2274

2274

YU.095556

Phycotheca Boreali-Americana.

Collins, Holden and Setchell.

2274. Staurastrum elongatum Barker.

Barker, Quar. Jour. Mier. Soc., Vol. IX, p. 424, 1869.
Wolle, Desm. of the U. S., p. 130, Pl. XLVI, figs. 11-12, 1884.
De Toni, Syll. Alg., Vol. I, p. 1212, 1889.

On Cephalozia natans, on the edge of a circular pond in
the midst of a Sphagnum bog, south of Lakewood station.
New Hampshire, Aug. 7, 1917.

CHARLES BULLARD.