British Gastromycetes . 59 
Externally resembling the typical form, but differing in the 
spores. 
Nidularia Berkeleyii, Mass., n. sp. (Fig. 38). Subglobose, 
becoming broadly open ; peridium thick, felt-like, externally 
hirto-tomentose, bright cinnamon, inside same colour, velvety ; 
peridiola numerous (40-50), circular, biconvex, about 2 mm. 
diameter, bright brown, smooth, shining, much wrinkled when 
dry; spores elliptical, 9-10 x 5-6 /x, smooth, at first colourless, 
then becoming pale brownish olive. 
On wood, twigs, etc., collected abundantly in Powerscourt 
deer park by the Rev. M. J. Berkeley, Sept. 1867, and referred 
to Nidularia farcta , from which it differs in the peridium being 
bright cinnamon outside and velvety inside, and in the entire 
absence from the earliest stage of the long rooting mycelium. 
Peridium 5-7 mm. broad and high, with not a trace of cord- 
like roots at base, solitary, or 2-3 together, margin thick, 
mass of peridiola firmly agglutinated together by mucus. 
Nidularia confluens, Fr. (Fig. 81). Not rooting, aggregated 
or subconfluent, peridia subsphaerical, thin, villose, irregularly 
ruptured, whitish ; peridiola numerous, orbicular, compressed, 
glabrous, about 1*5 mm. across, becoming corrugated when 
dry; spores broadly elliptical, smooth, colourless, 8x10 
x 6-7 \x. 
Nidularia confluens , Fries et Nordh., Symb. Gast. p. 3 ; 
Sacc., Syll. vii, p. 29 ; Tul., Mon. Nid. p. 96. 
Nidularia farcta (confluens), Fries, Syst. Myc. ii, 301. 
On chips and amongst leaves, rarely on the ground. Britain. 
- — Europe. 
This species has been recorded as British I have seen no 
British specimens, and the spores are drawn from an authentic 
specimen sent by Fries to Berkeley. Crowded and often 
irregular, villose, rather large. 
Nidularia dentata, With. ‘ Turban -shaped. Smaller than 
a hempseed. Colour pale buff ; rather woolly ; five seg- 
ments or teeth at the edge, broad, spear-shaped, regular. 
