2l6 ROCHESTER ACADEMY OF SCIENCE. [Mar. 24, 



yellow. The pigment is not soluble in water, ether, benzine or 

 alcohol. A second coloring matter, .xylindein, has been isolated by 

 Rommier. I have made some experiments with xylochloric acid as a 

 stain for microscopic sections and find it unsatisfactory, the staining 

 not being clear, uniform or well differentiated. 



MoLLisiA Fr. 



174. MoUisia cinerea (Batsch) Karst. Pez. in Peck, 28th 

 Rep., p. 66. Sacc. Syll. Disc, p. 336. On dead limbs lying on the 

 ground. March, 1898. 



Pyrenopeziza Fuckel. 



175- Pyrenopeziza Tamaricis (Roum.) Sacc. Sacc. Syll. 

 Disc, page 371. On dead branches of Tamarix Africana, African 

 Tamarisk, at Spring-brook Farm, the residence of Hon. M. L. Parker, 

 Yates, N. Y. April, 1895. New to the State. 



Tapesia Pers. 



176. Tapesia sanguinea (Pers.) Fuckel. Peck, 33rd Rep., 

 p. 31. Sacc. Syll. Disc, page 371. Phill. Br. Disc, p. 281. On 

 fallen branches. Woods. Lyndonville. May, 1887. The base of 

 the fungus surrounded by a blood-red tomentum, and the wood on 

 which it grows stained red. The red pigment is due to xylerethrinic 

 acid (Bachmann), and is soluble in ether, alcohol, chloroform, etc., 

 and does not afford a very characteristic spectrum. 



177. Tapesia Rosae (Pers.) F'uckel. Peck, 43 Rep., p. 33. 

 Sacc. Syll. Disc, p. 374. Phill., 1. c , page 279. On stems of some 

 wild rose. \'ates. 



175. Tapesia Rhois n. sp. Subiculum dark brown, broadly 

 effused, felted, indeterminate; threads of the subiculum 3-4 /^ long, 

 unbranched, without conidia, brownish; cups scattered or gregarious, 

 I to 2 millimeters broad, cup-shaped, then expanded and irregular; 

 disc dull black to dark-slate color, with a silver-white margin; asci 

 oblong clavate, 50 to 60 // in length; sporidia hyaline, continuous, 

 oblong, straight or curved, 7-13 x 2-3 //. On fallen branches of 

 Sumac, Rhus i^labra L. , Ridgeway, N. Y. May, 1895. The 

 hymenium is occasionally pitted. This can be separated from pale 

 varieties of Tapesia fusca by its simple, continuous sporidia, which 

 are not guttulatc, nor pseudo-septate, even when viewed with high 

 powers (Bausch & Lomb 1-12). It is possible that the tapesium is 

 formed of the altered substance of the inner bark, 



