Yale University Herbarium

YU.091891

PHYCOTHECA BOREALI-AMERICANA. COLLINS, HOLDEN, AND SETCHELL.

808. Zygnema chalybeospermum Hansg.

Hansging, Hedwigia, p. 257, 1888.

De Toni, Sylloge Algarum, Vol. I, p. 728, 1889.

In ravine, Boswell, near Berkley, California, April 14, 1901.

N. L. GARDNER.

a. Spores immature.

b. Spores mature.

b.

Yale University Herbarium

YU.106566