BERKELEY'S TYPES OF FUNGI. 469 
below, irregularly 2-seriate upwards, hyaline, smooth, narrowly 
elliptical, straight or slightly curved, 3-septate, rarely becoming 
9-septate, 18-25 x 5 u; paraphyses very slender, numerous, more 
or less agglutinated together at the slightly thickened, coloured 
tips. 
Lecanidion proximum, Sace. Syll. viii. n. 3261. 
On old weathered oak-wood. England (Berkeley & Leighton). 
Agreeing closely with Patellaria fusco-atrum in the spores, 
differing in the wall of the ascus not being at all thickened at 
the apex, and not blue with iodine, also in the immarginate 
ascophore being somewhat buried between the fibres of the 
weathered wood on which it grows. Odontotrema longius, Nyl., 
is identical with the present species. 
PsrroPEZIA FLAVIDA, Berk. $ Curt., N. Amer. Fung., in Gre- 
villea, vol. iv. (1875) p. 1; Sacc. Syll. viii. n. 612. (Pl. XVI. 
fig. 10.) 
Crowded and sometimes confluent ; often orbicular when 
solitary, plane, sessile, rather fleshy, margin free and somewhat 
raised when full grown, 3-6 mm. across, glabrous ; dise yellow ; 
ascophore parenchymatous, cortical cells polygonal, large ; asci 
narrowly cylindrical, apex obtuse, not becoming blue with iodine, 
about 120x 7-8 p; spores 8, vertically l-seriate, hyaline, con- 
tinuous, smooth, 2-guttulate, elliptic-oblong, ends obtuse, 12-14 
X7 u; paraphyses very slender, not thickened at the tip, not 
longer than the asci. 
On rotten wood of Quercus alba. Alabama, U.S.A. (Peters, 
n. 5233). 
Differing from the three remaining species placed by Berkeley 
in not being floccose underneath, and hence not having a downy 
margin; small spores; very slender, colourless paraphyses not 
longer than the asci; and in the margin being free and raised 
from the substratum. I should place the present species in the 
genus Mollisia. 
PstLoPEZIA NUMMULARIA, Berk. in Lond. Journ. Bot. vol. vi. 
(1847) p. 325. (Pl. XVI. fig. 13.) 
Suborbieular, plane, sessile, rather fleshy, attached by the 
entire under surface, which is more or less downy or strigose, 
the hyphæ forming a pale fringe round the margin when the 
plant is in full growth; disc glabrous, purplish-brown or 
