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Plant Guide > Mosses and Lichens > Mosses > Genus Brachythecium
Genus Brachythecium![]() The plants of this sub-genus are generally large, prostrate or creeping, forming loosely matted tufts ; the stems branch irregularly, the branchlets somewhat regularly branching again, and covered densely with leaves. The leaves are broadly oval and oblong-lance-shaped, usually with folds lengthwise; the apex is acutely pointed, either broadly or narrowly so ; the base is heart-shaped (cordate) ; the vein is single, continuous or vanishing half-way ; the cells are usually smooth and much elongated, the alar enlarged. There are no small leaf-like organs (paraphyllia). The spore-cases are oval or oblong, short, nodding, usually arched with a convex-conical, obtuse, or short-pointed lid ; they are borne on smooth or rough pedicels. The generic name Brachythecium is derived from two Greek words for; short, and; a case, relating to the short spore-case. The peristome is double, the outer teeth being united at the base, slender, lance-shaped, closely and regularly cross-barred, with a distinct median line ; the inner teeth are lance-shaped with 2 to 3 well-developed cilia all attached to a wide basal membrane. There are one hundred and sixty-three species known at present, about forty being found in North America. Brachythecium Novae Angliae Moss Brachythecium Rivulare Moss Brachythecium Starkii Moss |
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