368 THECOPSORA 
summit with a pore; spores elongated-ellipsoid or clavate, 
provided with distant and pointed warts, yellowish, 26—35 x 
1416; epispore rather thick, without perceptible germ- 
pores. 
[Leleutospores. Sori hypophyllous, adjoining the uredo-sori, 
inconspicuous, flat, subepidermal, forming an 
even layer of laterally united cells; spores 
columnar or oblong, 24—28 x 10—12 py; 
epispore colourless, uniformly thin (1 «)— 
(description after Dietel).] 
Fig. 275. P. Pyrolae. On Pyrola minor, P. rotundifolia. May 
Uredospores, on P. October, uredospores only; Scotland, 
rotundifolia. 5 ‘ 
Ludlow, ete. (Fig. 275.) 
Teleutospores have been met with by few observers ; previous to their 
discovery, it was uncertain in what genus the fungus should be placed. 
It may possibly be hetercecious. The uredospores are often more coarsely 
warted at one end, though this is not invariably the case. Fischer figures 
the cells of the peridium round the pore as furnished above with pointed 
warts, of which one is distinctly longer than the others: those cells are 
enormously thickened on the lower wall. 
DisTRIBUTION: Europe, North America. 
THECOPSORA Magnus. 
Hetercecious or ecidia unknown. 
Teleutospores intracellular, occupying and filling the epi- 
dermal cells of the leaves, united into a brown crust, other 
characters as in Pucciniastrum. Uredo as in Pucciniastrum. 
Aicidia hemispherical, with a thick brown peridium (so far as 
known); scidiospores verrucose, with a narrow, thin, smooth 
strip down one side (? always). 
1. Thecopsora Padi nov. comb. 
Licea strobitina A. et S. Consp. p. 109, pl. 6, f. 5. 
Phelonitis strobilina Pers, ; Cooke, Handb. p. 409, f. 141. 
Perichuena strobilina Fr. ; Greville, Scot. Cr. Fl. pl. 275. 
eAvidium strobilinum Wint. Pilze, p. 260; Plowr. Ured. p. 266. 
