ON UMBELLIFER.E 



193 



On Angelica silvestris. Not common. Uredospores, June 

 and July ; teleutospores, July— November. (Fig. 140.) 



Distinguished especially by the very bright yellow primary uredo-sori, 

 and by the slightly larger uredospores than in allied species. Semadeni 

 proved that it would grow also on Archangelica, but not on sEthusa 

 Cynapium or Peucedanum palustre. The primary uredo-sori should be 

 compared with the eecidia of P. Smyrnii. P. Apii is also closely allied, 

 but differs in the possession of a true cup-shaped secidium. 



Distribution : Central and Northern Europe, Turkestan. 



65. Puccinia bullata Wint. 



Uredo bullata Pers. Obs. Myc. i. 98 p.p. 



P. bullata Wint. Pilze, p. 191 p.p. Sacc. Syll. vii. 634 p.p. Sydow, 



Monogr. i. 403 p.p. Fischer, Ured. Schweiz, p. 119, f. 91 a. 

 P. Umbelliferarum and P. bullaria, p.p. 



Spermogones. Pale yellowish. 



Uredospores. Primary sori chiefly on the swollen nerves 

 and petioles, elongated, as much as 

 3 cm. long, dark-cinnamon, secondary 

 hypophyllous or rarely epiphyllous, scat- 

 tered, minute, punctiform, brown; spores 

 globose to obovate, echinulate, brown, 

 apex more or less thickened, 25 — 40 x 

 18 — 28 /a, with three or four germ-pores 

 with swollen caps. 



Teleutospores. Sori similar, often 

 confluent on the stems, long covered by 

 the epidermis, blackish-brown ; spores 

 oblong to obovate, rounded above, scarcely thickened, hardly 

 constricted, slightly narrowed below, smooth, uniformly brown, 

 30 — 45 x 18 — 24 fi ; pedicels hyaline, rather stout, deciduous. 



On Peucedanum palustre. Shrapwick Bay, Somerset, 1883 

 (H. B. Waterfall). (Fig. 141.) 



This species is placed temporarily in the collective group, P. bullata 

 Wint. All the forms which were included under that head by Plowright 

 are now separated on morphological or biological grounds, but nothing is 

 known as yet about the Puccinia on Peucedanum palustre, from the latter 

 point of view. It is a close ally of P. Silai. 



G. u. 13 



Fig. 141. P. bullata. Te- 

 leutospores on Peucedanum 

 palustre, Shrapwick Bay. 



