The Scottish Naturalist. 33 



2268. P. oxyrise Fckl. Svmb. Myc. Nachtr. III./. 14. Rabenh. 



Krypt. Fl. No. 276. 



Sori naked, usually oblong, on both surfaces of leaves 

 and leaf stalks, in irregular groups. Uredo spores 

 rounded or pyriform, light brown, surface covered with 

 fine outgrowths, *o23- , o3 x *o2- , o26 mm. Puccinia 

 spores brown, elliptic or oblong, somewhat constricted in 

 the middle, rounded or narrowed at the base, rounded or 

 pointed and slightly thickened at apex, smooth, on 

 colourless stalks. 



On Oxyria reniformis. 

 East. — — — Dee — — 



West. — — — Ross 



Skye. Dr. B. White. Braemar. Professor J. W. H. Trail. 



Europe. 



* P. stellariae. Adopted by Fuckel. See Mycol. Scot. Supp. 

 Scot. Nat. Vol. VI. p. 119. Rev. Dr. Keith, 



* P. lapsanae Fckl. This so-called species has been gathered 

 by Rev. Dr. Keith and by Professor Trail on Lapsana communis. 

 It should probably be included under P. compositarum Sch. 



2269. Protomyces pachydermus Thiim. Hedwigia, 1874, 



/. 97. 



Forming elongate or confluent swellings in the leaf 

 stalk or midrib (or rarely in the lamina) of the leaves. 

 Spores scattered in the intercellular spaces throughout 

 the substance of the part, but chiefly in the outer layers. 

 Rounded or elliptical, thick-walled •i4- , 28 mm. diam. (in 

 Germany '28-*36 mm.). Epispore smooth, pale brown. 



The warty swellings and form of spores are much as in 

 P. macrosporus, but the spores are not over § the diameter 

 of the spores of P. macrosporus, are relatively thicker- 

 walled, and are more scattered through the tissue. 



On Taraxacum officinale. 

 East. — — — Dee — — 



West. — — — — 



Aberdeen. Professor J. W. H. Trail. 



2270. Synchytrium anemones Woron. Pot. Zeitung. xxvi. 



(1868),/. 100. 



Forms dark violet, or almost black, hemispherical 

 warts, the size of a pin's head, which are gregarious 

 and sometimes confluent. In the centre of each is a 

 spherical or resting spore, the cell wall of which is dark 

 brown and warty. 



c 



