136 A REVISION OF THE GENUS BOYISTA. 



smooth, olive; spores globose, (3-5 //. diam.) epispore thick, 

 smooth, with pedicels from once to twice as long as diameter 

 of spores. Common. (18-21"' diam.) Argentina. 



c. Spores elliptical. 



33. B. bicolor Lev. Ann. Sci. Nat. 3 ser. v. p. 102. — Globose ; 

 cortex evanescent ; peridium thin, glabrous, papery, brownish or 

 cinnamon, dehiscing by a small determinate mouth ; capillitium 

 dense and with mass of spores, bright cinnamon ; threads pale, 

 flexuous, rarely branched; spores elliptic-oblong, pallid, smooth, 

 6 x 3-4 fi. (Specimen from Leveille in Herb. Berk. no. 4590). The 

 peridium is often irregularly torn above. There is sometimes a 

 stout rooting base. From 2-4 in. across. Bombay. Ceylon. 



34. B. ovalispora Cke. & Mass. Grev. xvi. p. 4G. — Sub- 

 globose, sessile ; cortex whitish or ochraceous, breaking away in 

 patches above, subpersistent towards the base ; peridium thin, 

 flaccid, smooth, dull lead-colour, dehiscing by an irregular apical 

 rupture ; capillitium and spores umber in the mass ; threads 

 12-16 /a. at thickest part, much and vaguely branched, tapering to 

 long slender tips, walls thick, dirty umber ; spores oval, brownish 

 umber, with a narrow hyaline border; pedicels long, stout, 

 hyaline, 6x4-5 /a. (Type in Herb. Kew). On the ground ; Kew 

 Gardens. Nelson (New Zealand). Carolina (U.S.A.). Differing 

 from li. plumbea in being larger (2 in. or more), in the oval spores, 

 with a hyaline border, and much thicker cortex ; and from B. 

 niijrescens in the oval spores and absence of purple tinge in tliQ 

 capillitium and spores. 



35. B. fulva Mass. n. sp.— Globose ; cortex persisting for some 

 time in form of minute whitish warts ; peridium rather thick, 

 lead-colour with brown tints, dehiscing by a small apical mouth ; 

 mass of spores and capillitium bright fulvous ; threads thick, 

 branched, brown, tapering; spores very pale yellow, broadly 

 elliptical, pedicellate, 5-6 x 3-4 /x. (Type in Herb. Kew). On 

 the ground. Simla. About 1 in. across. 



>f 



>f inf 



36. B. tunicata Fr. Syst. Myc. hi. p. 25.— Globose; c rtex 

 very thin, free, tunicate; peridium papery, pliant, lead-colour; 

 mouth torn ; mass of spores and capillitium smoky olive. About 

 the size of a walnut. Gra ^y cliffs. Sweden. 



37. B. fusca Lev. Ann. Sci. Nat. v. 5, p. 303.— Globose ; peri- 

 dium brown, dehiscing vertically; mass of spores and capillitium 

 blackish -purple ; threads dichotomously branched, attenuated ; 

 spores globose. On the ground. New Grenada. . 



88. B. craniiformis Schwein.— Stipitate, stem obconic, thick, 

 three inches diameter, short, scarcely rooting; peridium resembling 

 in form a human skull; cortex at first minutely furfuraceous, 

 membranaceous and irregularly torn, glabrous inside ; peridium 

 densely floccose ; mass oospores and capillitium ycliowish-ocbrc at 

 length greyish ; spor< pedicellate. Sehweimtz, Syn. l<un£. 



