Nutritional Freshwater Life
32
Common name: Not available.
Distribution: North America: Arkansas
(AlgaeBase).
Habitat: Rivers, streams.
Description: The plants are homothallic, and both male and female
reproductive organs are borne upon
internal, peripheral, generative filaments. It is a diphasic organism whose
haploid number of chromosomes is 10.
The spermatium is liberated when its
nucleus is in prophase, and the division
is completed when the spermatium
makes contact with the trichogyne.
The spermatium appears to have no
distinct wall at the time of its liberation, but develops one by the time it
makes contact with the trichogyne.
The usually bifurcated trichogyne of
this species has no perceptible nucleus
at any stage of development. No auxiliary cells occur in this plant, but there
are many nutritive cells produced by
the sterile laterals and the gonimoblast
filaments (Mullahy, 1952).
Lemanea torulosa (Roth) C. Agardh 1814
32
Common name: Not available.
Distribution: North America: Arkansas
(AlgaeBase).
Habitat: Rivers, streams.
Description: The plants are homothallic, and both male and female
reproductive organs are borne upon
internal, peripheral, generative filaments. It is a diphasic organism whose
haploid number of chromosomes is 10.
The spermatium is liberated when its
nucleus is in prophase, and the division
is completed when the spermatium
makes contact with the trichogyne.
The spermatium appears to have no
distinct wall at the time of its liberation, but develops one by the time it
makes contact with the trichogyne.
The usually bifurcated trichogyne of
this species has no perceptible nucleus
at any stage of development. No auxiliary cells occur in this plant, but there
are many nutritive cells produced by
the sterile laterals and the gonimoblast
filaments (Mullahy, 1952).
Lemanea torulosa (Roth) C. Agardh 1814