Ord. V. TkibeII. MUSCI VAGINULATA OLOCARPI. 905 
14743 Stems elongat. branch. Lvs. lane. obt. serrulat. at points : nerve vanish, before summ. Theca obi. Lid rost. 
14744 Stems elongat. branch.'Lvs. lane. ent. : summ. never diaphan. ; margins recurv. Theca ovato-obl. Lid rost. 
14745 Stems branch. Lvs. lanc.-subul. : marg. recurv.serratabove very much crisp, when dry, Theca obi. Lid rost. 
14746 Stems short nearly simple, Lvs. lane. acum. straight : nerve broad j margins plane, Theca ellipt. Lid rost. 
14747 The only species 
14748 Stems scarcely any, Lvs. patent obi. rigid : marg. much inflex. Nerve broad, Theca obi. Lid conic, acum. 
14749 Stems short. Leaves patent linear-oblong : their margins recurved, Nerve produced beyond the leaf into 
a white hair-like point, Theca oblong, Lid conical acuminate 
14750 Stems elongated. Leaves oblong carinated patent and recurved, Nerve terminating in a long generally 
diaphanous serrated point, Theca oblong, Lid subulate. Teeth of the peristome united below in a tube 
14751 Stems very short. Leaves oblongo-lanceolate acuminate : the nerve excurrent often forming an apiculus, 
Theca cylindrical. Lid conico-subul. Teeth of the peristome united nearly to the apex into a long tube 
14752 Stems scarcely any, Lvs. broadly obov. cone. Nerve terminating beyond top of leaf in a rather long and 
frequently serrulated point, Theca oblong, Lid shortly rost. Teeth of the peristome united at the base 
14753 Stems scarcely any. Leaves ovate concave. Nerve running beyond points, Theca ovate striated, I^id rost. 
14754 Stems elongat. branch. Lvs. lin.-subul. carinate undulate much twisted when dry, Theca cylind. Lid rost. 
14755 Stems elongat. branch.Lvs.lanc. subul. pat. or recurv. : marg. refl.Theca obl.Lid rost. nearly as long as theca 
14756 Stems short, Leaves lanceolate acum. : the margins of those of the stem remarkably revolute ; perichsetial 
leaves sheathing, their sides involute, Theca oblong. Lid rostrate shorter than the theca 
14757 Stems branched. Leaves linear-lanceolate obtuse : their nerve produced into an apiculus ; the marg. nearly 
plane, Theca oblong. Lid rostrate nearly as long as the theca 
14758 Stems short, Lvs. obi. rather obt. : nerve not protruded ; pericha-t. remarkably convol. Theca obi. Lid rost. 
[above half-way up, Fruitstalks very short. Lid rostrate 
14759 Stems much branch Branches pinn. Lvs. lingul. obt. ent. crisp, when dry : marg. recurv. ; nerve reaching 
14760 Branches fascicled curved, Leaves broadly ovate acute concave : their margins plane ; summits serrated, 
faintly 2-nerved at the base. Lid conical 
14761 Stems irregularly branched curved. Leaves ovate subacuminated concave : their margins recurv. serrated ; 
nerve single or forked : shoots faint. Lid conical 
14762 Stems scarcely branched, Leaves lanceolate acuminate carinate : their margins recurved entire, Theca 
ovato-cylindraceous oblique substrumose furrowed when dry. Lid conical 
14763 Leaves bifarious from a sheathing base subulate, Theca ovate inclined, Lid conical 
14764 Leaves obovate shortly apiculate : their nerve inerassated above, Theca ovate erect, Lid shortly rostrate 
14765 Stems more or less elongat. Lvs. oblon.-ov. flexu. strongly serrat at point, Theca erect cylindrae. Lid rost. 
14766 Leaves closely imbricated on all sides lanceolate much aeumin. carinate with the rigid nerve running 
beyond the point, Theca oblongo-ovate erect. Lid rostrate 
14767 Leaves rather distant somewhat trifarious lane, rather obtuse carinated with the nerve scarcely reaching 
to the point, Theca oblongo-ovate erect. Lid rostrate 
and Miscellaneous Particulars. 
the banks of the sea-shore to the limits of perpetual snow. The character from which the genus has received 
its designation, will always indicate the species with perfect truth. 
2229. Pterogonium. A name altered by Swartz from the Pterigynandrum of Hedwig, which was contrived 
to express that the male and female flowers of this genus of mosses are both present on a j)innated stem. An 
elegant collection of species, generally found in subalpine countries, where they enliven the trunks of trees ant? 
rocks with their bright green trailing entangled stems, which have altogether the habit of Hypnum. P 
Smithii has only been found in this country upon trees in the southern counties, especially in Devonshire. 
2230. Didymodon. So called, by Hedwig, from hdv/xos, double, and cdvs, a tooth, in reference to the gemmate 
