216 MICROSCOPIC FTTfTOI. 



TTredoCaryophyllaeearunijJohnst. StitchwoetUeedo; 

 spots yellowish; sori subglobose, scattered and aggregate, minute, 

 generally on the under surface ; epidermis closed ; spores oval, at 

 length yellow. — On various Caryophyllacece. Autumn. 



TJredo Quercus, Brond. Oak-leaj Ueedo ; on the under 

 surface; sori yellow, then orange, minute, ovate, and orbicular, 

 slightly prominent, scattered, solitary or agglomerated into minute 



Eatches, surrounded by the ruptured epidermis ; spores subglo- 

 ose, pellucid, not cohering. — On Oak-leaves. September. Not 

 common. 



Uredo jporphyrogenita, Kze. Bibd-chekut Uredo; 

 spots purplisii ; sori subrotund, small, aggregate, hypogenous ; 

 epidermis at length ruptured ; spores coherent, subglobose. — O/i 

 leaves of Prumts Padm. Scotland, 1863. (Bev. M. J. Berkeley.) 



TTredo Vaeciniorum, P. BiiaEEUT Ubedo ; spots yellow- 

 brown ; sori subrotund, minute, aggregate, and scattered, on the 

 under surface of the leaves ; epidermis seldom ruptured ; spores 

 ovoid, yellowish. — On Facdnium Myrtillus and V. vitis-idma. 

 Scotland. 



TTredo confluens. DC. Meecuby Uebdo ; on the under 

 surface, depressed, yellow, oblong, concentric, at length con- 

 fluent ; spores nearly oval. — On Mercurialis perennia and M. 

 annua. May, June. Common. (Plate VII. figs. 133, 131.) 



TTredo Orchidis, Mart. Oechis Ueedo ; amphigenous ; 

 spots reddish-brown ; sori subrotund, arranged in circles, often 

 confluent ; sporidia subglobose, golden-yellow. — On Listera ovata 

 and Orchis latifolia. Crosby, near Liverpool. May, June, 1865. 

 (22. G. McLeod.) 



TJredo Euonymi, Mart. Spindeb Ueedo ; spots yellow- 

 ish ; sori roundish, circinating, often confluent ; epidermis erum- 

 pent ; sporidia ovoid and slightly coherent, tawny-yellow.— On 

 leaves of Eiionymus Europeeus. Darenth Wood, Kent. August, 

 1864. Rare. 



TJredo Empetri, DC. Ceowbeeey Ueedo ; hypogenous ; 

 spots obliterated ; sori oval, scattered ; the epidermis at first 

 convex, afterwards ruptured and concave ; sporidia ovoid or sub- 

 globose, bright yellow. — On JEmpetrnm nigrum. Near Llanderfel, 

 N.Wales. May, 1865. 



TJredo Tropseoli. Desmz. Nasturtium Ubedo; hypo- 

 genous ; spots pale-yellow ; sori minute, roundish, scattered or 



