YU.095241

Phcyotheca Boreali-Americana.

Collins, Holden and Setchell.

1983. **Arthrodesmus Incus** Ralfs forma minor West.

West, Trans. R. I. Acad., Vol. XXXII, p. 58, Pl. II, fig. 15, 1902.

In a ditch, North Wilmington, Massachusetts, May 4, 1913.

CHARLES BULLARD.

With zygospores.

YU.095242

Phcyotheca Boreali-Americana.

Collins, Holden and Setchell.

1984. **Staurastrum anatinum** Cooke & Wills.

Cooke & Wills in Grevillea, Vol. IX, p. 92, Pl. CXXXIV, fig. 6, 1881.

Wolle, Desm. of the U. S., p. 139, Pl. LI, figs. 1-2, 1884.
De Toni, Syll. Alg., Vol. I. p. 1221, 1889.

Below dam of a small pond, Wanalancet, New Hampshire,
Aug. 10, 1912.

CHARLES BULLARD.

CHARLES BULLARD.