APPENDIX. 217 



confluent ; sporidia ovoid or sub£?lobose, orange. — On leaves of 

 Tropaobim adancuni. ISliere. October, 18G5. {I)r. Capron.) 



Uredo AUiorum, DO. Gaultc Uredo; spots obliterated; 

 sori linear, oblong, and oval, on both surfaces; spores ovoid or 

 subglobose, yellov7 or wliitish. — On various species of Allium. 

 Common. 



* * Spores hroion. 



Uredo Statices, Desm. Sea-L.\vender Uredo ; sori few 

 and scattered, ori)icular or oval ; spores sessile, globose, brown. — 

 On various species of Statice. 



Uredo Circsese, A. and S. Nightshade Uredo; sori 

 minute, crowd;d, suDrotund, slightly confluent, on tne under 

 surface; spores irregular, ovate, small, ochraceous. — On leaves of 

 Circfie.a lutetiana. June. July. Common. Said to be the cunidia 

 of Pticcinia Circcsee, (Plate VII. tigs. 135, 136.) 



Uredo bifrons, Grev. Twin-faced Uredo. Oa both 

 surfaces of the leaves, often opposite, scattered, round, light- 

 brown, girt with the rem-uns of the epidermis ; spores globose.^ 

 On Sorrel-leaves {Rumex acetosa and R. acetosella). July, Sep- 

 le nber. Common. (Plate VII. tigs. 137-130.) 



CoLEOSPORiuM, Lev. 



Spores cylindrical, septate, some separatin? at the joints, some 

 of a different nature, persisteut. — Berk. OutL, p. 333. 



Coleospormm Tussilaginis, Lev. Coltsfoot Rust ; 

 on the under suriace, prominent, crowded, generally forming 

 circles, becoming very cntluent, ; spores numerous, subovate, 

 orange-vellow. — On tusnlago Furfara. Summer. Common. 

 (Plate VIII. figs. 180, 181.) 



Coleosporium Petasitis, Lev. Butterbur Rust; on 

 the under surtace, minute, depressed, spreading, somewliat ag- 

 gregate, sub-confluent, irreguhir in form; spores oval, orange, 

 or orange-red. — On Tussilago Petasiies. Autumn. Common. 



Coleosporium pingue, Lev. Tawny-R-ose Rust ; spots 

 obliterated ; sori effuse, on tlie nerves and petioles of the leaves ; 

 spores ovoid, yellowish-brown.— On Roses, &c. 



Coleosporium miniatum, Pers. Orange-Rose Rust ; 



