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192 MICROSCOPIC FUNGI.
^cidium Gralii, Pers. Bedstratv Cluster-Cups ; spots
linear or oblong, obscurely brown; peridia scattered, rarely aggregate,
dentate, "uhitish ; spores white.— On the leaves of Galium
verum and G. mollv.go. (Plate II. figs. 15— 17.)
I am doubtful whether the JEcidium on Galium mollugo is
really this species. — (J/. C. C.)
JEcidiiiin Bunii, DC. Pig-nut Cluster-Cups ; spots
obliterated, subiculum thickened — ; peridia in irregular subrotund
or oval heaps; spores orange. On Bunium bulbocastanum and
Pimpinella saxifraga. Spring.
JEcidium Valerianacearum, Dub. Valerian Cluster-
Cups ; hypogenous, rarely cauline, spots on a tliickened subcircular
or oblong base ; i^eridia scattered, more or less crowded,
cup-shaped, tawny, margin erect, denticulate ; spores dirty-yellow.
— On Valeriana officinalis and V. dioica. North Britain.
-Slcidiuni Asperifolii, Pers. Borage Cluster-Cups ;
clusters subrotund, on a slightly thickened subiculum; peridia
scattered ; spores yellowish-white.—On leaves of various Boragineoi.
Summer. The parts of the leaves on which it occurs are
rendered concave on one side and convex on the other.
JEcidium Grossuiarise. DC. Gooseberry Cluster-Cups;
spots yellow, bright red on the opposite side, with a yellow border
; peridia crowded in roundish heaps, at length brown, and
surrounded with a brown area; spores orange.
— On leaves and
fruit of Gooseberry and Currant. Common. May to June.
^cidium Urticse, DC. Nettle Cluster-Cups; spots
obliterated, subiculum thickened; peridia disposed in elongated
or subrotund heaps, at first subglobose, then gaping; spores
orange. — On leaves and steins of Nettles, distorting them very
much. Common. June. (Plate I. figs. 10, 11.)
-Scidium Behenis, DC. Bladder-Campion Cluster-
Cups ; spots yellow, brown on opposite side ; peridia somewliat
circinating, in subrotund heaps ; spores brown.— On Silene inflata.
Not common. Some of the peridia are short and open, others
larger and closed.
.Sleidium Orobi, DC. Bitter-Vetch Cluster-Cups ;
spots yellow, effused ; peridia scattered and disposed in small
heaps ; spores at length white. — On stems and leaves of Orohus
taberosus. Scotland.
y. Suhimmersce.
.aJcidium Compositarum, Mart. Composite Cluster-
Cups ; spots purplish, subrotund, confluent above ; peridia
crowded, in orbicular patches, or circinating, on the under suiface ;
spores orange, oval.