(165.) L. Canadense, Kindb. (n. sp.)

Tufts loosely cohering, nearly without rhizoides, dark green, blackish below. Stem about 1 cm. high, nearly simple. Leaves squarrose, flexuose, undulate and not recurved at the borders, when dry curled-sublingulate, acute, entire below the middle, coarsely and unequally serrate above, not margined; lower basal cells rectangular and sub-pellucid, the upper at the middle quadrate, the uppermost rotundate, slightly,papillose; costa finally brown, short excurrent. Dioecious; only female plants found.

In this species the leaves are larger than in the European species. It is peculiar that this genus has not been represented before in the North American Moss-Flora.

On stones in the Sydenham River below Jones Falls, Owen Sound, Ont., Sept. 17th, 1890. (Macoun.)