British Clavariae. A. D. Cotton & E. M. Wakefield. 179 



structure composed of hyphae 8-10 {-12) jx in diameter, with 

 occasional inflations, slightly septate, loosely filamentous, 

 irregular in transverse section. Basidia long, conspicuous, 

 35-50 (-70) X 6-iO/A, contents finely granular; sterigmata 2. 

 Spores copious, smooth, hyaline, subglobose or obovate, 

 apiculate at the base, 7-10 x 6-8/x, with one large oil- 

 globule. 



Habitat. On the ground in woods, etc. Common and 

 edible. 



Very variable in form but known by its grey colour and 

 large spores, the former however being variable in tint. See 

 also the notes under C. cristata. 



C. CINEREA var. GRACILIS Rca , in Trans. Brit. Myc. Soc. vi. 

 1917, p. 62. 



Distinguished from the type form by its larger size, longer 

 and more slender stem, with numerous slender branches and 

 branchlets. Spores 9 x 8/i, with a large central gutta. 



Habitat. On bare soil in woods. Caughley, Salop, and 

 Shrawley, Worcestershire. 



12. C. GiCxASPORA Cotton, in Naturalist, 1907, pp. 97-98. 



Illustrations: None published. 



Plants branched, caespitose but distinct at the base, or 

 solitary, small, up to 3 cm. high, tough, greyish with a tinge 

 of yellow, whitish at base of stem, smell and taste absent. 

 Stem slender, not very distinct, i cm. long or shorter. Branching 

 irregular, sometimes almost palmate, branches erect, occasion- 

 ally forked, often wrinkled, solid, terete or compressed, much 

 compressed at the acute axils, ultimate branches attenuated, 

 apices blunt. Internal structure of densely packed hyphae 

 4-4-5 /A in diameter, forming a firm tough tissue, rather horny 

 when dry. Basidia large, 60-70 x I5)u., contents finely granu- 

 lar; sterigmata 4, rather stout, 8-io/x long. Spores smooth, 

 hyaline, somewhat pip-shaped, very variable in size, 10-20 

 X 7-9 /M (average 12-16 x 7-5-8)11), contents guttulate, then 

 granular. 



Habitat. Amongst moss on a rocky, heathy slope. Only 

 known from the type locality, near Cullingworth, Yorks. 



A small, dingy, yellowish-white plant, scarcely overtopping 

 the moss in which it grows. It resembles certain forms of 

 C. cinerea and C. cristata, but is readily distinguished from 

 either by the exceedingly large spores. The structure also is 

 somewhat exceptional, being composed of very fine, densely 

 matted hyphae, which give rise to unusually large basidia. 



