Contributions to Our Knowledge of the Freshivater Algae of Africa. 19 
the cells were not more than two or three times as long as broad. Myxonema 
attenuatum, Hazen (*Mem. Torrey Bot. Club,' xi, 1902, p. 206, pi. xxxv) 
comes very close to the form in question, except as regards the constriction 
between the cells, and it may be doubted if it is more than a variety of 
;S^. falklandicum. 
(2) CHAETOSPHAERIDIACEAE. 
Genus CHAETOSPHAERIDIUM Klebahn. 
1. Chaetosphaeridiu7n glohosum (Nordst.), Klebahn, Pringsh. Jahrb., 
XXV, 1893, p. 306, Tab. XIV, figs. 5-10. (Syn. : Herposteiron glohosa, 
Nordst. ; Aphanochaete glohosa, WoUe.) 
Samples 311, 312. 
Previously recorded from Cape Colony (Fritsch). 
(4) COLEOCHAETACEAE. 
Genus COLEOCHAETE Br^bisson. 
1. Goleochaete sciitata, Brebisson, Ann. sci. nat., ser. 3, Bot., i, 1844, 
p. 29, PI. II, figs. 1-7. 
Sample 327 (on fragments of leaves and on the filaments of Spirogyra 
hellis (Hass.), Cleve.) 
Previously recorded from Cape Colony and Orange Free State (Fritsch). 
2. Goleochaete orbicularis, Pringsheim, Beitr. z. Morph. u. Syst. d. Algen, 
iii, Pringsh. Jahrb., ii, 1860, p. 11, PL I, fig. 5, etc. 
Sample 343 (on dead leaves). 
(g) OEDOGONIALES. 
(1) OEDOGONIACEAE. 
Genus OEDOGONIUM Link. 
1. Oedogonium pusillum, Kirchn. ; Hirn, Monogr. u. Iconogr. d. 
Oedogoniaceen, 1900, p. 299, Tab. XXIV, fig. 126. (Syn. : 0. africanum, 
Lagerh. ; 0. Mebahnii, Lemm.) 
Forma paullo major, lat. cell, veg., 6-7-5 fx; lat. oogon., 20-21 fx; long, 
oogon., 27-33 fx. 
Sample 36^ 
