North American Musci Perfecti.

ISSUED BY A. J. GROUT, PH. D.

179. Gymnostomum rupestre Schleich.

On damp limestone walls in a ravine, West Hill,
Owen Sound, Ontario, Aug. 8, 1930.

(Inextricably mixed with some other accompanying
species.)

Coll. E. A. Moxley.

Det. A. J. G.

Yale University Herbarium

YU.225452