176 THE GASTEROMYCETES OF THE UNITED STATES AND CANADA 



hairs are worn off distinctly striate above; inner surface variable in color, pale to nearly 

 black, glabrous, shining, distinctly striate; mouth closed by a thin, pale, smooth epi- 

 phragm that breaks and withers away at maturity. Peridioles confined to lower half 

 of the cup, 1.5-2 mm. in diameter, usually attached to the cup by a strong, very elastic 

 cord. Tunica very thin (ll-30/i), often absent in places, but usually obvious, so that 

 the peridioles appear gray or silvery brown; composed of light brown, collapsed threads; 

 black layer thin (about 20/*), dense; sclerotic layer 110-365/j thick, its cells vaguely 

 outlined and not separable as units on crushing. 



Spores (of No. 2432) scattered as usual in the central horny tissue, elliptic, hyaline, 

 rather thick-walled, 8.3-12 x 15-22/1. When young the wall is very thick, becoming 

 thinner as the spores mature. Basidia long-clavate, 6.8-7.8/* thick, with 4 sessile 

 spores. 



Not rare on dead wood and other vegetable matter. The young plants have 

 rounded hairy tips, the peridium expanding above and the hairs seceding so as to expose 

 the thin diaphragm only a little while before full maturity. 



For cytological information by Maire covering this and other species, see under 

 Scleroderma aurantium. 



Illustrations: Bolton. Hist. Fungi Halifax 3: pi. 102, fig. 2 (as Peziza strialus). 

 Dufour. Atlas des Champ. Comest. et Ven., pi. 71, No. 160. 1891. 

 Eidam. 1. c, pi. 10, figs. 1-22. 

 Fries, Th. C. E. Sveriges Gasteromyceter, fig. 34. 

 Gillet. Champ. Fr. (Gasteromycetes), pi. 1. 

 Hard. Mushrooms, fig. 441. 

 Hesse. 1. c, pi. 13. 

 Hollos. 1. c, pi. 28, figs. 7-10. 



Michael. Ftthrer f. Pilzfreunde 2: No. 206. 1918 (Second edition). 

 Micheli. Nova Plant Gen., pi. 102, fig. 2. 

 Murrill. Mycologia 3: pi. 40, fig. 11. 1911. 

 Nees von Esenbeck. Syst. Pilze. Schw., pi. 13, fig. 132 A-B. 

 Walker. 1. c, pi. 4, figs. 34-48. 

 White. Bull. Torr. Bot. Club 29: pis. 14 and 18. 1902. 



68. In ravine northeast of Tenney's on twigs, October 4, 1911. 

 2432. On top of a rock wall by President's house on twigs and leaves, July 26, 1916. 

 5280. Deciduous wood in Arboretum, July 5, 1922. Spores 9.3-10.4 x 15-20.5/1. 

 Also Nos. 2987, 5367, 5911. 



Asheville. Beardslee. 



Blowing Rock. On log of deciduous tree, Aug. 1922. Coker, coll. (TJ. N. C. Herb., No. 5590). 

 Buncombe Co. Standley and Bollman, coll. (U. S. Nat'l. Herb., as Cyathia hirsuta). 

 Haywood Co. On rotting leaves, Aug. 2, 1926. Totten, coll. (U. N. C. Herb.). Spores 8-9.5 i 

 12.5-17/*. 



Alabama. Mobile. Mohr, coll. (U. S. Nat'l. Herb.). 

 Tennessee. Elizabethtown. Murrill, coll. (N. Y. Bot. Gard. Herb.). 

 Virginia. Peaks of Otter. Murrill, coll. (N. Y. Bot. Gard. Herb., no name). 

 Pennsylvania. Trexlertown. Lloyd, coll. (N. Y. Bot. Gard. Herb.). 



Ohiopyle. Murrill, coll. (N. Y. Bot. Gard. Herb.). Spores elliptic, 7-9.3 x 11.5-20/1. 

 New York. Green Co. On twigs. Wilson, coll. (N. Y. Bot. Gard. Herb.). 



Massachusetts. Davis, coll. (N. Y. Bot. Gard. Herb, and U. N. C. Herb.). Spores 9.2-11.2 x 13-15/1. 

 Ohio. Lloyd, coll. (N. Y. Bot. Gard. Herb.). 



