Staurastrum punctulatum

NEW YORK
BOTANICAL
GARDEN

Fig. 10. STAURASTRUM PUNCTULA
---! fUM.

NEW YORK BOTANICAL QARDEN

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STAURASTRUM PUECTULaTUM, 3RE3. - Fresh-water Algae of the United
States page IS, February 1872. (Smithsonian contribution to
knowledge, 241).

ST, parvmn. punctulato-granulosum; semicellulis enormlter ellipti-
cis, dorso late rotundatla, a vertice triangularibus; angulis
non produetis, obtuse rotundatis; laterlbus modice retusis.

Diam.-Lat, 1/7500’» « .0012".

Syn.-S. pono tula turn, BREBISSOH, BALI’S, British Desmidieae,

BA3E1JH0RST, Flora Europ. Algarum, Sect. Ill, p. 208,

Hab.-Pennsylvania; WOOD,

Small, punctulate-granulate; semicells irregularly elliptic,
with the dorsum broadly rounded from the vertex triangular;
angles not produced, obtusely rounded; sides somewhat retuse.

REMARKS,-This desmld Is exceedingly common around Philadelphia,grow-
ing in the greatest abundance upon the face of wet dripping rooks.

It Is represented, fig, 10, pi. 13,

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