SCENEDESMÜS obliquus.
Oblique Scenedesmus.
CRYPTOGAM1A Alga.
G en. ('har. Green* fusiform, elliptic or globose,
often acuminate bodies* joined laterally and
forming a short plane tseniaeform thread.
Spec. Char. Corpuscles 8* oblong-elliptic* acuminate*
forming a double, often oblique row, the
one seated about the other.
Syn. Scenedesmus obliquus. Kiitz. in Linn. v. 8.
p. 609.
Scenedesmus triseriatus. Meneg. Linn. 1840. p.
208. Ralfs in Ann. of Nat. Hist. v. 15. p. 403.
t. 12.f. 7. Hass. t. 92. f. 15, copied from Ralfs,
wrongly referred in text to S. obtusus.
Achnanthes obliqua. Turp. Mém. du Mus. v. 16.
t. 13. f 9.
Arthrodesmus acutus. Ehrb. Inf. t. 10. f 19. b.
F ORMING a thin green stratum. Threads composed of
eight corpuscles, apparently arranged in two rows, but when
accurately examined evidently arranged, more or less distinctly,
in three, of which the two outer corpuscles form one intermediate
between the other two, each of which consists of three
often obliquely placed corpuscles, alternating with those of
the other row. The two outer corpuscles are oblong-elliptic,
with the outer side less curved, and furnished at either end
with a more or less elongated process. The other six corpuscles
vary very much in form according to thé degree in
which they are pressed together at the point of junction, and