. Manual of the mosses of North America [microform]. Mosses; Mousses. Uypnum.] BRYACE^. 321 oval, the alar quadrate or transversely oval, not enlarged; branch-leaves much smaller, ovate-acuminate, all minutely ser- rulate ; parapliyllia few, leaf-like. Capsule oval or oblong, curved. Peristome large ; cilia 2 or 3. — Jleterocladinm, Bruch & Scliimp. 4. H. dimorphum, Brid. Di(ccious: j)Iants loosely ces- pitose, entwining, rigid, yellowish green : stem-leaves ovate- lanceolate, long-acuminate, broadly cordate and decurrent at base, curved back from the middle ; costa very obscure, short and
. Manual of the mosses of North America [microform]. Mosses; Mousses. Uypnum.] BRYACE^. 321 oval, the alar quadrate or transversely oval, not enlarged; branch-leaves much smaller, ovate-acuminate, all minutely ser- rulate ; parapliyllia few, leaf-like. Capsule oval or oblong, curved. Peristome large ; cilia 2 or 3. — Jleterocladinm, Bruch & Scliimp. 4. H. dimorphum, Brid. Di(ccious: j)Iants loosely ces- pitose, entwining, rigid, yellowish green : stem-leaves ovate- lanceolate, long-acuminate, broadly cordate and decurrent at base, curved back from the middle ; costa very obscure, short and geminate ; branch-leaves suberect, ovate, conca\c, obtuse, imbricate; ])araphyllia few and small, filiform or oval, ciliate; pericha-tial leaves long, ecostate, reflexed from the mi. H. prOCUrrens. Did'cious: plants yellowish green; stems arcuate, ])rocumbent; branches irregidarly pinnate or bipinnate: stem-leaves divergent, comi)ressed, gradually nar- rowed to a iiliform ])oint, minutely serrulate on the borders, with two unequal costai vanishing in the middle; areolation elongated in the michlle of the leaves, oblong on the margins and toward the ajiex, all smooth and pellucid ; branch-leaves unequilateral, obtuse; the perichajtial broadly ovate, convolute at the bas€% spreading at the apex: capsule oval, horizontal, long-pedicellate. — Pteroooiiiurn procurrens^ Mitten, Journ. Linn. Soc. viii. 37, t. 7. IIab. British America (Drummond). Of looser habit than the last. Pedicel an inch long. Subgenus III. TIIUIDIUM. (PI. 6.) Primary stems densely rooting, the secondary 1-3-j/mnately ramulose. Stem-leaves larger, decurrent, cordate-triangidar, more or less long-acmninate, strongly costate, ])ai)illate on the lower face or on both; paraphyllia numerous and nudtiform; branch-leaves smaller, ovate-lanceolate, concave, imbricate; areolation small, round-hexagonal, sometimes long-linear at t. Please note that these images are extracted from scanned page images that may have bee
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