(309.) U. Drummondii, Brid.; Lesq. & James, Mosses of N. America, 161.

Canada. (Drummond.) Miquelon Island. (Delaware.) On trees at New Harbor and Shoal Harbor,Newfoundland. (Rev. A. Waghorne.)

(310.) U. Ludwigii, Brid.; Lesq. & James, Mosses of N. America, 161; Canadian Musci, No. 112.

Orthotrichum Ludwigii, Drumm. Musc. Bor. - Am. No. 146.

Upon trees about Lake Superior. (Drummond.) Pictou, N.S. (McKay.) On trees, Bass Eiver,'Fredericton and Grand Lake, N.B. (Fowler's Oat.) On trees, Tobique River, N.B. (Hay.) On trees, Tay, York Co. and Canaan Forks, Queen's Co., N.B. (J. Moser.) On trees at Whycocogmah,Cape Breton; Jupiter River, Anticosti; and along Ste. Anne des Monts River, Gaspé Co., Que.; on trees, Rustico Bay, P.E.I.; on trees, Sudbury Junction and at] Elliott's Falls, Victoria Co., Ont. (Macoun.) On trees at New Harbor, Topsail and Blaketown, Newfoundland. (Rev. A. Waghorne.)

(311.) U. curvifolia, Brid.; Lesq. & James, Mosses of N. America, 161.

Canada. (Drummond fide Schimp.) Shore of Lake Huron opposite the Fishing Islands, Bruce Co., Ont. (Macoun.) Greenland. (Fl. Gr.)

(312.) U. Bruchii, Hornsch.; Lesq. & James, Mosses of N. America, 162; Canadian Musci, No. 453, in part.

On leaning trees by a brook a little above Port Dover, Lake Erie, Ont. (Macoun.) Upper Canada (Ontario.) (Drummond.) On small trees at Coquhilla River near New Westminster Junction, B.C. (Macoun.) New Harbor, Newfoundland. (Rev. A. Waghorne.)

(313.) U. obtusiuscula, C. M. & Kindb., (n. sp.); Canadian Musci, No. 523.

U. Bruchii, Canadian Musci, No.'453, in part.

Nearly allied to Ulota Bruchii, differing principally in the leaves being less narrowed sub-obtuse, also in the longer collum of the wide-mouthed, not constricted capsule.

On small maple trees in thickets along the Coquhilla River near New Westminster Junction, B.C., April 26th, 1889. (Macoun.) On trees near Fort Rupert, Vancouver Island, 1885. (Dawson.)

(314.) U.subulata, C. M. & Kindb., (n. sp.)

Tufts small, stem slender, sparingly short-branching, when dry sub-julaceous. Leaves small, when moist squarrose, patent, very papillose, from a perfectly ventricose base narrowed into the subulate-piliform acumen, flexuous, erect at the margins; costa very thin, rufescent, vanishing in the acumen; cells uniform, comparatively large and incrassate. Capsule small, cyliudric-clavate; lid apiculate; pedicel long.

This species has nearly the habit of Macrocoma, a section of the genus Macrowitrium, C. Mueller.

On small trees in thickets, Black's Farm, along the Coquhilla River, near New Westminster Junction, B. C, April 26th, 1889. (Macoun.)

(315.) U. subulifolia, C. M. & Kindb., (n. sp.)

Differs from Ulota subulata in the stem being more branched, the leaves when dry twisted or subcrisped, sparingly papillose, revolute at the basal margin at least at one side; lower basal cells elongate, alar indistinct; capsule very small, short-obovate, costate, finally sub-cylindric; pedicel not very long; calyptra nearly naked.

On small trees in thickets, Black's Farm, along the Coquhilla River, near New Westminster Junction, B. C, April 26th, 1889. (Macoun.)

(316.) U. scabrida, Kindb., (n. sp.) U. Americana, Canadian Musci, No. 115.

Tufts large and dense, blackish brown below, green or dark green above. Stem much divided. Leaves crisped when dry, squarrose-falcate when moist, very papillose and opaque, revolute from the base to the middle, comparatively short (as in U. curvifolia), from an enlarged base suddenly sublinear, nearly obtuse; basal cells elongate, alar or marginal distinct and hyaline. Capsule sub-oblong, passing into the long collum; teeth not reflexed, pale; calyptra very hairy, lobate; pedicel long.

This fine species resembles U. crispa more than U. curvifolia, and is not much allied to the last. The true Ulota curvifolia has the leaves straight and erect-patent when moist, and faintly twisted when dry.

Abundant on immense boulders between Cathedral Mountain and Mount Stephen three miles below Hector, Rocky Mountains, July 29th, 1885; also in the same place and on boulders by the torrent at Hector, Aug., 1890. (Macoun.)

(317.) U.Americana, Mitt.;Lesq.& James, Mosses of N. America, 162; Mitt. Journ. Linn. Soc. VIII, 26.

U. Hutchinsiae, Schimp.; Canadian Musci, No. 117. Orthotrichum Hutchinsiae, Drumm. Musc. Bor. - Am. No. 147.

On rocks at Bass River, Kent Co., N.B. (Fowler's Gat.) On rocks at Truro, N.S.; and at Madeline River, Gaspé Co., Que.; quite common on rocks along the north shore of Lake Superior, especially above Michipicotin. (Macoun.) Upon rocks, rarely on trees, Lake Superior. (Drummond.) Pictou, N.S. (McKay.) Lake Huron. (Br. Todd.) British America. (Drummond, No. 153), with U. Bruchii and U. crispa. (Mitten.) Lindberg makes out No. 153 to be U. crispa var. minor, Lesq. & James which these authors make theirs to be. The following copy of Drummond's ticket may throw some light on the seeming difficulty. "On trees in Upper Canada, and upon rocks called Hell's Gate, below Norway House " (on Hay's River). It is extremely probable that Drummond's No. 153 that fell into the hands of Mr. Mitten had a specimen gathered at "Hell's Gate," and which he named U. Americana, the other being as Lesq. & James, say V. crispa var. minor. I have never observed a species of Ulota that grew indiscriminately on rocks and trees, and therefore, propose to place U. Americana at "Hell's Gate," and hence a rock species.

(318.) U. crispa, Brid.; Lesq. & James, Mosses of N. America, 162; Canadian Musci, No. 113, in part.

On trees, Tay Forks, York Co., and Canaan Forks, Queen's Co., N.B. (J. Moser.) On trees along theTobique River, N.B. (Hay.) On trees, Bass River, Kent Co., also at Fredericton and Grand Lake, N.B. (Fowler's Cat.) On trees at Pirate's Cove and Truro, N.S.; along the Gaspé coast, Que.; and frequent on trees in Hastings and Adding-ton counties, Ont. (Macoun.) Very common on trees at New Harbor, Newfoundland. (Rev. A. Waghorne.) Pictou, N.S. (McKay.)