sheathing; caps. erect obovate or elliptical; lid with a long oblique beak.
Subalpine rocks. VI.
16. DICRANUM. Hedw.
a. (Dicranella. Schimp.)
Sect. I. Stem long, rooting in all parts; leaves spreading flexuose, papillose on both sides, crenulate in margin, not nerved to apex; infl. monoicous; beak of lid shorter than caps.
71. D. polycarpum. Ehr. L. bent, flexuose, often
recurved, lanceolate-subulate or linear-lanceolate, keeled,
margin recurved, somewhat papillose, denticulate at apex,
nerve excurrent; caps. erect, symmetrical, striated, with a
tumid neck.
Alpine rocks. VII. VIII.
var. β. strumiferum. caps. unequal, base strumose.
Sect. II. St. rooting in all parts, leafy; l. spreading,
nerve slightly excurrent; infl. monoicous; caps.
strumose.
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.
Moist alpine rocks; Ben Lawers. VI. VII.
var. β. Wahlenbergii. l. flexuose, much attenuated, above
narrower and longer, yellowish; caps. short,
with a very prominent struma.
