Contributions to Our Knoivledge of the Freshwater Algae of Africa. 3 
cited refer to the general collection of South African Algae (c/. footnote t 
on p. 1). 
17-25. In pools, partly sheltered by sedges, formed by a slow-running 
spring, Kentani, August 28, 1912. (Gloeocystis infusionum, Ulothrix 
tenerrima, U. moniliformis, Oedogonium sp,, Vaucheria sp., Closterium 
ehrenhergii, G. lanceolatum, C. acerosum, Zygnema pectinatum, Ophiocytium 
spp., Tribonema bombycinum f. minor, Oscillatoria tenuis, Lyngbya spp., 
JEuglena spirogyra, Trachelomonas spp., Nitzschia sigmoidea, Gomphonema 
gracile, 8tauroneis phoenicenteron, 8. anceps, Synedra ulna, Cymbella 
naviculiformis, Pinnularia hemiptera, P. madagascariensis, Navictda 
producta, N. vulgaris.) 
26. On rock in running stream, Kentani, September 20, 1912. (The 
main mass a foliose Liverwort, with Closterium moniliferum, Pleurotaenium 
ehrenbergii, Cosmarium granatum, C. stibcrenafum, and a number of Diatoms 
— Synedra spp., Nitzschia sigmoidea, N. tryblionella var. levidensis, Amphi- 
pleura pellucida, Gomphonema intricatum, Cymbella helvetica, Navicida 
radiosa.) 
28. On leaves, in closed pool, Kentani, September 20, 1912. (Ulothrix 
tenerrima, Oscillatoria tenuis, Synedra idna, Nitzschia sigmoidea, Gomphonema 
spp., Achnanthes minutisshna, Navicida bicapitata, N. radiosa.) 
29, 30. In a stream, stagnant through drought, Kentani, September 24, 
1912. Eeddish-yellow deposit due to iron-bacteria. {Ulothrix tenerrima, 
Oedogonium sp., Ophiocytium gracilipes, Tribonema bombycinum f. minor, 
Anabaena inaequalis (?), Euglena spirogyra, Trachelomonas spp., and various 
Diatoms.) 
31. Pool in connection with slow spring, Kentani, October 12, 1912. 
{Chlamydomonas sp. (Palmella-stsige) , Nitzschia sigmoidea.) 
32. On muddy bank, Kentani, October 12, 1912. (Iron-bacteria and 
Navicula mesolepta, Nitzschia sigmoidea.) 
33. Attached to submerged rock in running water, Kentani, November 
11, 1912. (Spirogyra sp., Synedra ulna.) 
35. Kentani, November, 1912. (Leafy Liverwort with Clostermm 
moniliferum, Synedra spp.) 
36. Kentani, November, 1912. (Oocystis soUtaria, Oedogonium pusillum 
forma, Cylindrocystis brebissonii and var. minor, Penium minutum var. 
productum n. var., Closterium parvulum, Euastrum submontanum n. sp., Cos- 
marium quadratum var. africanum n. var., Zygnema pectinatum, Mougeotia 
uberosperma, Glaucocystis nostochinearum, Stigonema turfaceum, Eunotia spp.) 
64, 65. In half- stagnant, exposed pools, Kentani, August 6, 1912. 
(Closterium moniliferum, Cosmarium meneghinii f. africana, Spirogyra 
majuscida, Zygnema sp., Mougeotia sp., Synedra spp.) 
66. Open stagnant pools, Kentani, July 24, 1912. (Vaucheria sp., 
Spirogyra sp., Mougeotia sp., Synedra pulchella.) 
