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C O N E E I I V A vivipara.
Viviparous Conferva.
CRYPTOGAMIA Algae.
Gen. Char. Seeds produced within the substance of
the capillary or jointed frond, or in closed tubercles
united with it.
Spec. Char. Green, alternately branched. Joints five
times as long as broad, swelling upwards; each
bearing a lateral, very long, slender, simple branch,
bulbous at its base. Capsules lateral, sessile.
Syn. Conferva vivipara. Dillw. Conf. t. 5 9. Syn. n. 86,
C. setigera. Roth. C a ta l.fa sc . 3. 2 8 3 . t. 8. f 1.
F o u n d in fresh water near Yarmouth by Mr. Turner, to
whom we are obliged for specimens.
The fronds compose dense continued masses on various
aquatic plants, of a light pellucid green colour, and from 2
to 6 lines high. Each stem is repeatedly and alternately
branched, zigzag, the joints rather swelling upward, or club-
shaped, 4 or 5 times as long as broad. From the top of each
joint, on one side, springs a very long, and extremely fine,
simple hair-like branch, not one tenth so thick as the main
stem though its joints are of the same length, with a tumid
bulb-like base. Where such slender branches are wanting, a
sessile capsule, of an elliptical form, dark in the centre, is
found in the place of each. These are not in our specimen,
so that we have borrowed some from Mr. Dillwyn’s figure.
We retain his name, in preference to Dr. Roth’s equally good
one, published the same year, out of respect to the authority
which we think his Synopsis may justly claim.