—— 
311 
Tilletia Wilcoxiana, Griffiths in Bull. Torr. Bot. Club, xxxi., 
1904 8. 
A specimen of Stipa eminens var. Andersonit, Vasey, from 
Poa ‘Ocalicn Island, California, preserved in the Kew Herba- 
rium, shows what is undoubtedly ihe mature state of this fungus, 
which was described from immature material. ‘The host plant 
and the external characters of the smut agree with the descrip- 
tion of 7. Wilcoriana. As to the spores, however, the following 
amended description is necessary :— 
Spores cinnamon in the mass, pale yellow to clear pale cinna- 
mon by transmitted light, very thick-walled. The spore-wall 
consists of three layers. The outer wall is very thin, hyaline, 
and apparently of a slightly mucilaginous nature, as it swells 
slightly and therefore becomes more visible by the action of 
potassium hydrate. The inner wall is also very thin. Between 
Mature spores. x 850. 
them is a thick middle wall, brownish in colour, and sculptured 
in a reticulate manner. The main ribs of the reticulum are 
arranged more or less spirally, and are connected by much 
smaller and less distinct cross ribs. n optical section the 
seyret give the ete of coarse warts at the circumference 
the spore. The mature spores are 18-20 bh diameter, the 
total thickness of tie wall being about 2-2-5 p 
Uromyces Secamones, Wakef. 
Sori “gcowenngg? shout hypophylh, a firmi, degen: 
0-5-0:75 mm. diametro, interdum con entes, maculis dis- 
tinctis ‘aA 3 mm. diametro circinatim dis hae sitis. T'eleutosporae 
brunneae, laeves, subglobosae, ellipsoideae, vel subclavatae, apice 
a 
Teleutospores. x 850. 
