ELVELLACEI. 343 



10. H. echinatum, P. ; peridiuoi turbinate, substipitate 

 pale umber or yellowish, rough with rather distant stout 

 spiny warts ; spores echinulate. 



In woods. Berks. 



Spores echinulate, •000.2--000,2o" dia. 



78. SCLERODERMA, P. (p. 303). 



1. S. vulgare, Fr. (p. 303). 



2. S. Bovista, Fr. (p. 303). 



3. S. verrucosum, P. (p. 303). 



4. S. geaster, Fr. ; sessile ; subglobose ; growing pallid ; 

 peridium dehiscing at the apex in stellate lacinise; inner 

 mass dirty purplish black ; spores globose, verrucose. — 

 Seem. Jour. Bot. ix. t. 116; Trans. Woolh. CI. 1870, p. 252; 

 Icon.; Mich. /. 99, /. 1. 



On the ground, near Herefoid. 



79. POLYSACCUM, D.C. (p. 304). 

 1. P. olivaceum, Fr. (p. 804). 



80. CENOCOCCUM, Fr. 

 1. C. geophilum, Fr, 



Family V.— ASCOMYCETES. 



Order 23. ELVELLACEI. 



242. MORCHELLA, Dill. (p. 358). 



A. Pihus adnate at base. 



1. M. esculenta, P. 



Var. rotunda, P. ; colour whitish-pallid, when dry struw- 

 colour or pale yellow. 



