196 MICEOSCOPIC FUNGI. 



^cidium crassum, Pers. BrcKiHouN Cluster-Cups? 

 spots yellow-brown, subiculum thickened; peridia crowded into a 

 roundish heap, at first globose, yellow, at length open ; spores 

 orange. — On Rhamtius cathariicus and R. frangula. Common. 

 Said to be a condition of Puccinia coronata. 



^cidium Periclymeni, DC. Honeysuckle Cluster- 

 Cups ; spots variegated, yellow and brown, subiculum thickened;, 

 peridia sometimes elongated, in roundish or effused heaps; spores 

 orange. — On the under surface of Honeysuckle leaves. Not 

 common. June to August. Possibly only a variety of the last. 



jS. Poculiformce. 



^cidium Calthse, Grev. Marsh-Marigold Cluster- 

 Cups; aggregate; peridia somewhat campanulate, with numerous 

 minute marginal teeth; spores bright orange, sublogose or oval. 

 — On leaves and petioles of Calthapalustris. Margin of peridia 

 pale and brittle. Ilare. Spring. Said to be a state of Puccinia 

 CalthcB. 



^cidium RanunculaeearuroL, DC. Crowfoot Cluster- 

 Cups; spots obliterated, subiculum thickened ; peridia in irregu- 

 lar heaps, densely crowded together ; spores oraii2:e. — On leaves 

 of various Ranunculacece ; very common on. R. Ficaria, j^Qt un- 

 common on_ R. repens, more rarely on R. acris and R. bulbosus^ 

 Sprins:. Said to be a condition of Uromyces Ficarice. (Plate 11. 

 figs. 12-14.) 



^cidium Galii, Pers. Bedstraw Cluster-Cups ; spots 

 linear or oblong, obscurely brown; peridia scattered, rarely aggre- 

 gate, dentate, whitish ; spores white. — On the leaves of Galium 

 veruiii and G. mollugo. Said to be a state of Puccinia Galiorum 

 (Plate IT. figs. 15-17.) 



-Scidium Bunii, DC. Pig-nut Cluster-Cups ; spots 

 obliterated, subiculum thickened; peridia in irregular subrotund 

 or oval heaps; spores orange. — On Bunium bulbocastanum. Spring. 

 Said to be a state of Puccinia bulbocastani. 



^cidmm Pimpmellse, Kirch. Pimpinella Cluster- 

 Cups ; spots obliterated ; peridia in irregular clusters, cup-shaped ; 

 spores yellowish-brown.— On leaves of Pimpinella Saxifraga. Said 

 to be a condition of Puccinia Pimpinellce. 



.fficidium Valerianacearum, Dub. Valerian Cluster- 

 Cups ; hypogenous, rarely cauline, spots on a thickened subcir- 

 cular or oblong base ; peridia scattered, more or less crowded, 

 cup-shaped, tawny, margin erect, denticulate; spores dirty-yellow^ 



