20 
TWO REMARKABLE FUNGI. 
By M. C. Cooke. 
Cerebella paspali, Cke. fy Mass. 
Stroma convex, hemispherical (2-3 mm.), minutely gyroso- 
plicate, dark olive, sporules subglobose, or subquadrate, divided 
into 3 or 4 cells (after the manner of Urocystis ), which ultimately 
separate, olive, epispore smooth, 20 X 25 p, ultimate cells 10-12 
/x diam. Basidia of branched, interlaced hyphse, which are tinged 
red, although hyaline, and septate towards the base. 
On glumes of Paspalum scrobiculatum. Brisbane ( Bailey 560). 
This genus was established by Cesati in 1851, but the diagnosis 
appears never to have been published. The typical species. 
Cerebella andropogonis , was issued in Klotsch “ Herbarium vivum 
mycologicum,” No. 1587, and the brief description published in the 
“ Botanische Zeitung,” 1851, p. 699. Berkeley wrote an account 
of it, with rude figures, in “ Gardener’s Chronicle,” 1852, p. 643 ; 
but little notice appears to have been taken of it by Saccardo, who 
excludes it. 
The affinities of this genus could not be determined by Cesati, 
and Berkeley also seems to have been in doubt, although he sug- 
gested a possible relationship to Urocystis. This suggestion 
appears to be reasonable as far as Cerebella andropogonis is 
concerned, where the compound spores arise from a cellular 
stroma, but in the present species the stroma is filamentous, at 
least outwards, and the threads and spores suggest at once 
Stemphylium , as interpreted by Prof. Saccardo ; whilst on the 
other hand the habit and general appearance suggests an alliance 
with the Ustilagines. For the present, and until further informa- 
tion is obtained, we prefer to accept Berkeley’s suggestion, and 
place the genus temporarily near Urocystis. 
The other remarkable fungus is a species of Hemiarcyria , which 
we have called — 
Hemiarcyria applanata, Cke. Mass. 
Sporangia flattened, discoid, usually combined into a lobate 
plasmodiocarp, externally glaucous, or pale cinereous, internally 
bright yellow, apparently uniformly sessile. Tubes of capillitium 
furcate, or anastomosing, scarcely so wide as the spores, thicken- 
ings in the form of half-rings (as in Arcyria) encircling the tubes 
in a diffused spiral. Spores globose, warted, 12 p diam. 
On rotting Cycas. Brisbane ( Bailey 557, in part). 
The threads of the capillitium resemble those of some species of 
Arcyria , but the entire plant seems to have a closer affinity to such 
species as Hemiarcyria serpula. When growing it might at first 
be mistaken for Peziza cinerea. 
