132 A REVISION OF THE GEXUS BOVISTA. 



11. B. tosta B. & C. — Globose, with a thin cord-like root; 

 cortex evanescent, peridium thick, rigid, dark brown, cracking and 

 falling away in patches; mass of spores and dense capillitium 

 bright cinnamon ; threads simple, pale; spores globose, indistinctly 

 granulated, ochraceons, sometimes pedicellate, 5-6 /z. diam. Berk, 

 in Herb. (Type in Herb. Berk. no. 4591). Cuba. The spores are 

 in many instances smooth. Three inches or more in diameter. 



12. B. glauco-cinerea Speg. Fung. Argent. Pug. iv. p. 101. 

 Globose, base rooting; cortex absent, peridium thin, cartilaginous, 

 rather fragile, even, smooth, greyish lead-colour ; threads of 

 capillitium hyaline (4 ^. thick) smooth, sparingly septate ; spores 

 globose (3-8 /x. diam.), minutely reticulato-papillose, glaucous, sub- 

 hyaline. ^ Sandy ground. Tuyii, Argentina. (25-30"' diam.) 

 Resembling B< plumbea in general appearance. 



13. B. pampeana Speg. Fung. Argent. Pug. iv. p. 103. — Sub- 

 globose, dehiscing by a more or less regular opening; cortex 

 fugacious, peridium thickish, flexible, then parchment-like, dark 

 chestnut, smooth, even ; mass of spores brownish olive ; threads of 

 capillitium slender (3 /x thick), smooth, sparingly septate; walls 

 thick, branched, spores globose, (10-11 p diam.) coarsely ami 

 densely papillate, fuliginous ; pedicels flexuous. Tuyu, Argentina. 



(25-30"' diam.) 



b. Spores globose, smooth. 



14. B. pila Berk. & Curt. Grev. ii. p. 49. — Subglobo , 

 sessile ; cortex fibrillose, evanescent ; peridium rather thick, 

 tough, dirty ochraceons, minutely tomentose ; mass of spores and 

 capillitium brownish umber, with a slight purple tinge ; threads 

 thick-walled, brown, stout, much branched, tips tapering ; spores 

 globose, pale umber, 5 / u. diam. (Type in Herb. Berk. Kew. 

 no. 4600). About 1| in. across. United States. 



15. B. nigrescens Pers., Syn. p. 136. — Subglobose ; cortex 

 papery, whitish, soon breaking away; peridium thin, tough, 

 shining, blackish umber, dehiscing by an irregular apical orifice ; 

 mass of spores and capillitium umber with a purple tinge ; threads 

 12-18 p. at thickest part, thick- walled, bright brown, much 

 branched, tapering towards the tips ; spores same colour, globose, 

 smooth, pedicellate, 5-6 /i diam. Fr. Syst. Myc. iii. p. 23 ; Karst, 

 Myc. Fenn. (Basidiomycetes) p. 359; Berk. Engl. Fl. v. p. 302; 

 Outl. Fung. p. 301, pL. 20, f. 5, Cke. Hdbk. p. 371. Lxjco^rdon 

 ni<ires< m, Vitt. Mon. p. 176. L.gJobomm Bolt. t. 118; Withering 

 iv. p. 350; L. bovitia Sow. t. 881 ; L. ant iaeum Sowerby H rb- 

 specimen now in Herb. Berk, (specimen in Herb. Berk.) Exs. : 

 Desm. Cyrpt. Fr. ser. i. 527 ; Fuckel Fung. Khen., Karsten Fung. 

 Fenn. 117; Cke. Fung. Brit. 521. Dry pastures and heathy 

 places. From 1-2 in. across. Europe, North America, New 

 Zealand. 



16. B. plumbea Pers. Syn. p. 137, t. 3, f. 1.— Globose; cortex 

 thin, whitish, persist it towards the base; peridium tough, thin, 

 lead-coloured, dehiscing by a small irregular mouth; mass ot 



spores and capillitium umber-brown ; threads thick-walled, stout. 



