APPENDIX. 225 



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

 Tropccohm aduncum. Sliere. October, 1SG5. {l)r. Caprou.) 



Trichobasis fallens, Cooke. Clovee, Eust; spots obli- 

 terated ; sori amphigenous, numerous, scattered, subrotuud, 

 brown, surrounded by the remains of the ruptured epidermis ; 

 spores sub-ovate ; pedicels short, hyaline, evanescent ; epispore 

 verrucose. Uredo fallens, Desmz. — On leeaves of Clover, &c. 

 September. Not uncommon. 



Uromyces graminura, Cooke. CocKsrooT Rust ; epi- 

 phyllous ; sori oblong or confluent and linear, convex, black and 

 shining, so as easily to be confounded on casual observation with 

 Dothidea graminis, at length bursting longitudinally ;_ sporidia 

 subglobose or ovate, tawny, with hyaline pedicels of variable 

 length. — On leaves of BacUjlis glomerata. Shore. October, 1865. 

 {Dr. Capro7i.) 



Uromyces concentrica, Lev. Described at p. 208 as 

 TricJiobas'is Scillanm, B. ; but it appears to be a good Uromyces, 

 and has been placed in that genus by Levielle. 



Uromyces sparsa, Lev. Sandwort E,ust; spots pallid; 

 sori sub-rotund 'and oval, amphigenous fand. cauline ; epidermis 

 erumpent ; sporidia ovoid, brownish ; peduncles thickened, short. 

 — On Spergularia rubra. Swanscombe Marshes. June, 1865. 



Uromyces Polygon!, Puckel. Knotgrass Rust ; cauline ; 

 sori elongated and confluent, convex, surrounded by the remains 

 of the ruptured epidermis; sporidia sub-globose or globose, smooth, 

 yellowish-brown ; pedicels very long, thickened, hyaline, persistent. 

 'Capitularia Folygoni, Rabh.— On the stems of Polygonum avicii- 

 lare. October. Common. 



Cystopus spinulosus,De Bary. Thistle (White) Rust ; 

 conidia in time much elongated ; sori erumpent on both surfaces 

 of the leaves, white ; oospores globose ; epispore brown ; tubercles 

 minute, solid, very prominent, often acute and spinulose.— On 

 Thistles. Bungay, Suffolk. September, 1865. 



Peronospora Candida, Euckel. Primrose Mould ; 

 densely ca^spitose, white ; threads erect, dichotomously branched; 

 ultimate branchlets short, spreading ; sporidia ovate.— On leaves 

 of Primrose. Near Corwen, N. Wales. July, 1S6G. 



Q 



