76 
SOME EXOTIC FUNGI. 
Cladosporium epibryum, CJce. Sf Mass. 
Csespitulis minutissimis, atris. Hyphis simplicibus, brevibus, 
flexuosis, septatis, olivaceis, superne pallidioribus ; conidiis ellip- 
ticis, utrinque" rotundatis, uniseptatis, medio constrictis, pallide 
fuscis, hyalinis, 18-20 x 10-12 p. 
On capsules of various mosses. United States. {Mrs. E. G. 
Britton.) 
Pleospora muscicola, Cke. <$f Mass. 
Peritheciis sphaeroideis, basi applanatis, breve papillatis, nigris, 
subnitidis, hevibus. Ascis clavatis, octosporis, brevissime stipi- 
tatis ; sporidiis distichis, ellipsoideis, utrinque rotundatis, medio 
constrictis, 5-7 septato-muralibus, saturate fuligineis, 30-35 x 
12-15 /a. 
On Bryum pendulum. Dumb-bell Bay, 82° N. ( Capt . 
Fielder .) 
The upper half of the sporidium is broader than the lower in 
the majority of cases. The colour is sometimes so dark as to be 
almost opaque. 
ON ERYSIPHE POLYCHiETA, B. <$* C., and UNCINULA 
POLYCHiETA, B. $ G. 
The above species, although first described only a dozen years 
ago, have, owing to various reasons, been plunged into a state of 
uncertainty quite on a par with the microscopic species of old 
authors. Both species are described by Berkeley, as quoted below, 
in “ Grevillea,” Yol. iv., p. 159 (1876), each being followed by a 
fuller description drawn up from the type specimen. 
11 Erysiphe polychceta , B. & C. — Maculis orbicularibus ; appen- 
dicibus brevibus plurimus rectis; ascis elongatis clavatis. On 
leaves of Celtis. Alabama. Peters, No. 3876. Spots orbicular, 
yellow-brown in the centre, from the young perithecia ; appendages 
about equal to their diameter, straight ; asci elongated, clavate.” 
— “ Grev.,” Vol. iv., p. 159. 
Hypophyllous, spots dense, whitish, perithecia generally numer- 
ous, brownish, becoming black, subdepressed, 250-300 p diam., 
appendages numerous, 200 or more, colourless, simple, when young 
perfectly straight, when fully developed more or less involute at 
the tips, which are attenuated at all stages ; asci about 50, sub- 
cylindrical and abruptly attenuated at the base into a slender 
pedicel, constantly bisporous ; spores smooth, colourless, simple, 
cylindrico-ellipsoid, 26-30 x 11-14 /a. (Type in Herb. Berk., Kew, 
No. 10543.) 
It will be seen from the above full description that Berkeley had 
drawn up his diagnosis from a young perithecium having the 
appendages yet straight. 
