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GENTS 159. GYMNOSPORANGIUM De.* 
Peduncles extremely long, agglutinated by gelatine into a 
tremelloid, expanded mass. Spores uniseptate. 
Gymnosporangium juniperi Lk. On juniper. It has not occurred 
in this district. The only British species. 
GENUS 160. popIsoMA Lk.+ 
Peduncles extremely long, agglutinated by gelatine into a 
common stem, spreading out above into a clavarieeform mass. 
Spores uniseptate. 
1.—Podisoma juniperi communis /’r. On stems of juniper, Bath- 
easton. Bull t 427 fig. 1. We have one species only out of 
three British. 
GENUS 161. UREDO Lev. 
Stroma composed of little irregular cells, forming a lentiform 
disc, whose surface is covered with many layers of cells, each of 
which encloses a spore. Spores simple, always without any 
appendage. 
1.—Uredo Lini De. On Linum catharticum common. 
§ Lecythea Lini Lev. Cooke. MF. t 8 fig. 165-167. 
2,—Uredo confluens P. On Mereurialis perennis common. 
3.—Uredo symphyti De. On comfrey common. 
The above three species are those hitherto collected in this 
district, many others doubtless occur. There are thirteen named 
in Berkeley’s Outlines. 
GENUS 162. TRICHOBASIS Léu.|| 
Spores free, attached at first to a short peduncle, caducous, 
1.—Trichobasis rubigo-vera Lév. On corn and grasses common. 
ee er Sa ONT Oe 
* Gymnosporangium, from gymnos, naked, and sporos. 
+ Podisoma, from pous, a foot and soma, a body. 
{ Uredo, from uro, to burn 
§ Lecythea, from lecythos, the yolk of an egg. 
|| Trichobasis, from thrix, a hair, and basis, a foundation. 
