4 
EXOTIC FUNGI IN THE ROYAL HERBARIUM, KEW. 
laginous, minutely tomentose externally, cinnamon-colour, glabrous 
and greyish-cinnamon inside, f-1 c.m. high; sporangiola 8-12 in 
number, biconvex, very smooth, grey, then black and shining, 
about 2-2*5 m.m. diameter ; spores subglobose, colourless, 18-20 x 
15-16 p. 
On dung. Brisbane. ( Bailey .) 
More or less gregarious. Basidia bisporous, clavate, apex trun- 
cate, sterigmata elongated, slender. 
Diatrype (Nummularoidea) artocreas, C. fy M. 
Stroma erumpent, suborbicular, distinctly marginate, thick, 
black outside and inside, 1-1 J c.m. broad; disc plane or slightly 
convex ; margin elevated, sterile, minutely papillose, 4 m.m. thick ; 
perithecia in one series, rather large, elongated, neck short, 
scarcely projecting, ostiolum rounded ; asci cylindrical above, with 
an attenuated base, 8-spored, spores in one row, cymbiform, 
slightly curved, acute at both ends, hyaline, 2-guttulate, 10-12 x 
3*5 /x. 
On rotten wood. St. Vincent, W. Indies. 
In habit and external features a good Nummularia , but with the 
fruit of Diatrype. The spores are really narrowly lanceolate, but 
curved, and very acute at the tips, colourless. The present species 
forms the type of a new subgenus or section of Diatrype — Num- 
mularoidea , having the stroma of Nummularia. 
Haxnaspora longissima, Korn. Hedw., Vol. xvi., p. 23 (1877).= 
Phragmidinm longissimum, Thiim. Flora , p. 379 (1875) ; Thiim. 
Myc. Univ.Fxs ., No. 542; Sacc. Syll., Vol. vn., Fart II., No. 2630.= 
Uredo lucida, Thiim. Flora , 1876, p. 570 ; Thiim. Myc. Univ. Fxs., 
No. 1349; Sacc. Syll., Vol. vn., Part II., No. 2630; Fab. Winter 
Fung. Fur. Fxs., No. 2925. 
Specimens of the above-named fungus received at the Kew 
Herbarium in a fresh condition enabled the germination of the 
spores to be observed. The identification of these specimens was 
verified by comparison with a portion of Kalchbrenner’s type 
specimen. 
The teleutospores are agglutinated in long, slightly tapering 
filaments of a yellow colour, rather gelatinous when moist, but 
becoming silky-fibrillose and variously twisted when dry. The 
teleutospores are cylindrico- acuminate, 3-6 septate, 70-130 x 
9-12 p, endochrome yellow; pedicel hyaline, tapering gradually 
towards the base, hollow, 200-300x9-10 /x. Each cell of the 
teleutospore has a single germ-pore ; the order of germination is 
always basipetal ; the promycelial branches are elongated, rather 
closely transversely septate, and either simple or with short 
lateral branches of equal thickness to the parent hypha. Under 
favourable conditions each cell of the promycelial thread gives 
origin to a subglobose, very minutely warted, yellowish-white 
promycelium spore 9-10 p in diameter, and borne on a slender 
sterigma. On germination the promycelium spores emit an elon- 
gated, transversely septate, sparingly branched germ-tube about 
