Micropiiccin ia . 199 



young seedlings will produce a crop of iccidia in the autumn, but as 

 a rule they do not do so until the following spring, after the mycelium 

 has hybernated in them during the winter. I have sown the seeds 

 from aecidiiferous plants, in which the aecidiospores were produced 

 upon the receptacle ; most of these seeds failed to germinate, but 

 those which did produced healthy plants. I do not find the spermogonia 

 at all frequently ; as a rule they are absent. 



Puccinia smyrnii. Corda, 



.■Ecidiosporcs — Pseudoperidia hypophyllous or cauline, yellow, at 

 first closed hemispherical, then bursting at the apex and be- 

 coming cupulate, edges not torn. Spermogonia epiphyllous. 

 Spores oval or oblong, golden yellow, finely echinulate, 25-30 

 X 10-15/A. 



Teleutospores — Sori small, pulverulent, scattered, black, hypophyl- 

 lous. Spores ovoid obtuse or subpyriform, constriction slight 

 or absent, upper cell generally the larger, outline irregular from 

 the epispore being covered by very large discrete tubercles, 

 rich brown, 30-50 X 20-25/^. Pedicels hyaline, short. 



Sy?wnym. 

 Puccinia smyrnii. Corda, vol. i. fig. 67. B. and Br., Ann. 

 Nat. Hist., No. 469. Cooke, "Hdbk.," p. 503 ; "Micro. Fungi," 

 4th edit., p. 209, t. 3, figs. 55, 56. 



Exsiccati. 

 Cooke, i. 320; ii. 440. Vize, "Fungi Brit," 22; "Micro. 

 Fungi Brit.," 562, 563. 



On Smyrnium olusatrum. 

 ^cidiospores. May and June. 

 Teleutospores, June and July. 



V. MICROPUCCINIA. Schrot. 



Having teleutospores only, which do not germinate until after a period of 

 rest. 



Puccinia betonicse . (Alb. and Schw.) 



Teleutospores — Sori dark brown, numerous, small, roundish, con- 

 fluent, covering the whole surface of the leaf. Spores broadly 



