APPENDIX. 217 



confluent ; sporidia ovoid or subglobose, orange. — On leaves of 

 Tropceolum aiuncum. Shore. October, 1865. {J)r. Capron.) 



Uredo Allionun, DC. GiiiLio Uuedo; spots obliterated; 

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

 subglobose, yellow or whitish. — On various species of Allium. 

 Common. 



* * Spores brown. 



XTredo Statiees, Desm. Sea-Latender Ueedo ; sori few 

 and scattered, orbicular or oval ; spores sessile, globose, brown. — 

 On various species of Statice. 



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

 minute, crowded, subrotund, slightly confluent, on the under 

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

 Circaa lutetiana. June, July. Common. Said to be the conidia 

 of Puccinia Gircaa. (Plate VII. figs. 13.5, 136.) 



Uredo bifrons, Grev. Twin-paced Uredo. On both 

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

 brown, girt with the remains of the epidermis ; spores globose.^ 

 On Sorrel-leaves {Uumex acetosa and S,. acetosella). July, Sep- 

 lejiber. Common. (Plate Vtl. figs. 137-139.) 



COLEOSPORIUM, Lev. 



Spores cylindrical, septate, some separating at the joints, some 

 of a different nature, persistent. — Berk. Outl., p. 333. 



Coleosporium Tussilaginis, L^v. Coltsfoot Rust ; 

 on the under surtace, prominent, crowded, generally forming 

 circles, becoming very confluent ; spores numerous, subovate, 

 orange-yellow. — On TusHlago Farfara. Summer. Common. 

 (Plate Vlll. figs. 180, 181.) 



Coleosporium Petasitis, Lev. Buttekbttr Hust ; on 

 the under surface, minute, depressed, spreading, somewhat ag- 

 gregate, sub-confl.uent, irregular in form ; spores oval, orange, 

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



Coleosporitun pingue. Lev. Tawny-Rose Rust ; spots 

 obliterated ; sori effuse, on the nerves and petioles of the leavea ; 

 spores ovoid, yeUowish-brown.— On Roses, &o. 



Coleosporium miniatum, Pers. Obange-Rose Rust ; 



