(398.) P. immersum, Sulliv.; Lesq. & James, Mosses of N. America, 196.

On inundated alluvial soil (in small tufts) along the outlet of Leamy's Lake near Hull, Que., Oct. 4th, 1889. (Macoun.)

(399.) P. pyriforme, Brid.; Lesq. & James, Mosses of N. America, 197.

P. Hookeri, Canadian Musci, No. 146, in part.

On earth in the vicinity of Ottawa. (Fletcher.) Abundant on earth, in damp spots on the commons near the Railway Bridge in Belleville, Ont. (Macoun.) On earth at London, Ont. (J. Dearness.)

(400.) P. megalocarpum, Kindb., Bull. Torr. Bot. Club, XVI., 94; Canadian Musci, No. 147.

Nearly allied to Physcomitrium pyriforme, (Gymnostomum pyriforme, Lindb.); leaves longer, more or less acuminate, distinctly yellow-margined; cells smaller, the upper narrower; capsule larger, sub-globose; lid conic, without distinct beak; calyptra unsymmetrical bilobed with a long acumen; pedicel long.

Collected in May, 1875, and examined by Austin, who concluded it was a large variety of P. pyriforme. Lesq. & James make no mention of it. Remarkably fine specimens were collected again in damp places in meadows and pastures at Cedar Hill, near Victoria, Vancouver Island, May 16th, 1887. (Macoun.) Also found in Oregon (Henderson herb. Cardot.)

(401.) P. Hookeri. Hampe; Lesq. & James, Mosses of N. America, 198; Canadian Musci, 146, in part.

Gymnostornum latifoiium, Drumm. Musc. Bor. - Arn., No. 16.

Low points of the River Saskatchewan, near Carlton House. (Drummond.) On wet earth at Manitoba House, Lake Manitoba, Man. (Macoun.)

(402.) P. turbinatum, C. Muell.; Lesq. & James, Mosses of N. America, 198.

P. strangulatum, Kindb., Ott. Nat. Vol. IV. 62.

On earth at Port Stanley, Lake Erie, June 22nd, 1882. (Macoun.) On earth in ditches at Port Dover and London, Ont. (J. Dearness.)