84 British Fungi, 



tinguisbed by its smaller size, and the globose, not 

 elongated, inflation at tlie base of the hypha. 



Pilaira, Van Tiegh. 



Sporangiferous hypha without a swelling at the 

 apex, and without a transverse septum at the base, 

 becoming considerably elongated and elevating the 

 sporangium at its apex ; cuticle of upper portion of 

 sporangium thick, indurated ; columella present, spo- 

 rangium not projected as in Pilobolus. 



Pilcdraj Yan Tiegh. Ann. Sci. Xat. ser. vi. vol. i. 

 p. 50 ; Grove, Journ. Bet. vol. xiii., n. s. p. 132. 



Distinguished from the genus Pilobolus by the 

 sporangium not being projected, but elevated on a long 

 stem, which soon disappears. 



Pilaira anomala, Schroet. (figs. 1-5). 



Sporangiferous hyph^e cylindrical, slender, elon- 

 gated, aseptate, often recurved at the apex, hyaline, 

 flexuous ; sporangia at first spherical, then hemi- 

 spherical, up to 250 /jb diameter, black, minutely 

 warted; columella hemispherical, hyaline, up to 120 

 /JL across; spores equal, elliptical, 5-12x6-7 /jl, sub- 

 hyaline or tinged yellow; zygospores 100-120 ft dia- 

 meter, epispore black, even. 



Pilaira anomala (Ces.), Schroet. Krypt. FL Schles. 

 Pilze, p. 211 ; Sacc. Syll. n. 606. 



Pilaira Cesatii, Yan Tiegh. Ann. Sci. Xat. ser. vi. 

 vol. i. p. 52, pi. 1, figs. 14 — 24; Grove^ j\Ion. Pilob, 

 p. 37, t. 6, ff. 7, 8. 



On dung of various animals. Local. 



Distinguished by the very long thin stem, which 



