Decades of North American Lichens.

CLARA E. CUMMINGS, T. A. WILLIAMS AND A. B. SEYMOUR.

152. Ramalina pollinarella, *Nyl.*

(Ram. minuscula, sub. sp. pollinarella, *Nyl.*)

*On sand stone.*

Dell Rapids, So. Dakota, September, 1894.

Coll. Thomas A. Williams.

Yale University Herbarium

YU.239886