286 



PUCCINIA 



but 1 have found on Arrhenatkerum on many occasions teleutospores and 

 uredospores which seem to be identical with those of this species, though 

 the former are, in my specimens, often irregularly three- or four-celled. 



Distribution: Central and Northern Europe, Turkestan. 



loT. Puccinia paliformis Fckl. 



Puccinia paliformis FckL Symb. Myc. p. 59, pi. ii. f. 17. Plowr. [Jred. 

 p. 203. Sacc. Syll. vii. 731. Sydow, Monogr. i. 759, f. 534. 

 Fischer, Lied. Schweiz, p. 264, f. 200. 



Teleutospores. Sori on the leaves and culms, scattered, 



minute, roundish or oblong, up t<> 

 I mm. long, pulvinate, surrounded 

 by the cleft epidermis^ black- 

 brown; spores clavate, usually 

 t runcate above, more rarely round- 

 ed or conically attenuate, much 

 thickened (10 --16 ft), hardly 

 constricted, tapering downwards, 

 smooth, pale-brown. 40 — 56 x 10— 

 22 fi: pedicels hyaline, persistent, 

 about as long as the spore. 



ery rare. September and October, 

 (Fig. 217.) 



There is much doubt about this fungus ; it was suspected by Winter, 

 on account of the likeness of its teleutospores to those of P. Caricis, that 

 the original specimens on which the species was founded grew not on 

 Koeleria, but on Care.r. It seems to have been recorded only twice, once 

 by Morthier in the Jura, in spring on old leaves of the previous year, and 

 once as above. The three figures quoted in the synonymy agree fairly 

 well, but appear to have been all taken from the same material, viz. that 

 gathered by Morthier, which according to Sydow may well be Koeleria and 

 _jaot Carex. I have examined the specimens, preserved in Herb. Kew, 

 gathered by Prof. Trail ; they are undoubtedly Koeleria, they have split 

 .sheaths and, though not in flower, agree perfectly with specimens of 

 Koeleria cristata from the Highlands, in the same herbarium. But they 

 bear uredospores in slightly swollen epiphyllous yellow patches, sunken in 

 the leaf (these are mentioned by Prof. Trail in the Scottish Naturalist, 

 1883, p. 85) ; therefore the fungus cannot be P. paliformis as described by 

 Fuckel, but is probably P. longissima, Schrot. I found the uredospores oval 

 or obovate, pale brownish-yellow, sparsely echinulate, 23 — 24x17 — 18 /x. 



Fig. 217. P. paliformis $). Uredo- 

 spore and teleutospores, from 

 the specimens collected by Trail. 



On Koeleria cristata. V 



near Aberdeen (Prof. Trail). 



