

BOVISTA. MYRIOSTOMA 39 



Spores brown, subglobose, or oval, 6-7 x 5-6/i, with long, hyaline 

 pedicels. Capillitium brown, thick walled, branched, branches pointed 

 at the ends, 12-16/z in diam. Pastures and heaths. Jan. Dec. 

 Common, (v.v.) 



52. B. olivacea Cke. & Massee. Olivacea, olive colour. 

 Pe. 3-5 cm., white, or ochraceous, globose; exoperidium very thin, 



fugacious; endoperidium concolorous, thick, soft, becoming brittle 

 and breaking away in patches upwards. Gleba citron, then olive, 

 dense.' Spores pale yellow, globose, 5/z, sometimes pedicellate. 

 Capillitium pale, thin, flaccid. Pastures. Sept. Rare. 



53. B. ovalispora Cke. & Massee. Ovalis, oval; a-Tropd, seed. 

 Pe. 5-6 cm., whitish, or ochraceous, subglobose ; exoperidium break- 

 ing away in patches above, subpersistent towards the base; endo- 

 peridium dull lead colour, thin, flaccid, smooth. Mouth apical, 

 irregular. Gleba umber. Spores brownish umber, with a narrow 

 hyaline border, elliptical, 6 x 4 5/*, with long, stout, hyaline pedicels. 

 Capillitium umber, thick walled, much and vaguely branched, taper- 

 ing to long slender tips, 12-16/A in diam. Lawns. Rare. 



Myriostoma Desv. 



(livpios, countless; ar6/j,a, mouth.) 



Peridium subglobose; exoperidium consisting of two layers, a 

 fibrous, or mycelial layer, and a pseudo-parenchymatous layer, thick, 

 fleshy-coriaceous, splitting at maturity from the apex downwards into 

 several star-like lobes which become refiexed; endoperidium membra- 

 naceous, then papyraceous, thin, supported on several short stems, 

 dehiscing by many apertures, or mouths. Capillitium threads simple, 

 rarely branched, tapering at the end. Spores coloured, minutely 

 verrucose, globose. Superficial. 



54. M. coliforme (Dicks.) Cda. (= Geastrum coliforme (Dicks.) Pers.) 



Dicks. PL Crypt. Brit. t. 3, fig. 4, as Lycoperdon coliforme. 



Colum, a strainer ; forma, shape. 



Exoperidium 7-10 cm., ochraceous, round, covered with large, 

 angular dark brown scales, splitting into 4-7 sharp pointed lobes, 

 divided almost up to the middle, reflexed, seldom inflexed; endo- 

 peridia lead colour, or brownish, round, compressed, with a silvery 

 sheen, minutely warted, supported on numerous, slender, angular, 

 or cylindrical, sometimes branched pedicels, mouths numerous, cili- 

 ated. Spores umber brown, verrucose, globose, 4-6/M. Columellas 

 numerous, filamentous, branched, or unbranched. Capillitium pale 

 brown, simple, flexuose, thick walled, pointed at the ends, rarely 

 branched, 3-4jU in diam. Sandy soil. Oct. Rare, (v.v.) 



