HYSTERANGITJM. HYMENOGASTER 25 



8. H. nephriticum Berk. i>e<po9, the kidneys. 

 Pe. 1-2-5 cm., white, globose, or globoso-depressed, springing from 



a much branched, white mycelium, tomentose, peridium rather thick, 

 elastic. Gleba pinkish, then pale blue, or grey, and finally greenish, 

 cells minute, radiating from the base, contracting into a very small 

 space when dried. Spores greenish olivaceous in the mass, drab colour 

 under the microscope, oblong elliptical, pointed at both ends, or blunt 

 at the one end, 10-12 x 4/z. Smell at first like that of Helianthus 

 tuberosus, then disagreeable. Gregarious, sometimes confluent. 

 Buried in the ground. Woods. May Feb. Uncommon, (v.v.) 



9. H. Thwaitesii B. & Br. G. H. K. Thwaites. 



Pe. 2 cm., white, becoming rufous when touched, subglobose, or 

 slightly irregular, slightly silky, peridium membranaceous. Gleba 

 brownish olive. Spores pale olive, oblong, apiculate, 25-30 x 7-9/x. 

 Buried in the ground. Woods. Aug. Oct. Rare. 



H YMENOG ASTRACE AE . 



Surface of peridium sometimes traversed by mycelial strands. 

 Gleba cells arising from the peridium, sometimes empty at first, 

 with, or without, a sterile base. Spores coloured, elliptical, fusiform, 

 globose, smooth, or echinulate. Subterranean or superficial. 



Hymenogaster (Vitt.) Tul. 

 (vfirjv, a membrane; jacrrr^p, belly.) 



Gleba cells empty at first, sterile base well-developed. Basidia 

 generally with two sterigmata. Spores coloured, elliptical to fusiform, 

 with a prominent papilla. Subterranean, or superficial. 



10. H. Klotzscnii Tul. Tul. Fung. Hypog. 1. 10, fig. 12. J. F. Klotzsch. 

 Pe. H-5 cm., dirty white, obovate, or subglobose, adpressedly 



tomentose, base fibrillose. Gleba pallid, becoming rufous ochre. 

 Spores pale brown, minutely tuberculose, broadly elliptic, ends 

 obtuse, 18-20 x 11-13/u,. Pot in greenhouse, and sandy soil. Dec. 

 Bare. 



11. H. muticus Berk. Tul. Fung. Hypog. t. 10, fig. 7. 



Muticus, curtailed. 



Pe. 1-5-2-5 cm., white, then tinged with brown, globose, scarcely 

 lobed, at length much cracked. Gleba pale yellow-brown, cells loose, 

 small. Spores pale brown, obovate, oblong, very obtuse (figured by 

 Massee as apiculate at both ends), 18-21 x 10-12/x. Smell slight. 

 Under trees. Nov. Rare. 



