Peronospora candida, Fuckel. Primrose Mould; densely cæspitose, white; threads erect, dichotomously branched; ultimate branchlets short, spreading; sporidia ovate.—On leaves of Primrose. Near Corwen, N. Wales. July, 1866.
The following genus is entirely new to Britain. Its position is
next to Microsphæria at page 219.
Podosphæra, Kunze.
Mycelium effuse, web-like, evanescent; conceptacles sphærical, containing one subglobose 8-spored sporangium; spores ovate; appendages few, dichotomous, thickened at their extremities, hyaline.
Podosphæra Kunzei, Lév. Plum Blight; amphigenous; conceptacles minute, scattered, globose; appendages three times the length of the diameter of the conceptacles.—On leaves of Prunus domestica. Shere, Surrey. Sept., 1865. (Dr. Capron.)
Podosphæra clandestina, Lév. Hawthorn Blight; amphigenous; conceptacles minute, globose, scattered; appendages (8-10) equal in length to the diameter of the conceptacles; branches short and rounded at their extremities.—On leaves of the Hawthorn. Upper Holloway. October, 1864; Shere, Surrey, September, 1865. (E. C.)
Uncinula Wallrothii, Lév. Sloe Blight; amphigenous; mycelium web-like, evanescent; conceptacles minute, scattered; sporanges 12-16, pear-shaped, 6-spored; appendages numerous, twice the length of the diameter of the conceptacles.—On leaves of the Sloe, Prunus spinosa. Shere, Surrey. October, 1865. (Dr. Capron.)