ZOOLOGY AND BOTANY, MICROSCOPY, BTC. 
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which are essentially endophytic ; in Chsetonema the erect branches are 
terminated or replaced by unicellular hairs ; in Acrochsete and Bolbo- 
coleon they are terminated or replaced by bristles ; in Endocladia , 
Phseophila, Blastophysa , and Chsetosiplion , the free branches are replaced 
by bristles. 
Trichophilus Neniae sp. n.* — Under this name Prof. G. v. Lagerheim 
describes a new species of this genus of AlgaB from Ecuador, which 
forms dark-green patches on snail-shells. It differs from the only 
species previously known, T. IVelekeri, parasitic on the hairs of sloths, by 
the more regular coalescence of its branches into a pseudo-parenchyme, 
its much smaller cells, and its larger zoosporanges. 
Snow-flora of Ecuador.! — Prof. G. v. Lagerheim has investigated 
the snow-flora of the mountains of Ecuador, and finds 1 species of moss- 
protoneme, 2 of Fungi (vide infra), and 21 of Algee. 
Of the Algae, 4 are species of Chlamydomonas , of which 3 are new, 
and are named C. sanguinea, asterosperma , and glacialis ; all are coloured 
with a red haematochrome of various shades. C. sanguinea produces 
megazoospores, and is also propagated by immotile vegetative cells, the 
contents of which divide into 8, 16, or 32 ; zygosperms were not seen. 
The two other species also propagate by immotile vegetative cells ; the 
zoospores were not observed, but both produce globular zygosperms. 
A new genus and species of Ulotrichaceas is described, Baphidonema 
nivale , with the following generic character : — Thallus filamentosus, sim- 
plex, apicibus setiformibus ; fila septata libera (non adnata), muco non 
involuta ; membrana non lamella ta ; chromatophora singula, parietalia, 
laminaeformia, viridia, pyrenoidibus et granulis amylaceis carentia ; 
multiplicatio bipartitione vegetativa transversali filorum. 
Among the remaining Algae are a new species of Trochiscia, T. nivalis , 
2 Desmidiaceae, 1 Diatom, a Nostoc, apparently N. microscopicum , and 
3 species of Bichatia ( Glseocapsa Ktz.). 
Nematophycus.J — Mr. C. A. Barber describes a new species of this 
fossil genus from rocks of the Wenlock age, near Cardiff, which he calls 
Nematophycus Storriei. The structure confirms the view of the algal 
nature of the organism. 
Fungi. 
Saprophytic Fungus on Snow.§ — Among the snow-flora from the 
mountains of Ecuador Prof. G. v. Lagerheim finds the first instance of a 
fungus saprophytic on snow, in the type of a new genus, Selenotila , with 
the following diagnosis : — Fungus unicellularis, hyphis genuinis desti- 
tute, gemmiparus ; cellulae (vel gemmulse) lunuliformes, continue, 
achroae, solitariae vel in coloniam ramosam consociatae. The single 
species, S. nivalis , consists of a single crescent-shaped cell 2-3 p broad, 
and 18-30 p long. The genus may belong to the Hyphomycetes, or 
may be allied to the Saccharomycetes. 
A Chytridium was also observed parasitic on Chlamydomonas sanguinea. 
* Ber. Deutsch. Bot. Gesell., x. (1892) pp. 514-8. 
t Tom. cit., pp. 517-34 (1 pi.). 
X Ann. Bot., vi. (1892) pp. 329-38 (2 pis.). Cf. tliis Journal, 1890, p. 366. 
§ Ber. Deutsch Bot. Gesell., x. (1892) pp. 524-5 and 530-1 (1 pi.). 
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