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 apiculate, with a thickened margin, dorsal wing reaching to, and broad at, the base, strongly nerved to or beyond apex. caps. elliptical erect, symmetrical; lid conical, acutely rostellate; barren fl. axillary.

Shady banks, frequent.

b. Dioicous.

398. Hedw. St. 1-2in. tufted, erect, radiculose; l. lower scattered, small, upper larger crowded, ovate-lanceolate obtuse, apiculate, margin not thickened, almost entire, not nerved to apex, the latter sometimes toothed; caps. small oval-oblong, sub-erect; lid large convex rostrate.

Wet mountainous rocks.

399. Hedw. St. (in var. β. only found in Britain) 3-12in.; l. linear-lanceolate or ligulate entire, obtuse, incurved when dry; caps. sub-erect obovate, slightly incurved; lid rostrate, as long as capsule; barren fl. axillary or terminal."

var. β. polyphyllos. "branches arcuate, l. wider, rather acute, more strongly nerved, serrulate at apex, barren fl. numerous axillary." [Wils. Bry. Brit.] Moist shady rocks on mountains. W. I.

II. Fructif. lateral.

400. F. adiantoedes. Hedw. St. 1-2in. branched, leafy; l. ovate-lanceolate, finely serrulate below, dentate at apex, nerved almost or quite to apex; border sometimes