Ord. V. Tribe TI. MUSCI VAGINULATI OLOCARPI. 
911 
** Theca destitute of furrows. 
A. Exterior peristome shorter than intei'ior. 
14811 Stems somew. branch. Lvs. lin. obt. ent. reticulat. Thoca obovate recurved subcernu. Fruitstalk very long 
14812 Stems branched. Leaves ovate cuspidate reticulated shorter than nerve, Theca curved pyriform pendulous 
14813 Stem elongat. branch. Lvs. lane, carin. ac. serrated reticulat. Theca pyrif. erecto-ceniu. Fruitst. very long 
14814 Stems short, Leaves lanceolate acute plane serrated at the points reticulated, Theca pyriform nearly erect 
B. Peristomes equal. 
\ 1. Leaves without a thickened mat-gin. 
14815 Stems slightly branched. Leaves subul.-setaceous flexuose serrated: nerve very broad, Theca pyrif. pendul. 
14816 Stems branched. Leaves closely imbricated broadly ovate concave entire obtuse : nerve running nearly to 
the point, Theca obovato-cylindraceous pendulous 
14817 Stems simple. Leaves rigid lanceolate: the upper ones the narrowest and longest ; all of them plane serrul. 
nerve disappearing below the summit, Theca oblong-subpyriform cernuous 
14818 Stems simple, Lvs. lane, reticulat. slightly serrul. at point : nerve disappear, bel. summ. Theca obov. pendul. 
14819 Stems branched. Leaves closely imbricated broadly ovate suddenly and sharply acuminated subserrulate 
very concave : nerve disappearing below the point, Theca ovato-pyriform pendulous 
14820 Stems branch. Leaves closely imbricated more or less broadly ovate acuminulate very concave reticulated 
entire : nerve running nearly to the point, Theca clavate cernuous 
14821 Lvs. obovato-spathulate acute serrated undul. : nerve running to the point, Theca ob!ong;o-ovate pendul. 
14822 Stems short, Leaves obovate twisted when dry entire : their nerve produced into a hair-like point ; their 
margins slightly thickened, Theca oblong pendulous 
14823 Stems short, Lvs. erect lane, acuminated serrated above : nerve reach, to point, Theca oblon.pyrif pendul. 
14824 Stems rig. elongat. branch. Lvs. closely imbricat. erect lane, somew. obt. subserrul. at apex : marg. revolutej 
nerve reaching to the points, Theca oblongo-ovate pendulous 
\ 2. Leaves with a thickened margin. 
14825 Stems elongated, Leaves obovato-rotundate very obtuse reticulated : their margins thickened entire ; 
nerve disappearing below the point, Theca ovate pendulous, Lid shortly rostrate 
14S26 Stems elongated. Leaves undul. ligul. reticulated : their margins thickened denticul. ; nerve reaching a 
little beyond the point, Theca ovate pendulous. Lid conical 
14827 Stems elongated, Leaves broadly ovate reticulated : their margins thickened denticulated ; the nerve 
reaching a little beyond the point, Theca ovate pendulous, Lid rostrate 
14828 Stems elongated, Leaves ovate acute reticulated : their margins thickened serrated; nerve reaching a 
little beyond the point, Theca ovate pendulous, Lid shortly rostrate 
14829 Stems elongated^ 'Leaves lanceolate acute reticulated: their margins thickened denticulate: nerve ge- 
nerally disappearing below the summit, Theca oblongo-ovate pendulous. Lid hemisph. mucronulate 
14830 Stems elongated. Leaves obovate acute reticulated : their margins thickened denticulated above ; nerve 
running beyond the point, Theca ovate pendulous. Lid conico-hemispheric. obtuse 
* Calyptra naked. 
14831 Lvs. lane, undul. : their margins plane denticulat. ; their nerve winged, Theca cylind. curved. Lid subul. 
14832 Lvs. lane. rig. ent. : their sides in vol. their nerve broad impress, with furr. Theca obi. suber. Lid conical 
** Calyptra hairy. 
14833 Leaves lanceolate-subulate : their margins involute ent. terminating in a pellucid hair-like point, Theca 
ovate obtusely quadrangular furnished with an apophysis, Lid conical 
14834 Leaves lanceolate-subulate : their margins involute entire; their points acumin. colored subserrated, 
Theca ovate obtusely quadrangular furnished with an apophysis. Lid conical 
14835 Leaves lineari-subul. obtuse : their margins especially towards the top invo). subserrulate, Theca ovate 
subangulate furnished with a minute apophysis, Lid conical acuminate 
14836 Stems elongated. Leaves patent lineari-subulate : their margins plane serrated as well as the points of the 
keels, Theca erect ovate quadrangular with an evident apophysis 
« Leaves with their margins of the same color 
Leaves shorter with their margins pellucid 
14837 Stems elongated branched, Leaves patent subulato-lanceolate : the margins plane serrated as well as the 
points of the keels, Theca subovate with an indistinct apophysis 
14S38 Sterns elongated branched. Leaves erecto-patent lanceolate acute : their margins plane serrated, Theca 
erect cylindrical destitute of an apophysis 
14839 Stems short. Leaves linear-lanceolate obtuse : their margins plane serrated principally at the extremity 
and at the summit of the keels, Theca nearly erect cylindrical without an apophysis 
» Fruitstalks 2 inches long. Stems simple 
iS Fruitstalks very short. Stems branched 
2241. Folytrichum. From sraXy?, many, and -r^'^*?, hair, on account of the numerous hairs of the 
calyptra. Easily distinguished by the rigidity of the leaves and the square form of the theca, which is gene- 
