A Synopsis of the British Mosses / Containing Descriptions of All the Genera and Species, (With Localities of the Rarer Ones) Found in Great Britain and Ireland, Based Upon Wilson's "Bryologia Britannica," Schimper's "Synopsis," Etc.

by Charles C. P. Hobkirk

4. PHASCUM. Linn.

Sect. I. (Ephemerum.) Almost stemless, capsule immersed, barren fl. gemmiform at base of, or near to, fertile fl.

a. Growing from a conferva-like thallus, columella fugacious.

23. P. serratum. Schreb. “Stemless, leaves lanceolate, nerveless (?) serrated, connivent; capsule large roundish ovate, sub-sessile.” (Wils.)

Sandy banks or fallows. Spring or Autumn.

var. β. angustifolium. “Leaves narrower, linear-lanceolate, obscurely toothed; caps. smaller.”

24. P. cohærens. Hed. Stemless, very minute; l. ovate-lanceolate, keeled, erect, nerved to apex, and serrated about half way from summit; capsule immersed sub-sessile.

On the ground. Winter.

25. P. tenerum. Bruch. Inconspicuous; l. broad ovate-lanceolate, slightly denticulate at apex, very flaccid; caps. small, pale yellow, calyptra conical. Bry. Europ. vol. I.

On the mud of dried-up pools. Winter.