538 ^CIDIACEI. 



1611. JEcidium dracontii. Schweln. " Arum Cluster Cups." 



Spermogones. 



Protospores. Spots pallid, extensively scattered over the 



leaves, sometimes nearly covering them ; peridia large, scattered, 



abundant, disposed without order on the spots ; spores orange. 



Scliwz. Trans. Am. Phil. Soc. 1834. Seem. Journ. ii. p. 41. 



CookeM.F.p.l'd^. 



On leaves of Arum triphyllum in gardens. Rare. 



[United States.] 

 Dr. Curtis refers this to JBcidium ari. B. but we think erroneously. 



Sect. 2. Peridia in tufts or clusters. 



a. Elongat^e. 



1612. ifficidium berberidis. Pers. " Berberry Cluster Cups." 

 Spermogones. 



Protospores. Spots roundish, bright red ; subiculum 

 thickened ; peridia in subrotund or oval patches, often elon- 

 gated; spores orange. — Pers. Syn. p. 20^. Eng.Fl. v./). 372. 

 Sow. t. 397, /. 5. Moug. exs. no. 86. Grev. t. 97. Kl. exs. no. 95. 

 Seem. Journ. \\.p. 35. Coolce M.F. 1. 1, /. 7-9. Kze. exs. no. 14. 

 Fckl. exs.no. 278. 



On leaves, peduncles, and fruit of berberry. May.— July. 



Common. [United States.] 



(Fig. 220, enlarged.) 



Said to be a condition of the corn mildew— P^ccwim graminis — see no. 

 1462. ante. 



1613. iEcidiuxn crassuxn. Pers. "Buckthorn Cluster Cups." 



Spermogones. 



Protospores. Spots yellow-brown, subiculum thickened ; 

 peridia crowded into a roundish heap, at first globose, yellow, 

 at length open ; spores orange. — Pers. Syn. p. 208. Eng. Fl. v. 

 p. 373. Pers. Ic. ^- Desc. 1. 10,/. 1, 2. Moug. exs. no. 89. Seem. 

 Journ. ii. p. 86. Cooke 31. F. p. 1^1. Cooke exs. no. 7. Fckl. exs. 

 no. 277. Berk. exs. no. 110. Cooke L.F. no. 53. uEcid. rhamni. 

 Pers. Obs. t. 2,/. 4. 



On Rhamnus catharticus and R. frangula. Common. 



[United States.] 



