672 musci. (mosses.) 



32. H. ocliraceum, Turner. (Muse. Bor.-Amer. No. 305.) Dioe- 

 cious ; stems and branches extended ; leaves varying from ovate-lanceolate to 

 elongated oblong-lanceolate, more or less contorted, concave, falcate, striated ; 

 costa single or forked, extending to the middle ; capsule annulate, oval, incurved, 

 with a short erect collum. (H. caulcscens, Sulliv. 8p Lesqx. ined.) — Mountains 

 of New England, Oakes, Eaton, Frost, James. (Eu.) 



33. H. iiaoBStaBSSSiBJ, Wils. in James, Enum. 1. c. (Muse. Bor-Amer 

 No. 306.) Not unlike the last in general aspect; but a smaller species, with 

 monoecious inflorescence ; differing from H. palustre by its broad annulus ; and 

 from H. alpestre by its leaves longer and more suddenly acuminated from a 

 broad-ovate base, subsquarrose, more or less falcate-secund, with reflexed and dis- 

 tinctly serrate margins, a shorter costa, and a looser reticulation. (H. rivulo- 

 rum, Sulliv. $* Lesqx. ined.) — White Mountains, New Hampshire, Oakes, James. 



§ 1 1. CALLIERGON, Sulliv. — Stems erect, ascending ; the divisions few, simple 

 or subpinnately branched, terete, turgid: leaves more or less closely imbricating, 

 ovate and oblong, obtuse, deeply concave, not striate ; membranous, shining ; cellules 

 minute, linear ; costa variable : capsule oblong, unequal, horizontal : operculum 

 convex-conic : rather large species, mostly found in wet places. 



34. M. CUSpidatlim, L. Dioecious; stems 5' -7' long; main divisions 

 simply pinnate, and, like the branchlets, cuspidate ; leaves pale yellowish-green, 

 oblong-ovate or oblong, obtusely pointed, shortly bicostate ; cellules at the basal 

 angles large, subquadrate and pellucid ; capsule gradually tapering into the 

 pedicel, shortly operculate, and broadly annulate. — Grassy marshy places. (Eu.) 



35. M. SclBi'fetoeri, Willd. Dioecious ; much like the preceding, but 

 easily known by its bright red stems, visible through the pale green or fulvous 

 foliage, obtuse branches, perichtetial leaves not striate, and the absence of an 

 annulus. — On the ground, in moist woods. (Eu.) 



36. H. cordifoliunn, Hedw. Monoecious ; stems 6' - 8' long ; divisions 

 simple or very sparingly branched ; leaves large, rather distant, spreading, ovate- 

 oblong, obtuse, costate nearly to the apex, decurrent ; basal cellules large, pel- 

 lucid ; capsule gibbous, oblong, exannulate. — Swamps. (Eu.) 



37. H. SCOi-paoklcs, L. Dioecious; stems robust, 7' -10' long, flexu- 

 ous-erect or decumbent; the divisions remotely and irregularly ramulose ; 

 branchlets more or less falcate at the apex ; leaves dark green or purplish- 

 brown, broadly ovate, obtuse, flaccid, ecostate ; the margins above usually 

 inflexed. — Bogs and springy places. (Eu.) 



38. II. Straminenm, Dickson. Dioecious; stems 6' -8' long, very 

 slender, erect, mostly simple; leaves straw-colored, ovate-oblong, obtuse, not 

 crowded, costate beyond the middle ; annulus absent. — Sphagnous swamps, 

 New England. (Eu.) 



39. H. trifariUHl, Web. & Mohr. Dioecious; closely resembling the 

 last, but a larger species, very brittle when dry ; leaves brownish-green, some- 

 what 3-ranked, more closely imbricated, not so long, broader and more obtuse, 

 and only semicostate ; capsule more turgid, and broadly annulate. — Cranberry 

 marshes, Northern Ohio. (Eu.) 



