, APPENDIX. 225 



oval, flattened, surrounded by the ruptured epidermis ; spores 

 subglobose, smooth, brown. —On leaves of y^ihusa Gynapium. 

 Condilion of Puccinia /Ethusce. 



Trichobasis Conii, Strauss. Sori oblong or irregular, 



convex, dark rusty-brown ; spores subglobose or oval, slightly 



rough, brown. — On stems and leaves ot Conium. Condition of 

 Fuccinia Conii. 



Trichobasis Impatientis, Rabh. Sori roundish, pul- 

 verulent, reddish-brown ; spores subglobose, brown ; epispore 

 smooth. — On leaves of Impatiens fulva, &c. Condition of Puccinia 

 nolitangeris. 



Trichobasis Rumicum, DC, Sori rounded, small, on 

 both surfaces, encircled by the ruptured epidermis, flattened ; 

 spores globose. — On leaves of various species of Rumex. 



Trichobasis Umbellatarum, Lev. Hemlock Rust; 

 spots yellowish; sori subrotund and ovate, scattered, on the under 

 surface, surrounded by the ruptured epidermis ; spores ovate, 

 oval, and oblong in the same heap, brown. — On Conium maculatumy 

 Apium graveotens, and other TJmbellifero'. August and September. 

 Uredo spores of Puccinia TJmbelUferarum. 



Trichobasis Heraclei, B. Hogweed Rust; on the 

 under surface, scattered, sometimes subconfluent, roundish, light 

 brown, girt by the remains of the epidermis ; spores obovate, 

 with a very short peduncle. — On Heracleum spondylium. June 

 and July. Uredo spores of Puccinia Heraclei. 



Trichobasis Hydrocotyles, Cooke. Flukewort Rust ;. 

 without definite spots ; sori chiefly on the upper, sometimes on 

 the under surface, scattered, variable, roundish, erumpent, sur- 

 rounded by the ruptured epidermis ; spores subglobose, at length 

 brown ; epispore rough with minute tubercles.— On Hydrocotyle 

 vulgaris. Epping, July to September, 1863 and 1864. (Plate 

 Vlil. figs. 168, 169.) 



Trichobasis Betse, Lev. Beet-leap Rust ; spots yellow; 

 he;i|js subiotund and oval, scattered and concentric, on the upper 

 surface; epidermis at length bursting; spores subglobose, shortly 

 pedicellate, brown.— On the leaves of Beet. August and Sep- 

 tember. Common. 



Trichobasis Fabse, Lev. Bean Rust ; spots obliterated ; 

 son subrotund and oval; buUate, scattered and aggregate, sur- 

 rounded by the ruptured epidermis; spores ovoid, brown.— Oa 

 Beans. August and Sepie Tiber. Common. 



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