186 



PUCCINIA 



I find tin- septum of the teleutospores almost always comparatively l>road 

 and dark, far more so than in the majority of Puccinias. 



Distribution : Kun>pe generally. 



58. Puccinia Bulbocastani Fckl. 



Mcidium. Bulbocastani Cumino, Fung. Vail. Pis. lso4 — 5. 



./-.'. llinu'i DC. Syii. \>. ")l. Cooke, Eandb. p. 540 p.p. ; Micr. Fung. 



p. 196. Plowr. Ured. p. 270(?). 

 Puccinia Bulbocastani Fckl. Symb. Myc. p. 52. Cooke, Micr. Fung. 



p. 209. Sydow, Monogr. i. 363. Fischer, Dred. Schweiz, p. 133, 



f. 100. 



Spermogones. Few, scattered amongst the secidia, pale- 

 yellowish. 



.h'ridiosjjures. .Ecidia rarely on the 

 leaves, hypophyllous, more often on the 

 petioles and stems, densely crowded, caus- 

 ing considerable hypertrophy and curva- 

 ture, between cup-shaped and pustulate, 

 whitish, with a white irregularly torn 

 margin ; spores delicately verruculose, 

 yellowish, 15 — 22 fx. 



Teleutospores. Sori amphigenous, 

 scattered, minute, roundish, sometimes 

 on the petioles confluent and elongated, 

 long covered by the epidermis, black: 

 spores ellipsoid to obovate-oblong, gener- 

 ally rounded at both ends, not thickened 

 above, hardly constricted, minutely reti- 

 culate, brown, 25 — 42 x 14 — 24/m: pedicels 

 hyaline, thin, deciduous. 



On Co ft hi (Bh ilium) Bulbocastanum. 

 Very rare. Dunstable (W. G. Smith). 

 (Fig. 134.) 



This species has no uredospores. Plowright confused together this 

 and the Puccinia tumida on Conopodium denudatum (see his synonymy 

 on pp. 206, 270). The latter species has no secidia ; this partly explains 

 his remarks that he was unable to obtain any evidence of the connection 

 between the secidium and the Puccinia. Nevertheless, it appears not yet 



Fig. 134. V. Bulbocas- 

 tani. Whole plant of 

 C. Bulbocastanum, vtith 

 aecidia. nat. size. (Dun- 

 stable, April, 1*96.) 



