1885.] 



NEW SPECIES OF FUNGI. 



8!) 



with innate, granular, minute rudimentary warts above, smootlier and 

 subplicate below, with strongly developed, yellowish roots forming a 

 mass as large as the i)eridium itself, and which remain permanently 

 fixed in the ground after the peridium itself has broken away. 



In loose sand. Willow Grove, N. J., Oct. 1883. Abundant. Differs 

 from S. Geaster, Fr., in its smaller size, yellow color, thinner peridium, 

 larger spares and more strongly developed roots. From vulgare, Fr., 

 it differs in its stelltite dehiscence and subterranean mode of growth. 



AlYCENASTBUM OregonejS'Se, E. & E.— Semi-subterranean, globose, 

 coriaceous, milk-white and nearly smooth at first, becoming somewhat 

 mealy with a few very faint rudimentary spines or imperfect tubercles 

 at the apex, 4—6 cm. in diameter, subplicate belovf with a single short, 

 cord-like root. Peridium brown and smooth when mature, rupturing 

 irregularly above. Capillitium snuff-brown or grayish, collected in 

 small, loose, globular masses which consist of stout, much branched 

 threads, the branches running out with free ends which are more or less 

 undulate or crisped, or occasionally subtuberculose or siiowing here and 

 there rudimentary spines. The larger or main branches of the capilli- 

 tium are 10—14 p- thick. Spores globose, snuff color, 8i— 4i p-, smooth 

 with only the rudiment of a pedicel. 



In grassy ground. Coos Co., Oregon. "Appearing a few days after a 

 rain." May and June, 1884, W. S. Carpenter, no. 64. Sent also from 

 Ottawa, Canada, by Prof. Macoun, and from northern Michigan by Prof. 

 F. E. Wood. 



In Grevillea, vol. 13, p. 6, Dr. Cooke proposes for this and the follow- 

 ing species together with M. lycoperdioides, Cke., and M. leiospermum, 

 Mont., the subgenus SterbecMa to include the species with smooth spores 

 and capillitium without spines. 



Mycenastrum Ohiense, Ell. & Morgan. — Peridium subgiobose 

 (3— 3i cm.) coriaceous, olive-brown when mature, rupturing irregularly 

 above, surface densely granulose, more coarsely so above, plicate 

 below with a single, short, stout root and filled with the mass of 

 clay-colored or grayish spores and capillitium which is attached to the 

 inner surface of the peridium on all sides and runs gradually into the 

 sterile cellular base which occupies i— i of the cavity. Spores nearly 

 hyaline (under the microscope), ovate-globose, smooth, 3— 3i p in their 

 longer diameter, on slender pedicels which are rather longer than the 

 spores. The capillitium as in the preceding species is collected more or 

 less distinctly into little loose balls (something as in Arachnion album, 

 Schw.), main threads 6—7 p thick, branches attenuated and showing 

 here and there rudimentary spines and tubercles. Quite distinct from 

 the preceding species in which, besides the other diiferences, the sterile 

 base is almost obsolete. 



Sent first from Mt. Carmel, 111., by Dr. J. Schenck, Oct. 1881, and 

 since found more abundantly in Ohio by Prof. A. P. Morgan who has 

 also received from Florida what appears to be the sterile base of t his 



