APPENDIX. 213 



TTromyces Scrophularise, C. Figwort Rust ; spots 

 pallid ; sori subrotund, oblong or linear and confluent, surrounded 

 by the ruptured epidermis ; spores subglobose or oval, brown, on 

 long peduncles. — On leaves of Scrophularia aquatica. 



TTromyces Geranii, 0. Geranium Rust ; spots yellowish ; 

 sori subrotund, nearly plane, scattered or confluent; pseudo-spores 

 obovate, brown, on distinct peduncles.— On leaves of Oeranium. 



TTrpmyces concomitans, B. and Br. Sori crowded in a 

 ring, irregular, plane ; pseudo-spores obovate, even ; pedicels 

 attenuated downwards. — On Scrophularia nodosa, surrounding 

 pustules of JEcidium. 



TTromyces Betse, Kubn. Sori rounded, scattered, mixed 

 with the Trichohasis, dark-brown ; pseudo-spores obovate, brown, 

 siiiooth, with a slight hyaline point at the apex, on short peduncles. 

 — On leaves of Beta vulgaris. Distinct from Trichohasis Betce, 

 of which it is possible this may be a development. 



TTromyces excavata, DC. Spots none or yellowish ; sori 

 scattered, surrounded by the inflated epidermis j spores brown, 

 obovate, shortly pedunculate, or almost sessile. — On Euphorbia 

 exigua. 



TTromyces Behenis, LSv. Pustules subrotund or con- 

 fluent, for a long time covered by the cuticle ; spores coherent, 

 ovoid, brown, on long hyaline pedicels.— On leaves and stems of 

 Bladder Campion. 



TTromyces Junci, Tul. Pustules linear or confluent, 

 crowded, rather convex, dark-brown; pseudo-spores oblong, 

 brown, on long peduncles.^On rushes. 



TTromyces intrusa, L^v. Ladi:'s-ma.nilb Rust ; on the 

 under surface, scattered, or partially aggregate, reddish-brown, 

 rounded, somewhat prominent, minute, very unequal ; spores 

 roundish or oval.^On Alcliemilla vulgaris. This is the Trachy- 

 spora Alehemillm of some authors, of which JJreio Alchemilla is 

 an early condition or protospore. 



TTromyces concentrica, Lev. Hyacinth Rust ; spots 

 oblong or subrotund, crowded into patches, concentrically ar- 

 ranged ; epidermis bursting longitudinally ; spores rusty, obovate, 

 shortly pedicellate. — On wild Hyacinth. 



TTromyces Polygonl, Puckel. Knotgrass Rust ; cauline ; 

 sori elongated and confluent, convex, surrounded by the remains 

 of the ruptured epidermis; sporidia aab-globose or globose, 



