b. Leaves squarrose.
21. S. squarrosum. Pers. St. 4-12in. rigid, often forked, with long deflexed attenuated branches; l. ovate-acuminate acute, recurved; caps. large on a longish pedicel.
Bogs. VI. VII.
3. ARCHIDIUM. Bridel.
22. A. phascoides Brid. St. 1/4in., second year branched sometimes 1in.; fertile branches short, barren ones longer, slender, and with more distant leaves; l. lanceolate pointed, upper ones longest, entire, nerved nearly to or beyond apex; p.l. ovate-lanceolate, toothed near the apex, nerve excurrent.
Moist clayey or chalky banks, &c. III. IV.
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.
