240 THE JOURNAL OF BOTANY 
6. “te a fracta (Dillw.) Hass. Crass. fil. prim. 98-107 
m. 34-45 p. Attached to the bottom of wn boat (no. 421) ; At 
dhtained floating in the river “ El Wady” (n 
aucheria sessilis (Vauch.) DC. <A ‘citer slender mon o- 
gynous form. Crass. fil. 44-48 «; long. oogon. 92-98 y, lat. 70- 
P 
blue colour. gyptian plants were very slightly larger than 
those originally described by Hansgirg from Bohemia, but were 
otherwise ee 
rogues daca (Mill.) Kitz. With the preceding 
species — 
10. ubia Kiitz. Tab. Phye. v. t. 24, f. iv; Rabenh. Flor. 
Europ. ‘Agar iii. 1868, p. 243. Orcee cell. veget. 48 w; long. 
ZYgosp. 2 p. Scarce a among the preceding species (no. 389). 
e 
spec not good, and it is not unlikely that Kiitzing’s 
ee icon’ ” should be relegated to some other. Each cell possessed 
Crass. cell. veget. "78-89 2p. Rather scarce in swampy ae near 
Wady (no. 389). 
12 Stinlessien Leibleinit Kitz. Amongst the preceding 
nape (no. 389). 
3. Ankistrodesmus falcatus (Corda) Ralfs var. spirilliformis 
Wes 
G. s. n swampy ponds near mouth o 
14. A. ee (Schroder) G. S$. West, Treat. Brit. Freshw. 
Algew, 1904, p. 224. [Reinschiella ? setigera Schréder in Ber. 
in 
Deutsch. Bot. Ges. xv. 1897, p. 492, 6.25, f.4; Schréderia setigera 
(Schr.) Lemm. in Hedwigia, XXXVii. 1898, p. 311] 
orma minor; long. cum spin. 42 »; lat. max. 3. With the 
preceding species (no. 389). In general aspect the specimens 
hii very like British forms of A. setigerus, but they were of 
a 
one parietal ee 
with no trace of a pyrenoid, but the presence or absence of pyre- 
noids is a very variable feature in the genus da biencdeisc: and 
is largely dependent upon * ait ar 
. Tribonema bombycin a (es) Derb. & Sol. forma minor 
(Wille) G. S. West. Orsi: cell. 7-8 Rather vc mete 
species of Spirogyra in ponds near mouth of Wady (n. 389). 
BACILLARIER. 
16. Melosira Borreri Grey. General through Birket Qarun 
and its surroundings, occurring abundantly on the shores and in 
