Sect. VI. St. more or less regularly pinnate; l. falcato-secund, two or singly nerved, or nerveless, areolæ narrowly linear, quadrate at basal angles; caps. sub-cylindrical incurved; lid large, shortly rostellate.
a. Monoicous.
513. H. Breadalbanense. Buchanan White. "St. procumbent or sub-erect, covered with villi; vaguely pinnate; l. secund ovate-lanceolate concave, nerve strong single, reaching about half way, margin of base slightly recurved; sub-denticulate."
Breadalbane Mts. and Ben Lawers 1865 (Dr. F. B. White). Fruit not known.
514. H. hamulosum. Frölich (?) St. 1in. or more, procumbent pinnate; br. hooked at apex; l. circinnate-secund, much curved, tapering into a long slender sub-serrulate point from an ovate-lanceolate base, nerveless; caps. sub-cylindrical curved, tapering at base, lid conical pointed:
Alpine grassy declivities. Summer.
var. β. micranthum. smaller, l. shorter pointed, and
faintly two-nerved; caps. more oval, with an
obtuse lid. Ben Lawers, &c.
b. Dioicous.
515. H. rupestre. Buchanan White. St. procumbent, covered with very short villi, irregularly pinnate; l. strongly falcato-secund, lanceolate acuminate from a wide base, much curved; obscurely two-nerved, margin plane, scarcely denticulate.
Ben Lawers, August, 1865. Fr. unknown.
