670 (70) Musci. (mosses.) 



somewhat obtuse, serrulate; costa ceasing near the apex. — Wooded hill-sides, 

 on the ground. (Eu.) 



20. H. diversifdlium, Bryol. Europ. Dioecious; very near the pre- 

 ceding, but has a more simple ramification, obtuse turgid branchlets, and leaves 

 more densely imbricating ; those of the stem and branches deltoid-ovate, acumi- 

 nate, sulcate ; those of the branchlets ovate-obtuse. — Sandy soil ; hilly poc 

 tions of Southern Ohio, Lesqiiereux. (Eu.) 



21. H. Sdscii, Schwsegr. Dioecious; stems prostrate, with a somewhat 

 fasciculate ramification; branches elongated, turgid, terete, obtuse, flaccid; 

 leaves densely imbricated, ovate from a broad auriculate base, apiculate, very 

 concave, serrate ; costa extending more than half-way. — On the ground, mostly 

 in hilly and wooded districts. — A large species, with golden yellow foliage: 

 does not well associate with the four preceding species in a natural arrange- 

 ment. 



§ 8. EHYNCOSTilGIUM, Bryol. Europ. — Stems prostrate, irregularly branched, 

 more or less compressed : leaves ovate and ovate-lanceolate, unicostate or sliortly bi- 

 costate; aredlation somewhat loose, elongated-rhomboidal : capsule oval and inclined, 

 or oblong and cernuous : operculum rostrate. 



22. H, serrulatuna, Hedw. Monoecious ; leaves pale green, membra- 

 nous, lax, bifariously directed, spreading, ovate-lanceolate, acuminate, serrulate, 

 costate beyond the middle ; capsule oblong, cernuous. — On the ground, in dry 

 woods, forming thin strata; occasionally condensed, the branches becoming 

 cylindrical. 



23. H. deplanatum, W. P. Sch. Dioecious ; stems and obtuse branch- 

 es very flat, profusely i-ooting underneath their whole length; leaves bright 

 green, shining, crowded, distichously imbricating, broadly ovate-lanceolate, ser- 

 rulate, shortly bicostate ; capsule gibbose-oblong ; annulus nan'ow. (H. depres- 

 sum, James, in Proceed. Amer. Acad. 1855.) — Dry woods, in close, thin mats, 

 near the ground, on stones and roots of trees. — Fruit rai'e. 



24. II. rusciforme, Weis. Monoecious; branches somewhat arcuate, 

 fasciculate, elongated, very slightly compressed ; leaves oblong-ovate, shortly 

 acuminate, sharply serrate, sometimes sulbsecund, costate nearly to the apex ; 

 capsule oval, rather incm-ved; annulus large. — Mountain rivulets : frequent. — 

 A rather rigid species, with lurid green foliage of a firm textm-e. (Eu.) 



§9. EAPHIDOSTEGITJM, Bryol. Europ. — ^Sifems prostrate, subcompressed ; 

 ramification irregular : leaves subsecund, oblong-lanceolate, ecostate or shortly bicos- 

 tate ; the margins reflexed; areolation minute, linear, flexuous ; the 3-5 cellules 

 at each of the basal angles large, oblong, inflated : capsule oblong, suberect or cer- 

 nuous : operculum subulate : small species. 



25. H. dcmissum, Wils. Monoecious ; stems filifoiTQ, elongated, spar- 

 ingly branched ; leaves yellowish, shining, rather lax, narrowly acuminate, 

 ecostate ; capsule narrowly elliptical, horizontal, cernuous. (H. Eugelianum, 

 Bryol. Europ.) — Mountainous districts. — Usually grows in thin flakes, on the 

 inclined faces of moist exposed rocks : variable. When much shaded, and on 



