ACIDIUM 387 
Rev. C. Wolley-Dod records (Journ. Roy. Hort. Soc. xii. p. liii.) an wcidium 
allied to 4c. Ficariae on his Hellebores at Malpas. I have not met 
with any other reference to an ecidium on that genus. The whole of the 
description is taken from Fischer, who adds that it belongs presumably to 
a hetercecious species. 
4écidium Ranunculacearum DC. var. Lingue. 
4. Ranunculacearum DC. Flor. fr. vi. 97 p.p. Grev. Flor. Edin. 
p. 446. Plowr. Ured. p. 266. 
4écidiospores. Aicidia hypophyllous, in roundish or elongated 
clusters of various sizes, cup-shaped, whitish, with a brittle 
margin; spores polygonal, orange-yellow, 17—28 x 14—20 u. 
On Ranunculus Lingua. Very rare; Duddingston Loch 
(Dr Greville). 
iT 
It was at one time suggested by the brothers Sydow that this acidium 
belonged to their Puccinta Calamagrostidis on Calamagrostis neglecta, but 
they have since seen reason to doubt the truth of this idea. 
7&cidium Poterii Cooke. 
Aicidium Poterii Cooke, Journ. Bot. ii. 39, pl. 14, f. 3; Handb. 
p- 540; Micr. Fung. p. 198. Plowr. Ured. p. 268. See also 
Berkeley, Eng. Fl. v. 373. 
Aicidiospores. AXcidia hypophyllous, in subrotund or elon- 
‘gated clusters on the nerves of the leaves, also upon the 
petioles, scattered or circinate, immersed, edges torn into minute 
fugacious teeth ; spores oval, yellowish. 
On Poterium Sanguisorba. May and June. A species of 
which nothing else seems to be known. 
ZEcidium Dracontii Schweinitz. 
eidium Dracontii Schwein. Trans. Amer. Phil. Soc. 1834. Cooke, 
Handb. p. 538; Micr. Fung. p. 200. Plowr. Ured. p. 266. Sace. 
Syll. vii. 831. 
4icidiospores. AKcidia on extensive pallid spots on the 
leaves, sometimes almost covering them, arranged without 
order, elongate; spores orange. 
25—2 
