72. D. VIRENS. Hedw. St. 1–3in. branched; l. erect ovate-lanceolate at base, sheathing, running to a long sub-denticulate, almost setaceous prolongation, margins recurved, nerve thick sub-excurrent; caps. cernuous strumose smooth oblong and curved; lid beaked.
var. β. _Wahlenbergii._ l. flexuose, much attenuated, above narrower and longer, yellowish; caps. short, with a very prominent struma.
γ. _serratum._ stems taller; l. recurved from a sheathing base, coarsely serrated.
δ. _compactum._ st. shorter and slender; l. shorter lanceolate from an ovate base, entire, or very slightly toothed at apex; caps. gibbous on a shorter pedicel.
ε. _gracilescens._ l. narrower; caps. smaller.
SECT. III. L. squarrose, or patent spreading.
73. D. PELLUCIDUM. Hedw. St. 1–2in. loosely tufted; l. distant, lanceolate, margins undulate, denticulate, papillose obtuse; caps. shortly ovate; lid conical rostrate; dioicous.
var. β. fagimontanum. st. short, branches slender, l. shorter.
γ. serratum. l. crenato-serrate, with a more acute point; caps. oval or oblong, lid with a slender beak.
74. D. CRISPUM. Hedw. St. ¼in. gregarious, l. subulate from a broadish sheathing base setaceous above, long, spreading flexuose, minutely dentate, nerved to apex; caps. almost erect, oval or obovate, striate; lid with a long oblique subulate beak: monoicous.
75. D. GREVILLIANUM. B. & S. L. with a broad sheathing base, suddenly lanceolate-subulate prolonged, wide-spreading and wavy, entire, nerve broad; caps. ovate, sub-striate, strumose; lid with a beak longer than capsule: monoicous.
“Glen Tilt, at foot of Ben-y-Gloe, 1823, not since found.”—Wils. VIII. IX.
[I have a specimen gathered by Dr. A. O. Black, marked “Esk-no-more.”]
76. D. SCHREBERI. Hedw. St. ½–1in. sub-cæspitose, branched sparingly; l. base broad, suddenly lanceolate-subulate, spreading flexuose keeled, denticulate at apex; caps. ovate-oblong, scarcely strumose, cernuous; lid conical, shortly rostrate; dioicous.
Clayey or sandy soil near streams, rare. X. XI.
77. D. SQUARROSUM. Schrad. St. 1–3in. dichotomous; l. lanceolate from a broad sheathing base obtuse, undulate, entire concave recurved, nerve narrow, reaching nearly to apex; caps. ovate-oblong cernuous; lid long conical, with a short beak.