Didymoprium grevillei

NEW YORK
BOTANICAL,
GARDEN

DIDYMOHPEIDM GEBVILLII, KTZ. Fresh-water Algae of the United States

page 18, February 1872. (Smithsonian contribution to knowledge,241).

D. cellnlis oblongis diametro duplo brevioribus, saturate virid-
ibus. (B.)

Diam. 0.0024"-0.0031•* (B.)

Syn.-D. Grevillii, KUTZING. BABEHBOBST, Flora Eurcp. Algarum, Sect,
III. p. 153*

Hab.-Georgia, South Carolina; Bailey. Pennsylvania; Wood.

Sheath distinct; joints broader than long with a thickened border at
their junction; angles bidentate; teeth angular; transverse
view broadly elliptic. Sporangium orbicular, formed within
one of the two conjugating joints, the endochrome passing
over from one by a narrow connecting tube produced between
the otherwise, but little altered, broken-up single joints.
(?•)

REMARK.-Fig. 13, pi. 1£, represents the end Tiew of a broken filament
of this speoiea.

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