Page:Books from the Biodiversity Heritage Library (IA synopsisofbritis00hobk).pdf/52

 sheathing; caps. erect obovate or elliptical; lid with a long oblique beak.

Subalpine rocks.

16. DICRANUM.

a. ( Schimp.)

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. 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.

var. β. strumiferum. caps. unequal, base strumose.

St. rooting in all parts, leafy; l. spreading, nerve slightly excurrent; infl. monoicous; caps. strumose.

72. 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.

var. β. Wahlenbergii. l. flexuose, much attenuated, above narrower and longer, yellowish; caps. short, with a very prominent struma.