TRICnOGASTRES. 301 



shire. My plant has an irregular toothed mouth. An au- 

 thentic specimen of Pcrsoon is G. fimbriatus, and so perhaps 

 are some of Schmidel's figures. 



9. G. hygrometricus, P. ; outer peridium multipartite, 

 thick, rigidly inflexed when dry ; inner sessile, subreticulate, 

 bursting irregularly. — Bolt. t. 179. 



On the ground. Very rare. Swain's Moor, near Halifax. 

 The hard, horny outer peridium, and scurfy or reticulate, 

 irregularly bursting inner peridium, readily distinguish this 

 species, which, though so rare here, is common on the Con- 

 tinent. 



65. BOVISTA, Dill. 



Peridium like paper (or pasteboard), persistent. Bark dis- 

 tinct, at length shelling oft'. Capillitium equal, attached on 

 all sides to the peridium. Spores pedicellate. 



1. B. nigrescens, P.; subglobose; peridium tough, paper- 

 like, at length blackish-umber; bark even, entirely evanes- 

 cent ; capillitium thick, purple-brown, as well as the spores. 

 (Plate 20, fig. 5.) 



In pastures. Very common. Larger than the next. 



2. B. plumbea, P. ; globose ; peridium paper-like, flexible, 

 lead-coloured ; bark persistent at the base ; mouth narrow ; 

 capillitium and spores brown. (Plate 20, fig. 6.) 



In pastures. Even more common than the last. 



66. LYCOPERDON, Town. 



Peridium membranaceous, vanishing above or becoming 

 flaccid. Bark adnatc, subpcrsistent, breaking up into scales 

 or warts. Capillitium adnate to the peridium and to the 

 sterile base. 



