ON UMBELLIFER.E 



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, Algeria. 



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 plants usually bear tecidia on every 

 leaf, the leaves are narrower and paler, and the plants do not flower ; the 



Fig. 137. P. Bupleuri. Teleuto- 

 spores (Walton-on-the-Naze). 



