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RUST, SMUT, MILDEW, & MOULD.
RUST, SMUT, MILDEW, & MOULD.
Plate VII. W. West imp. THE BRITISH FUNGI : A Plain and Easy Account of British Fungi: with especial reference to the Esculent and other Economic Species. Illustrated with Coloured Plates of 40 Species. 2nd Edition. Fcap. 8vo. , price 6 s. “The author is a thorough mycophagist, well acquainted with the peculiar features by which the most remarkable of the edible kinds of Fungi may be known.”— Gardeners’ Chronicle. “A very readable volume upon the lowest and least generally understood race of pla
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PREFACE TO SECOND EDITION.
PREFACE TO SECOND EDITION.
THE first edition of this Work having for some time been out of print, and the demands of the public encouraging the publisher to proceed with a new edition, I have added, in a second Appendix, descriptions of all the species discovered in Britain since 1865, so far as they relate to the Orders included in this volume. The success which has attended the sale of this Work, and the number of fresh observers it has brought into the field, has greatly tended to the necessity for a second Appendix. A
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CHAPTER I. CLUSTER-CUPS.
CHAPTER I. CLUSTER-CUPS.
IN these latter days, when everyone who possesses a love for the marvellous, or desires a knowledge of some of the minute mysteries of nature, has, or ought to have, a microscope, a want is occasionally felt which we have essayed to supply. This want consists in a guide to some systematic botanical study, in which the microscope can be rendered available, and in which there is ample field for discovery, and ample opportunity for the elucidation of facts only partly revealed. Fungi, especially th
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CHAPTER II. SPERMOGONES.
CHAPTER II. SPERMOGONES.
IN addition to their spore-bearing spots, lichens have for some time been known to possess other organs, termed spermogones , which are probably concerned more or less in the reproductive process. The first intimation of the existence of similar bodies in the entophytal fungi originated with M. Unger in 1833, but it was left to Dr. de Bary and the Messrs. Tulasne, twenty years later, to examine and determine satisfactorily the nature and value of the spermogones of the Uredines. It was at first
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CHAPTER III. DI-MORPHISM.
CHAPTER III. DI-MORPHISM.
BEFORE entering further and more fully upon the subject of this volume, it may be advisable to attempt an explanation of a phenomenon of no uncommon occurrence in many groups of Fungi, and which is termed di-morphism . In the Uredines, or uredo-like fungi, as well as other of the Coniomycetes (in which the spores are the principal feature), the same fungus appears under two or more distinct forms, not necessarily mere differences of age, but so distinct that they have been regarded (and some are
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CHAPTER IV. MILDEW AND BRAND.
CHAPTER IV. MILDEW AND BRAND.
DR. WITHERING’S “Arrangement of British Plants” in 1818 reached its sixth edition. This is less than half a century ago, and yet the whole number of species of Fungi described in that edition was only 564, of which three hundred were included under the old genus Agaricus . Less than eighty of the more minute species of Fungi, but few of which deserve the name of microscopic, were supposed to contain all then known of these wonderful organisms. Since that period, microscopes have become very diff
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CHAPTER V. COMPLEX BRANDS.
CHAPTER V. COMPLEX BRANDS.
FROM the twin-spored genus we pass to another, in which the spores are usually divided into three cells, and which, from this cause, has been named Triphragmium . Only one species has hitherto been found in this country, and that not very commonly, on the leaves of the meadow-sweet, Spiræa ulmaria ( Plate III. fig. 47). Externally, it much resembles, in the size and character of the pustules, many of the above-named brands, but when seen under the microscope this similarity disappears. In genera
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CHAPTER VI. SMUTS.
CHAPTER VI. SMUTS.
ONE of the fungal diseases of corn long and widely known has obtained amongst agriculturists different appellations in different localities. In some it is the “smut,” in others it is respectively “dust-brand,” “bunt-ear,” “black-ball,” and “chimney-sweeper,” all referring, more or less, to the blackish soot-like dust with which the infected and abortive ears are covered. This fungus does not generally excite so much concern amongst farmers as the other affections to which their corn-crops are li
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CHAPTER VII. COMPLEX SMUTS.
CHAPTER VII. COMPLEX SMUTS.
SOME of the microscopic fungi are the most unpromising and uninteresting objects to the naked eye which could well be imagined. No one would suppose that the black dust so profusely shed in such genera as Ustilago and Polycystis could be better than as much soot; unless he has learnt by experience not to judge by appearances, but to suspend judgment until examination. The axiom will sooner or later force itself upon all who examine minute objects with the microscope, that all organic nature, whe
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CHAPTER VIII. RUSTS.
CHAPTER VIII. RUSTS.
UNFORTUNATELY, this group of fungi contains species but too well known for their ravages amongst graminaceous plants, especially the cereals. “Corn rust,” as it is generally called, has a reputation little better than mildew, and it really deserves no better, for it is only another form of that pest of the farm, from the mycelium of which the corn-mildew is at length developed. There are two species very closely allied (doubtless only forms of the same species with different spores) which attack
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CHAPTER IX. RUSTS.
CHAPTER IX. RUSTS.
A QUARTER of a century ago, and all the fungi enumerated in the preceding and in the present and following chapters would have been arranged under three genera, called respectively Æcidium , Puccinia , and Uredo . Under the last-named genus all the species illustrated in the present chapter, beside many others, would have found “a habitation and a name.” There are still a few which bear the old generic name, and, if only out of respect, we shall grant them the first place. Let the first bright d
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CHAPTER X. WHITE RUSTS.
CHAPTER X. WHITE RUSTS.
ALLUSION has already been made to the important memoir recently published by Dr. de Bary. “White rusts” occupy a conspicuous position in that memoir, and the experiments therein detailed, with the conclusions arrived at, will be largely drawn upon in furnishing the present chapter. Whilst believing that we have fairly represented the views, and faithfully narrated the story of research, if not literally, but denuded of some technicality, yet in such manner as to convey the sense of our author, w
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CHAPTER XI. MOULDS.
CHAPTER XI. MOULDS.
TWENTY years since, and some of these little pests were altogether unknown, whilst others were only recognized and partly understood by a few scientific men. During the period to which we have alluded more than half the present species contained in the genus Peronospora had never been observed, and amongst these the most devastating of its tribe, the associate and undoubted cause of the potato disease. Parasitic fungi are far more numerous, both in individuals and species, than most persons are
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CHAPTER XII. WHITE MILDEWS OR BLIGHTS.
CHAPTER XII. WHITE MILDEWS OR BLIGHTS.
NOTWITHSTANDING the inconvenience to ourselves of calling very different fungi by the same common name of “mildew,” the popular mind does not recognize the inconvenience, since it scarcely troubles itself to inquire whether they are not all the same thing. In obedience to this custom, we again write of “mildew,” or “blight,” as it is called in some districts, but of a very different kind to that which is so detrimental to growing crops of corn. In the present instance it is our intention to illu
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CHAPTER XIII. SUGGESTIONS.
CHAPTER XIII. SUGGESTIONS.
IF, in offering a few practical suggestions, we either repeat ourselves, or communicate common-place hints, those who may know already all we shall essay to tell them will please to pardon and pass on. All the information essential under this head relates to collecting, examining, and preserving microscopic fungi. Collecting does not differ, except in the objects themselves, from any other botanical collecting. Those who attempt it must be prepared to sacrifice their kid gloves and patent-leathe
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Rœstelia, Reb.
Rœstelia, Reb.
Peridium elongated, at length opening by lateral fissures, or a terminal lacerated mouth. Spermogonia on the opposite surface, on the same or on different leaves. Rœstelia cancellata , Reb. Pear-leaf Rœstelia ; spots yellow, then red, prominent; peridia split to the base into laciniæ, which remain united at the apex.—On Pear leaves. Not very common. Autumn. ( Plate II. figs. 20, 21.) Rœstelia cornuta , Tul. Horn-like Rœstelia ; spots rusty-brown; peridia cylindrical, slightly curved, yellowish-b
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Peridermium, Chev.
Peridermium, Chev.
Peridium elongated, at length bursting irregularly. Spermogonia scattered, conspicuous. Peridermium Pini , Chev.; peridia oblong, scattered, large; spores orange, abundant; spermogonia vernal or autumnal, or both; spermatia large, white.—On leaves and young branches of Scotch Fir. Common in Scotland, occasional in England. Summer. ( Plate II. figs. 27, 28.) Peridermium elatinum , Lk.; simple, immersed; peridia elliptic, pallid; sporidia orange.—On Silver Fir, altering both foliage and ramificati
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Æcidium, Pers.
Æcidium, Pers.
Peridium seldom elongated, opening by a terminal mouth, surrounded by a fringe of recurved teeth, or when short bursting irregularly. Spores disposed in chains. Spermogonia on the same or the opposite surface, clustered or scattered, central or intermixed. Sect. I. — Peridia scattered ( not collected in tufts or clusters ). Æcidium leucospermum , DC. White-spored Cluster-Cups ; spots yellowish; peridia scattered, often covering the whole under surface; spores white, ovate.—On both sides of the l
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Sect. II. Peridia in tufts or clusters.
Sect. II. Peridia in tufts or clusters.
Æcidium Berberidis , Pers. Berberry Cluster-Cups ; spots roundish, bright red; subiculum thickened; peridia in subrotund or oval patches, often elongated; spores orange.—On leaves, peduncles, and fruit of the common Berberry. Common. May to July. ( Plate I. figs. 7-9.) Æcidium Thalictri , Grev. Meadow-Rue Cluster-Cups ; collected in roundish clusters; peridia oblong; spores bright orange.—On Thalictrum alpinum . Not uncommon in Scotland. Æcidium crassum , Pers. Buckthorn Cluster-Cups ; spots yel
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Endophyllum, Lév.
Endophyllum, Lév.
Peridium enclosed within the substance of the leaf, bursting irregularly. Endophyllum Sempervivi , Lév.; peridia immersed, elliptic or roundish; spores ochraceous, becoming brownish.—On leaves of Houseleek....
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Xenodochus, Schl.
Xenodochus, Schl.
Spores multiseptate, moniliform, breaking up into many distinct articulations.— Berk. Outl. , pp. 328. Xenodochus carbonarius , Schl. Burnet Chain-Brand ; scattered, in small tufts, hypogenous; spores curved or straight, composed of from 5 to 15 articulations; obtuse at one extremity, slightly attenuate at the other.—On Burnet. Very rare. ( Plate III. fig. 29.)...
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Aregma, Fr.
Aregma, Fr.
Spores cylindrical, multiseptate, scarcely moniliform, borne on a long peduncle.— Berk. Outl. , p. 329. Aregma mucronatum , Fr. Rose Brand ; hypogenous, scattered over the leaves in minute tufts; spores 5- to 7-septate, terminal joint mucronate; peduncles incrassated below, fusiform.—On leaves of various Roses. Autumn. Frequent. ( Plate III. fig. 38.) Aregma acuminatum , Fr. Burnet Brand ; hypogenous, scattered in minute tufts; spores multiseptate, terminal joint acuminate; peduncles equal.—On B
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Triphragmium, Lk.
Triphragmium, Lk.
Spores trilocular, septa mostly vertical and horizontal.— Berk. Outl. , p. 332. Triphragmium Ulmariæ , Lk. Meadow-sweet Brand ; spots obliterated; sori at first subrotund, covered with the epidermis; at length, when the cuticle has vanished, effuse; spores brown, subturbinate, divided by a vertical dissepiment, shortly pedicellate.—On leaves of Meadow-sweet, Spiræa ulmaria . Autumn. ( Plate III. fig. 48.)...
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Puccinia, Pers.
Puccinia, Pers.
Spores uniseptate, supported on a distinct peduncle.— Berk. Outl. , p. 329. Puccinia graminis , Pers. Corn Mildew ; spots pale, diffuse; sori linear, confluent, amphigenous; spores at length black, clavate, very slightly constricted.—On the leaves and culms of corn and grass. Autumn. Very common, and injurious to corn. ( Plate IV. figs. 57-59.) Var. β. Arundinis , Grev. Sori broad; spores more constricted and with longer peduncles.—On the leaves and sheaths of reeds. Very common. Puccinia striol
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Gymnosporangium, DC.
Gymnosporangium, DC.
Peduncles extremely long, agglutinated by gelatine into a tremelloid expanded mass. Spores uniseptate. Gymnosporangium Juniperi , Lk.; forming a soft gelatinous, irregular, orange mass; spores ovate or subelliptic, filled with subglobose granules.—On living twigs of Juniperus communis ....
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PODISOMA, Lk.
PODISOMA, Lk.
Peduncles extremely long, agglutinated by gelatine into a common stem, spreading out above into a clavariæform mass; spores mostly uniseptate.— Berk. Outl. , p. 331. Podisoma Juniperi , Fr.; orange, clavariæform, somewhat branched; stroma simple; spores very long, lanceolate, filled with elliptic granules.—On living branches of Juniperus communis . Not common. Podisoma foliicolum , B.; epiphyllous, brown-black masses, subglobose, subelliptic, or irregular, consisting of radiating, crowded, very
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Tilletia, Tul.
Tilletia, Tul.
Spores spherical, reticulated, proceeding from delicate branched threads. Tilletia caries , Tul. Bunt ; included within the germen; spores spherical, rather large, black.—On wheat, filling the grains with dark-coloured spores, fetid when crushed. Autumn. Very common. ( Plate V. figs. 84-91.)...
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Ustilago, Link.
Ustilago, Link.
Plant deeply seated. Spores simple, springing from delicate threads, or in closely-packed cells, ultimately breaking up into a powdery mass.— Berk. Outl. , p. 335. Ustilago segetum , Ditm. Corn Smut ; produced on the receptacle and rachis; epidermis soon ruptured; spores loose, minute, globose, black.—On the ears of corn and grasses. Autumn. Very common. ( Plate V. figs. 98, 99.) Ustilago urceolorum , Tul. Sedge Smut ; produced on the glumes and utricles; epidermis soon bursting; spores in a com
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Uredo, Lév.
Uredo, Lév.
Stroma composed of little irregular cells forming a lentiform disk, whose surface is covered with many layers of cells, each of which encloses a spore; spores simple, always without any appendage.— Berk. Outl. , p. 331. Uredo Potentillarum , DC. Potentilla Uredo ; spots yellowish; sori subrotund and oval, bullate, aggregate, open, confluent; spores subglobose, subcoherent, orange.—On various Rosaceæ . Common. Uredo Saxifragarum , DC. Saxifrage Uredo ; spots pallid; sori subrotund and oval, raise
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Lecythea, Lév.
Lecythea, Lév.
Stroma surrounded or sprinkled with elongated abortive spores. Spores free, invested with their mother-cell, or concatenate.— Berk. Outl. , p. 334. Lecythea Ruborum , Lév. Bramble Rust. Spots pale, brown or purple on the opposite side, sometimes depressed above; sori subrotund, aggregate; epidermis soon bursting; spores globose or subglobose, echinulate, bright ochraceous-yellow.—On the under surface of Bramble leaves. July and August. Very common. ( Plate II. fig. 40.) Lecythea Rosæ , Lév. Rose
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Trichobasis, Lév.
Trichobasis, Lév.
Spores free; attached at first to a short peduncle, which at length falls away.— Berk. Outl. , pp. 332. Trichobasis rubigo-vera , Lév. Round Corn Rust ; spots yellow, heaps oval, scattered, generally on the upper surface; epidermis at length bursting longitudinally; spores subglobose, reddish-brown, easily dispersed.—On Grasses and Corn. Throughout the Summer. Very common. ( Plate VII. figs. 140-142.) Trichobasis linearis , Lév. Long Corn Rust ; spots yellow-brown. Sori elliptic, then elongated
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Uromyces, Lév.
Uromyces, Lév.
Spores unilocular, attached permanently to a decided peduncle of greater or less length.— Berk. Outl. , p. 333. Uromyces Alliorum , DC. Garlic Rust ; spots obliterated, sori linear, oblong, or oval, amphigenous; spores subglobose, yellow.—On species of Allium . Uromyces Ulmariæ , Lév. Golden Rust ; broad, pulverulent, on the under surface of leaves, nerves, and petioles; spores numerous, subglobose, bright reddish-orange.—On Spiræa Ulmariæ , Roses, &c. Common. ( Plate VII. figs. 147, 148
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Polycystis, Lév.
Polycystis, Lév.
Spores irregular, consisting of several cells.— Berk. Outl. , p. 334. Polycystis Colchici , Tul. Meadow-saffron Smut ; sori elongated, bursting irregularly; spores smooth or slightly papillose.—On leaves of Meadow-Saffron. Not common. Polycystis Violæ , B. and Br. Violet Smut ; sori scattered, elongated, on both surfaces of the leaves and petioles; spores more or less globose, consisting of several cells surrounded by a common irregular crust.—On leaves and petioles of Violets. August. Common. (
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Tuburcinia, Fr.
Tuburcinia, Fr.
Plant deeply seated; spores multicellular, subglobose, or conchiform. Berk. Outl. , p. 335. Tuburcinia scabies , B. Potato Smut ; spores globose composed of minute cells forming together a hollow globe with one or more lacunæ, generally attached laterally by a slender thread, olive. On Potatoes. Common. ( Plate III. fig. 54.) Tuburcinia Trientalis , B. and Br. Trientalis Smut ; sori two lines broad, bullate, containing a black mass of rather irregular depressed subglobose spores, which are very
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Coleosporium, Lév.
Coleosporium, Lév.
Spores cylindrical, septate, some separating at the joints, some of a different nature, persistent.— Berk. Outl. , p. 333. Coleosporium Tussilaginis , Lév. Coltsfoot Rust ; on the under surface, prominent, crowded, generally forming circles, becoming very confluent; spores numerous, sub-ovate, orange-yellow.—On Tussilago Farfara . Summer. Common. ( Plate VIII. figs. 180, 181.) Coleosporium pingue , Lév. Tawny Rose Rust ; spots obliterated, sori effuse, on the nerves and petioles of the leaves; s
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Melampsora, Cast.
Melampsora, Cast.
Spores of two orders, crowded into a dense compact mass, with or without a covering, wedge-shaped. Berk. Outl. , p. 333. Melampsora Euphorbiæ , Cast. Hypophyllous; sori of summer spores golden-yellow, scattered, distinct, sometimes cauline; spores small, subglobose; sori of perfect spores becoming black, small, roundish, spores prismatic, membrane thickened above, dark brown.—On leaves and stems of Euphorbia helioscopia , E. exigua , and other species of spurge. Common. ( Plate IX. figs. 193, 19
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Cystopus.
Cystopus.
Receptacle consisting of thick branched threads; conidia concatenate, at length separating; oospores deeply seated on the mycelium. Cystopus candidus , Lév. Crucifer White Rust ; conidia equal, globose; membrane equal, ochraceous; oospores subglobose, epispore yellowish-brown, with irregular obtuse warts; warts solid.—On Shepherd’s-purse, Cabbages, and other Cruciferæ. Summer. Very common. ( Plate X. figs. 198-200, 205-207.) Cystopus cubicus , Str. Goatsbeard White Rust ; conidia unequal; termin
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PERONOSPOREI, De By.
PERONOSPOREI, De By.
Parasitic threads mostly inarticulate. Spores of two kinds:—1. Acrospores on the tips of the branchlets; 2. Oospores large, globose, on the creeping mycelium. Peronospora infestans , Mont. Potato Mould ; threads of mycelium slender, always destitute of suckers; fertile threads thin, gradually attenuated upwards, with one to five branches, one or more inflated vesicles near the apices of the branches; branches either simple or with short branchlets; acrospores ellipsoid or ovoid; apex furnished w
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Sphærotheca, Lév.
Sphærotheca, Lév.
Mycelium arachnoid; perithecia globose, containing a single globose sporangium; appendages numerous, floccose.— Berk. Outl. , p. 404. Sphærotheca pannosa , Lév. Rose Blight ; mycelium thickened, woolly, felted, persistent; conceptacles minute, globose, scattered; appendages floccose, white; sporangium many-spored.—On the branches, calyces, petioles, and leaves of Roses. Very common. ( Plate XI. figs. 217, 218.) Sphærotheca Castagnei , Lév. Hop Blight ; on both surfaces; mycelium effuse, web-like
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Phyllactinia, Lév.
Phyllactinia, Lév.
Perithecia hemispherical, at length depressed, seated on a persistent or evanescent membranaceo-granular receptacle; appendages straight, rigid, acicular, at length bent back.— Berk. Outl. , p. 404. Phyllactinia guttata , Lév. Hazel Blight ; amphigenous; mycelium web-like, often evanescent; conceptacles large, scattered, hemispherical, at length depressed; appendages hyaline, rigid, simple; sporangia 4-20, containing 2-4 spores.—On the leaves of Hawthorn, Hazel, Ash, Elm, Alder, Beech, Birch, Oa
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Uncinula, Lév.
Uncinula, Lév.
Mycelium floccose; perithecia globose; appendages rigid, simple, bifid or dichotomous, uncinate, at length bent upwards.— Berk. Outl. , p. 404. Uncinula adunca , Lév. Willow Blight ; mycelium variable; conceptacles scattered or gregarious, minute; appendages simple; sporangia 8-12, sub-pyriform, containing 4 spores.—On the leaves of Willows, Poplars, Birch, &c. Not uncommon. ( Plate XI. figs. 221-224.) Uncinula bicornis , Lév. Maple Blight ; amphigenous; mycelium web-like, effuse, evanes
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Microsphæria, Lév.
Microsphæria, Lév.
Mycelium arachnoid; appendages straight, dichotomous; branchlets swelling at the tip, or filiform.— Berk. Outl. , p. 404. Microsphæria Hedwigii , Lév. Mealy Guelder-rose Blight ; hypophyllous; mycelium web-like, evanescent; conceptacles minute, globose, scattered; appendages few, very little longer than the diameter of the conceptacles; sporangia 4, ovate, containing 4 spores.—On leaves of mealy Guelder-rose. Near Greenhithe, Kent. Microsphæria penicillata , Lév. Guelder-rose Blight ; amphigenou
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Erysiphe, Hedw.
Erysiphe, Hedw.
Mycelium arachnoid; appendages floccose, simple or irregularly branched.— Berk. Outl. , p. 404. Erysiphe Linkii , Lév. Mugwort Blight ; amphigenous; mycelium web-like; fugacious or persistent; conceptacles minute, globose, scattered, emersed; appendages white, interwoven with the mycelium; sporangia 8-20, pyriform, with elongated pedicels.—On leaves of Mugwort. Autumn. Frequent. ( Plate XII. figs. 248, 249.) Erysiphe lamprocarpa , Lév. Composite Blight ; amphigenous; mycelium web-like, fugacious
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Chætomium, Kze.
Chætomium, Kze.
Perithecium thin, brittle, mouthless; sporangia linear, containing dark lemon-shaped spores. Berk. Outl. , p. 405. Chætomium elatum , Kze. Straw-bristle Mould ; perithecium sub-ovate, base radiato-fibrose, hairs of the vertex very long, interwoven, branched; spores broadly elliptic, apiculate at either end.—On mouldering straw, reeds, matting, &c. Very common. ( Plate XII. figs. 257-259.) Chætomium chartarum , Ehb. Paper-bristle Mould ; perithecium subglobose, black, surrounded by a brig
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Ascotricha, Berk.
Ascotricha, Berk.
Perithecium thin, free, mouthless, seated on loose, branched, conidiiferous threads; sporangia linear, containing dark elliptic spores.— Berk. Outl. , p. 405. Ascotricha chartarum , B. Paper Mildew ; perithecium thin, olive-brown, seated on radiating flocci; sporangia linear, numerous; spores broadly elliptic, chocolate-coloured.—On white printed paper in a deal candle-box. King’s Cliffe. ( Plate XII. figs. 254-256.)...
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Eurotium, Link.
Eurotium, Link.
Perithecia reticulated, vesicular, coloured, attached to mucedinous threads; sporangia delicate.— Berk. Outl. , p. 405. Eurotium herbariorum , Lk. Herbarium Mould ; perithecium spherical, sub-depressed, yellow, seated upon radiating expanded, branched, intricate flocci.—On plants in herbaria, and various decaying substances. Very common. ( Plate XII. figs. 260, 261.) The following species, belonging to those sections of Microscopic Fungi which are included in this volume, have been found in Brit
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Podosphæra, Kunze.
Podosphæra, Kunze.
Mycelium effuse, web-like, evanescent; conceptacles sphærical, containing one subglobose 8-spored sporangium; spores ovate; appendages few, dichotomous, thickened at their extremities, hyaline. Podosphæra Kunzei , Lév. Plum Blight ; amphigenous; conceptacles minute, scattered, globose; appendages three times the length of the diameter of the conceptacles.—On leaves of Prunus domestica . Shere, Surrey. Sept., 1865. ( Dr. Capron. ) Podosphæra clandestina , Lév. Hawthorn Blight ; amphigenous; conce
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ADDENDA.
ADDENDA.
[The following species have been added to the British Flora since the publication of the Appendix.] Æcidium Parnassiæ , Grav. Parnassia Cluster-cups ; hypophyllous; spots pallid; peridia in subrotund patches, irregularly disposed, tawny-yellow, between urceolate and concave; the margin thick and nearly entire; spores pallid. Duby. Bot. Gall. ii. p. 904.—On leaves of Parnassia palustris , near Glasgow. ( Dr. Greville. ) The original specimen is in the Edinburgh Herbarium. Æcidium Statices , Desm.
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