Pl. cell.aph. 7. PROTOMYCEZ. 152. Aicidium. 535 
a. Thece crowded together irregularly. 
1. Aicidium ranunculi. | Crowfoot ecidium. 
Tufts few, peridiated; thece crowded, pale, prominent; 
mouths torn, edges turned back. 
fEcidium ranunculi, De Cand. Syn. 51. 
JEcidium ranunculi acris, Persoon Syn, 210. 
On the lower face of the leaves of ranunculus acris, and 
ry. bulbosus. 
2. Acidium bunii. Earth-nut ecidium. 
Tufts ovate or orbicular, bullate, irregular; thece nu- 
merous, rather distinct, yellow and orange; mouths scarcely 
cut. 
AAcidium bunii, De Cand. Syn. 51. 
On the leaves of earth-nut. 
3. Acidium irregulare. Irregular ecidium. 
Tufts brownish, thickish; peridium pale-yellow, at first 
cylindrical blunt, then disappearing. 
Ecidium irregulare, De Cand, Syn. 5]. 
On the lower face of the leaves of buckthorn. 
4. AXcidium confertum. Crowded ecidium. 
Tufts with a whitish edge; /hece crowded, confluent, 
white ; mouths toothed; sporidia yellow, become brown. 
/Ecidium confertuin, De Cand. Syn. 51. 
Aicidium crassum £, Persoon Syn. 208. 
On the lower surface of the leaves of ranunculi. 
5. Akcidium crassum. Thick ecidium. 
Tufis irregularly crowded, thick, convex ; thece pitcher- 
shape, orange; sporidia pale-yellow. 
JEcidium crassum, Persoon Syn. 208. 
On the berry-bearing alder. 
y g 
6. AXcidium barbaree. French-cress ecidium. 
Thece crowded, orbicular; mouths whitish, crenulated ; 
sporidia orange-yellow. 
J&cidium barbarewe, De Cand. Syn. 51. 
On both faces of the leaves of French cresses. 
Tufts girt with a brownish margin. 
