676 musci. (mosses.) 



shorter. — On dry rocks. Var. setosum : brandies more elongated and slender , 

 leaves attenuated, of a yellowish silky hue. — Base of trees, in dry places. 



* * Pedicels rough. 



59. H. rutialmlisili, L. Monoecious ; stems 3' - 5' lorg, prostrate or 

 arcuate, with an irregular ramification ; branches ascending ; leaves pale green, 

 broadly ovate and ovate-lanceolate, concave, serrulate, thiD, shining, substriate 

 only when dry, costate above half-way ; capsule oval or o'jlong-cernuons ; annu- 

 lus large ; perichajtial leaves recurved ; vaginula emergent, pilose : a large 

 species. — On the ground, in wet and springy places. (Eu.) 



60. H. pltlllfidsum, L. (Bryol. Europ.) Monoecious; stems 3' -4' 

 long, creeping branches ascending, ramulose ; leaves yellowish-green or reddish- 

 brown, ovate and deltoid-ovate, with a short rather oblique point, serrulate above, 

 semicostate, cstriate ; capsule gibbous, oval, inclined ; annulus narrow ; only 

 the upper half of the pedicel scabrous. (H. pscudo-plumosum, Brid., Mull.; 

 also H. chrysostomum, Michx.) — Alleghany Mountains. (Eu.) 



61. II. jpoptlleum, Hedw. Monoecious ; .stems 2' -3' long, irregularly 

 branched; branches ascending or arcuate; leaves gradually and narrowly lance- 

 olate, acuminate, serrulate above ; the costa continuous ; capsules numerous, 

 small, roundish-ovate, subcrect ; a small species, with yellowish silky foliage. 

 (H. reflexum, James in Proceed. Acad. Philad., 1855.)— Rocks and trunks of 

 trees, in hilly districts. (Eu.) 



62. H. Feisdleri, Sulliv. (Muse. Bor.-Amer. No. 334.) Polygamous 

 (staminate, pistillate, and hermaphrodite flowers on the same plant) ; stems 

 1-2' long, creeping; branches erect, simple or ramulose; leaves ovate-lanceo- 

 late, serrulate, semicostate ; capsule oval-oblong, suberect, rarely unequal and 

 inclined ; ciliolas of the peristome rudimentary or absent ; operculum conic, with 

 a short obtuse rostrum ; pedicels slightly scabrous below, smooth above : resem- 

 bles the European H. velutinum, L. (Leskea Fendleri, Sulliv. in Mem. Amer. 

 Acad. n. ser. 4, p. 170, 1. 1.) —Dry locks, Santa Fe, New Mexico, Fendler. 



63. H. refflexMMl, Starke. Monoecious; stems procumbent, filiform, 2' - 

 3' long ; branches crowded, slender, arcuate ; leaves rather distant, decurrent. 

 broadly or deltoid-ovate, suddenly and narrowly lanceolate, spreading at then- 

 point, serrulate, heavily costate to the apex ; capsule globose-ovate, horizontal. 

 |H. subtenue, James, I. c.) —Rocks, and base of trees, White Mountains of New 

 Hampshire, Oakes, James. (Eu.) 



64. II. SMirloi, Web. & Mohr. Monoecious ; resembles the last species ; - 

 but is much larger, and has a slenderer costa extending about half-way up the 

 leaf. _ White Mountains of New Hampshire, Oakes. (Eu.) 



65. II. riVStlare, Bryol. Europ. Distinguished from H. rutabulum by 

 its somewhat larger size, more rigid stems, firmer, wider, shorter, and more sud- 

 denly acuminated leaves, with a heavier costa, papillose pedicels (l'-U' long), 

 and essentially by its dioecious inflorescence. — Wet rocks, mountains of New 

 England and of Pennsylvania. (Eu.) 



66. M. rVovse-AnsIiae* Sulliv. & Lcsqx. (Muse. Bor.-Amcr. No. 338.) 

 Dioecious; stems U 2 '-2' long, rather stiff; main divisions arcuate-ascending, 



