530 C^OHACEI. 



extremity.— Berk, Outl. p. 208. CooJce M.F. t. 7, /. 158, 159. 

 Uredo oblongata. Grev.t. 12. Eng.Fl.Y.p.376. 



On Luzulce. May. — July. 



1587. Trichobasis betae. Lev. " Beet-leaf Rust." 



Spots yellow; heaps subrotund and oval, scattered and con- 

 centric, on the uiDper surface ; epidermis at length bursting ; 

 spores subglobose, shortly pedicellate, brown. — Berk. Outl. p. 

 208. Cooke M.F. p. 209. Cooke exs. no. 70. Uredo Betas. Pers. 

 Syn. p. 220. Fng. Fl. y. p. 377 . Berk. exs. no. 60. Cooke L.F, 

 no. 39. 



On leaves of Beta vulgaris. Aug. Sept. Common. 



1588. Trichobasis suaveolens. Lev. " Thistle Rust.'^ 



Spots obliterated, yellow on the opposite side ; sori subrotund, 

 nearly plane, scattered, at length confluent, on the under sur- 

 face, surrounded by the ruptured epidermis; spores globose, 

 hvoyfi\.—Berk.Outl.p.20^. Cooke 31. F.t. 7, f.lbl, 163. Cooke 

 exs. no. 73. De Bary Brandpilzeyt.'iii. f. 1-4. Uredo suaveolens. 

 Pers. Syn. p. 221. Eng. Fl. y. p. 379. 



On leaves of Cnicus arvensis, &c. Summer. Common. 



It generally covers the whole under surface of the leaves, and has a pecu- 

 liar odour, more or less strong. 



1589. Trichobasis geranii. B. " Geranium Eust." 



Spots yellowish ; sori subrotund, nearly plane, scattered or 

 confluent ; spores subglobose, brown. — Berk. Outl. p. 208. Cooke 

 M.F. p. 210. Vredo geranii. D. C. Fl. Fr. vi. p. 73. Grev. t, 8, 

 Eng.Fl. v. p. 380. Sow. t. 398,/. 5. 



On various geraniums. 



1590. Trichobasis hydrocotyles. Cooke. " Fluke- wort 



Eust." 



Without definite spots ; sori chiefly on the upper, sometimes 

 on the under surface, scattered, variable, roundish, erumpent, 

 surrounded by the ruptured epidermis ; spores subglobose, at 

 length brown ; epispore rough with minute tubercles. — Cooke 

 Seem. Journ. Bot. ii.p. 344, M.F. p. 209, t. 8,/. 168, 169. Cooke 

 exs. no. 69. Uredo Hydrocotyles. Bertero. Mont. Fl. Fernand. no. 

 59. Fl. Chil. viii./>. 50. Ann. Sc. Nat. 1835. Mont. Syll.p. 315. 

 Desm. exs. no. 2123. Rav. Fung. Car. Cooke L.F. no. 44. 



On Hydrocotyle vulgaris. July. — Sept. [S. Carolina.] 



