Page:Books from the Biodiversity Heritage Library (IA synopsisofbritis00hobk).pdf/196

 *lanceolate, tapering to a slightly serrulate point, otherwise entire, nerveless, or sometimes shortly and faintly two-nerved; caps oblong or oval immersed, lid with a short oblique beak: monoicous.

Trunks of trees, rare. Spring.

86. HOOKERIA.

552. Dill. St. 1.3in. procumbent, with irregular complanate branches; l. complanate, large roundish ovate, obtuse, entire, nerveless; areolæ large, hexagonal, pellucid; caps. roundish elliptical, almost pendulous; lid conical, suddenly tapering into a long straight beak: monoicous.

Moist banks, stones in streams, &c.

553. H. & T. St. shorter and more slender, procumbent, sub-pinnate; l. complanate, loosely imbricate, smaller, ovate, suddenly and shortly acuminate, with a thickened border; doubly nerved above half-way, serrulate at apex; areolæ smaller, hexagonal; caps. smaller, drooping, roundish, elliptical; lid as above: monoicous.

Caves, wet rocks, and by rivulets.

87. DALTONIA.

554. H. & T. St. ¼in. tufted, erect, br. fastigiate; l. crowded, sub-erect, linear-lanceolate, acuminate, slightly keeled, entire, nerve vanishing below apex; per. l. small ovate; caps. small oval oblong, sub-*erect, lid large, with a long straight beak.

Sub-alpine moist shady rocks and trees, rare.

88. CRYPHÆA.

555. Dill. St. 1in. decumbent, sparingly branched, sub-pinnate; l. spreading, mbricate,