Lloyd Mycological Writings V4.pdf - MykoWeb

My thanks are extended to Mr. Willis H. Ropes, Salem, Mass.,
for opportunity to examine a formalin collection of Lysurus borealis
containing a number of eggs. In the egg of Lysurus borealis the
umbilical plates extend from the base of the volva to about one-half
.
the circumference, and the markings of these plates are seen on fig.
a, which is a photograph, natural size of the base of an egg. The
number of plates correspond with the number of arms the specimen
will develop. In the very young plants they are attached to the
stem, and along the dorsal suture of each arm, or, perhaps, to speak
more correctly, the young plants develop from these plates, the
attachment being as stated. The arms of Lysurus borealis are wrinkled
transversely, excepting on the back of each arm, where there is a
longitudinal suture. These sutures might be called umbilical scars,
for they correspond with the umbilical scar in the mammal.
Fig. 510
Lysurus borealis.
Photograph, natural size, by Hollis Webster. The specimen on the right has
the gleba washed away.
As an illustration of how errors will get started and persist in
mycology, years ago Patouillard published Lysurus Mokusin as
having the gleba mass attached to the outside of the arms, and he
deduced that Anthurus must have it attached to the inner side of
the arms. As a matter of fact, there is little relation between Anthurus
and Lysurus; Lysurus has free arms at the base of a columnal stem,
and Anthurus consists of a hollow tube, having the limb divided into
segments and bearing the gleba on the inner side of the segments.
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