INDEX. 491 
Staurastrum Cunningtonii, G. S. West *, 127. 
cuspidatum, Zréb., 124. 
denticulatum, Arch., 127. 
Dickiei, Ralfs, 124. 
echinatum, Bréd., 125. 
elongatum, Barker, 286. 
gracile, Ralfs, 91, 128. 
yar. elegantulum, И”. $ (С. S. 
West, mentioned, 128. 
var. Nyanse, G. 5. Wrest *, 12%, 
var. protractum, G. S. West”, 
128. 
var. subornatum, Schmidle, 82, 
138. 
gracillimum, JV. $ С. S. West, 128. 
leptocladum, Nordst., 129. 
forma africanum, G. S. West *, 
129; mentioned, 90, 91. 
Libeltii, Racib., mentioned, 126. 
limneticum, Schmidle, 129 ; mentioned, 
82, 91; plentiful, 85. 
var. aculeatum, Lemm., 130. 
longiradiatum, W. & G. S. West, 128. 
margaritaceum, Menegh., mentioned, 
127. 
montieulosum, Bréb., 126. 
var. bidens, G. S. West *, 126. 
—— var. bifarium, Nordst., mentioned, 
126. 
mutabile, JV. B. Turn., 127. 
попапит, W. В. Turn., 130. 
Ophiura, Lund., mentioned, 85. 
orbiculare, Menegh., 125. 
var. depressum, Roy $ Biss., 125. 
pilosum, Arch., 125. 
var. minimum, G. S. West *, 125. 
polymorphum, Bréb., 127. 
pseudotetracerum, IF. & G. S. West, 
127. 
punctulatum, Bréb., 125. 
quadrangulare, Bréb., 126. 
var. attenuatum, Nordst., 126. 
setigerum, Cleve, 126. 
var. Nyanse, Schmidle, 126, 
sinense, Liithem., 125. 
subgemmulatum, W. & G. S. West, 
127. 
Submanfeldtii, W. & G. S. West, 128. 
tetracerum, Ralfs, 127. 
tohopekaligense, Wolle, 130; men- 
tioned, 91 
Staurastrum tohopekaligense, var. quadr- 
angulare И”. у С. 5. West, men- 
tioned, 150. 
turgescens, De Not., 125. 
Stauroneis, Zhrenb., 156. 
anceps, Ehrenb., 156. 
Crucicula, Cleve, 156. 
Crucicula, W. Sm., 154. 
Staurosira, ZZhrenb., mentioned, 149. 
Stellaria aquatica, Moench, 209, 213. 
arenaria, Maxim., 397 ; mentioned, 395. 
Boraeana, Jord., mentioned, 207. 
bulbosa, Hook. f., 397. 
Cherlerie, Williams, 397 ; mentioned, 
Davidit, var. himalaica, Franch., 397. 
dianthifolia, Wiliams *, 396; men- 
tioned, 395. 
graminea, Linn., 395; mentioned, 395. 
gyangtsensis, Williams, 396; mentioned, 
395. 
Holostea, Linn., 209, 218. 
lanata, Hook. f., 397; mentioned, 395. 
media, Villars, 209, 213; mentioned, 
207. 
neglecta, Weihe, mentioned, 207. 
subumbeilata, Edgew., 396; mentioned, 
395. 
Stemonites Friesiana, De Bary, 412. 
fusca, Kost., 412. 
Stephanodiscus, Ehrenb., 148; mentioned, 
93; of Nyasa, 91. 
Astrea, Grun., 148. 
var, minutulus, Grun., 148. 
var. spinulosus, Grun., 148. 
Stereocaulon coralloides, Fries, 356. 
Stereum lobatum, Fr., 411. 
Stigeoclonium subuligerum, Kütz., 101. 
Stigonema, .4g., absent from Tropical 
Africa, 97. 
Stigonemacese of Tanganyika Exped., 97, 
167. 
Stratiotes, Linn., mentioned, 221. 
Aloides, Linn., 210. 
Streptocarpus ruwenzoriensis, Baker, 269; 
mentioned, 230. 
Striga hermonthica, Benth,, 268; mentioned, 
229. 
Strobilomyces strobilaceus, Bert., 411. 
Strobilus Theory, 43. 
Stumpdorn, 425. 
