. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. ON 189 better developed, and the teleutospores are plainly but not so densely reticulate. Klebahn proved by cultures that P. Pimpinellae is distinct from P. Chaerophylli, and Semadeni similarly proved its difference from that species and from P. Heraclei; the latter showed (Centralbl. f. Bakt. 2. xiii. 215) that it could be transferred to other species of the genus Pimpinella, but not to other genera of the Umbelliferae. Distribution : Europe, Asia Minor, East Indies, 61.
. The British rust fungi (Uredinales) their biology and classification. Rust fungi -- Great Britain. ON 189 better developed, and the teleutospores are plainly but not so densely reticulate. Klebahn proved by cultures that P. Pimpinellae is distinct from P. Chaerophylli, and Semadeni similarly proved its difference from that species and from P. Heraclei; the latter showed (Centralbl. f. Bakt. 2. xiii. 215) that it could be transferred to other species of the genus Pimpinella, but not to other genera of the Umbelliferae. Distribution : Europe, Asia Minor, East Indies, 61. Puccinia Bupleuri Rud. JEcidium Falcariae /3. Bupleuri-falcati DC. Flor. fr. vi. 91. Puccinia Bupleuri Rud. in Linnsea, iv. 514 (1829). Cooke, Grevillea, vi. 47. Plowr. Ured. p. 154. P. Bupleuri-falcati Wint. Pilze, p. 212 (1884). Sydow, Monogr. i. 364. Fischer, Ured. Schweiz, p. 123, f. 94. [Spermor/ones. Hypophyllous, numerous, generally scattered over the whole surface among the gecidia. zEcidiospores. iEcidia hypophyllous, or a few epiphyllous, uniformly scattered, cup-shaped, with a torn white revolute mar- gin ; spores globose or ellipsoid, punctate, yellow, 16—24 /*.] Uredospores. Sori amphi- genous, scattered or occasion- ally circinate, on minute paler spots, small, rounded, cinna- mon ; spores globose to ellipsoid, echinulate, yellow-brown, 19—24 x 17—22 n, with three, four, or even five germ-pores. Teleutospores. Sori amphigenous, minute, scattered, round- ish, on the stems often larger and oblong, occasionally confluent, covered by the epidermis, at length naked, blackish-brown ; spores oblong to clavate, rounded at both ends, not thickened above, hardly constricted, smooth, brown, 25—44 x 16—30 yu,; pedicels hyaline, thin, short, deciduous. On Bupleurum tenuissimum. Very rare. Uredo- and teleutospores, Walton-on-the-Naze, August, 1887. (Fig. 137.) The uredospores were found in small quantities among the teleuto- spores. Fischer says that the affected pla
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