BERKELEY'S TYPES OF FUNGI. 113 
TRIDENS, gen. nov. 
Ascomata immersa, disciformia, immarginata, excipulo atro 
epidermidi concreto et cum illo in lacinie acutas e centro fissa. 
Asci clavati, octospori; spore hyaline, oblonge, muriformes ; 
paraphyses filiformes, clavulate. 
Est Phacidium dictyosporum. 
T. ELEGANTISSIMUM. (See p. 112 for 7. elegans.) 
Excrpuna nr@ro-ruFa, Berk. in Hook. f. Fl. New Zeal. ii. 
p. 202, tab. 106. f. 11 (1855). . 
Scattered or gregarious, sessile, globose and closed at first, 
then opening by a minute pore, finally saucer-shaped, the entire 
margin remaining erect or slightly incurved, glabrous, 3-3 mm. 
diameter ; disc reddish-brown, externally blackish ; hypothecium 
and excipulum formed of very slender, branched, septate hyphe, 
which pass at the cortex into brownish, grumous cells; asci 
broadly cylindric-clavate, apex narrowed and not blue with 
iodine, 75-80 12,; spores 8, irregularly 2-seriate, hyaline, 
elliptic-oblong, sometimes slightly curved, 3~4-transversely- 
septate, afterwards with one or more vertical or oblique septa, 
27-380 x 7-84; paraphyses numerous, very slender, hyaline, 
septate, not at all thickened at the tip. 
Scleroderris nigro-rufa, Sacc. Syll. viii. n. 2469. 
On the under surface of leaves of Pittosporum crassifolium. 
Hawkes Bay, New Zealand (Colenso). 
Excreuna eree@arta, Berk. in Hook. f. Fl. New Zeal. ii. p. 202 
(1855). 
Erumpent; gregarious or scattered; disc pallid, externally 
blackish, glabrous, about 4 mm. across; cortex parenchymatous, 
cells small; asci cylindric-clavate, apex rounded, not blue with 
iodine, narrowed below into a slender pedicel, 100 x 9-10 p ; 
spores 8, irregularly 2-seriate in the upper part of the ascus, 
l-seriate towards the base, hyaline, smooth, elliptical or some- 
times inclined to be narrowly egg-shaped, or obovate, 10-12 x 4- 
5; paraphyses numerous, very slender, tips very slightly or 
fiequently not at all thickened. 
Ephelina gregaria, Sace. Syll. viii. n. 2427. 
On the upper surface of living leaves of a species of Gnapha- 
lium. New Zealand (Colenso, nn. 5056 & 5272). 
This species is a typical Pseudopeziza, and will stand 
GARTA. 
as P. @RE- 
