80 
SUMMARY OF CURRENT RESEARCHES RELATING TO 
Zoospores of Pythium and Ceratiomyxa.* — In reference to the fact 
that the zoospores of some species of Py thiaceae are described as uniciliate, 
those of others as biciliate, Prof. G. F. Atkinson states that in P lithium de 
Baryanum the biciliate zoospores swarm for a time with amoeboid move- 
ments, and then divide into two zoospores, each with a single cilium. 
A new species of Ceratiomyxa is described, with a remarkable mode of 
germination of the zoospores. Through a small perforation in the wall 
of the spore the protoplasm escapes slowly as a vermiform body with 
tortuous motion, which shortly becomes amoebiform and developes short 
pseudopodes. This then divides into an 8-lobed body, with a single 
long cilium on each lobe, accompanied by a continual development of 
pseudopodes ; it finally breaks up into uniciliate zoospores. The species 
is named Ceratiomyxa plumosa sp. n. 
New Genera of Fungi. — A new genus of Sphaeropsideae is thus 
described by Herr C. A. J. A. Oudemans : f — Cytodiplospora g. n. : — 
Stromata erumpentia, verruciformia, peridermatis laciniis circumvallata, 
intus loculis difformibus distincte circinatibus foeta ; sporulae copio- 
sissimae, basidiis suffultae, hyalinae, fusiformes, medio septatae (itaque 
biloculares). C. Castanese was found on the Spanish chestnut in Holland. 
Under the name Saclisia albicans g. et sp. n., Mr. C. Bay J describes 
a fungus found in tubercular sputum, which possesses a true mycele of 
the nature of that of Mucor or Penicillium , and also developes yeast-like 
cells resembling those of Mycoderma. It was cultivated on various 
media ; the resting condition does not differ from the growing state. It 
does not cause fermentation. 
Prof. G. F. Atkinson § finds on rotten capsules of the cotton-plant a 
saprophytic fungus, Olpitrichum carpophilum g. et sp. n., which he makes 
the type of a new genus belonging to the Mucedini, allied to BMnotrichum , 
but differing in its inflated basids, which are constricted at the point of 
union with the hypha. 
M. L. Geneau de Lamarliere || establishes a new genus of Sphaeriaceae, 
Massarinula, from M. quercina found on dead branches of the oak. It is 
distinguished from the most nearly allied genera by the two-celled sporids 
being invested with mucus. 
A new genus of Polyporeae, Laccocephalum Me Alp., is described by 
Mr. J. G. O. Tepper from Victoria. It comes near to Boletus , but is 
distinguished by the tubes of the hymenophore not being separable from 
the sporophore. The sporophore is pileate, with a central stipe ; the 
tubes of the hymenophore are parallel and closely packed, their mouth 
roundish or oval, their inner part covered by the hymenium ; the spores 
are large, spherical, and coloured. 
M. N. Patouillard ** establishes a new genus of Hydnaceae, Asterodon, 
from Hydnum ferruyineum, with the following characters : — Resupinatum, 
effusum, membranaceo-floccosum, aridum, cystidiis stellatis brunneis 
* Bot. Gazette, xix. (1894) pp. 375-8. f Hedwigia, xxxiii. (1894) pp. 17-21. 
X Ber. Deutsch. Bot. Gesell., xii. (1894) pp. 90-3 (1 fig.). 
§ Bot. Gazette, xix. (1894) pp. 244-5 (1 pi ). 
|| Rev. Gen. de Bot. (Bonnier), vi. (1894) pp. 321-3 (3 figs.). 
«[] Bot. Centralbl., lx. (1894) pp. 193-5. 
** Bull. Soc. Mycol. France, 1894, p. 129 (1 pi.). See Hedwigia, xxxiii. (1894) 
Rep., p. 129. 
