British Gastromycetes . 47 
Hymenogaster tener , Berk., Ann. Nat. Hist, xiii, 349, 
and xviii, 75 ; Berk, Outl. 29 6 ; Tul., Fung. Hypog. p. 72, t. i, 
f. 4, t. x, f. 1 ; Cke., Hdbk. n. 1061 ; Wint, Kr. FI. 877 ; Sacc. 
Syll. vii, p. 174. 
Hymenogaster argenteus , Tul., Giorn. Bot. Ital. ann. 1, 
ii, part 1, p. 55 - (Type in Herb. Berk. Kew, n. 4467.) 
Exs. — Hymenogaster lilacinus , Berk., Brit. Fung. fasc. 4, 
n. 305 (not H. lilacinus , Tul.) ; Rab., Fung. Eur. 1320. 
In woods. Not uncommon. Chudleigh ! Hanham ! King’s 
Cliffe ! Rudloe ! Hazlebeech ! Bristol ! Eltham Grove ! 
Wraxall ! Portbury, Somerset! — France. 
About the size of a bean or large hazel-nut ; globose, soft 
and tender, white and silky externally; peridium thin, at 
length dingy, at first white within, but soon acquiring a deli- 
cate pink tinge, which, as the spores ripen, changes to an 
umber grey. Absorbing base white. Very distinct, . . . small 
like that of Laciarius theiogalus. (M. J. B., 1 . c.) 
Hymenogaster Thwaitesii, B. and Br. (Fig. 25). Small, 
globose, firm, dirty-white, here and there stained ; substance 
brown ; spores globose, rather rough, apex with a minute 
papilla, brown, 11-13 diameter. 
Hymenogaster Thwaitesii , B. and Br,, Ann. Nat. Hist., 
xviii. p. 75; Berk., Outl. 29 7; Cke. Hdbk. n. 1062; Tul., 
Fung. Hypog. 71, t. x, f. 11; Sacc., Syll. vii, p. 174. 
Portbury ! 
This species is proposed as new with the sanction of Messrs. 
Tulasne, who examined a slice prepared in fluid by Mr. 
Thwaites. The spores are far more globose than in any other 
species, and are either quite obtuse or minutely apiculate. 
The inner membrane of the spores often contracts so as to 
present a very singular appearance. A few elongated spores 
are mixed with them, but the normal form is globose ; indeed, 
except the normal form be taken into consideration it would 
be impossible to draw up technical distinguishing characters 
of any Hymenogaster , as there are always some irregular 
spores mixed with those which are peculiar to the species. 
