ALG OF THE BIRKET QARUN, EGYPT 239 
very retoane Chlorophycee. Two species of Spirogyra were 
obtained with zygospores, S. decimina (Miill.) Kitz. (the most 
and S$ utz., and among them were fin specimen 
of Gehan eae he oath Hansg. with characteristic dark blue 
spores. A thin monogynous form of Vaucheria sessilis (Vauch.) 
C. also occurred in quantity, and with it a few fruiting filaments 
of Hdogonium intermedium Wittr. 
Among these Chlorophycee were a number e interesting blue- 
green Algae, the most conspicuous of which were two species of 
Cylindrospermum (of which on era indented ts new), Ana- 
bena oscillarioides var. tenuis Lemm., Katagnymene palustris sp.n., 
and several species of Paabenlitlion: and Oscillatoria. 
seetlaper irs peice OF THE SPECIES. 
RHODOPHYCE. 
eh gellar ate Zan. Floating in shallow water, 
Island Camp (no. 
CHLOROPHYCER. 
2. Sie ot intermedium Wittr. in Wittr. & Nordst. Alg. 
Exsic. fg apde- 178; Hirn in Acta Soe. Sci. Fennicer, xxvii. 1900, 
p. 94, 
me cop oogonia non complenti tibus 
Crass. fil. 17-19 p; altit. 3 34- major. 
= aie 41-46; ,, 42-46 
ospor 35-38 Bio» 26-81 
» cell antherid. 8 p 
Swampy ponds near mouth of Wady ‘(no. 360)" 
3. Ulothrix oy illw ea ; Hazen in Mem. Torr. Bot 
5. Enteromorpha plumosa Kitz. Crass. fil. 52-107 p; cell. 
-14 ». On rocks in shallow water me — Also nite i 
on stones and floating (nos. 426 and 451 ‘ 
U 
