Weald of Sussex, Mr. Mitten.

26. P. sessile. B. & S. Very minute, almost stemless; l. lanceolate-subulate, denticulate more than two-thirds from summit, rigid, with an almost excurrent nerve; caps. sessile small, rounded, brownish: monoicous.

Clay and chalky heaths, rare. Autumn, Winter.

var. β. stenophyllum. l. shorter, linear-lanceolate, slightly serrulate.

27. P. recurvifolium. Dicks. Minute, st. almost none; l. lingulate, rarely linear-lanceolate, erect, frequently recurved, denticulate at the apex, with a strong generally excurrent nerve; caps. roundish ovate, nearly sessile.

Heaths and fallows. Autumn, Winter.

b. Mature plants without confervoid shoots.

28. P. muticum. Schreb. Minute, almost stemless; l. convolute, broadly ovate, tapering pointed, concave, toothed above, nerved nearly to the apex; caps. round, reddish, erect, sub-sessile.

Moist banks and fallows. Autumn, Spring.

var. β. minus, leaves entire.