BOTANICAL CfA^Mtt!. 97 



at the base; furthermore tlie leaves of the latter are every way like those of Lepto- 

 trichum tortile. Mr. Macoun has found both D. Gunadeania and Z>. I'uria on Vancouv- 

 er's Island. Of the latter species he has sent me a fine specimen; hut of the former 

 only a small fragment, which appears to have got accidentally mi.xed with Bdrhida 

 unguiculatd . It is probable that this moss Is not rare in the North West. 



FissiDENS Hallii, n. xp. — Statura facieque F^. iuciircix, statim diguoscitur lamen 

 foliis margine crenulatis baud limbatis, operculo longius ro.strato (semper V) calyptra 

 vix ad basim rostri producta basi baud fissa etc. — Capsula erecta, pedicello mediocriter 

 lougo, florescentia dioica, planta' utriusque sexus immixtje. 



Texas, Hall. 



FissiDENS iNCURVus (W. & M.) SoHWGR, var. I.ONGIPES. — Differt a fomia uormali 

 pedicello ratione cauli longiore, autheridiis t-8 nudis in foliorum axills eparaphysa- 

 tis, etiam in eodenu|Ue caule cum pistillidiis paraphy.satis apicali. 



On the ground, Vancouver's Island, 1875, Macoun. 



F[ssIDE^■s iKCi'Kvus var. .monoicus. {F. monoicus, Aust. ///. lift, od Si'm.iv., ISOD.) 

 Habitu, foliatione, etc., nonnali sed florescentia F^. hryoklis. 



On a moist red shale bank of the Black River, at Vleet-Town, Hunterdon county, 

 New Jersey, x\ugust, 1877. (Matures in July and August.) 



The var. sYNOiciis (7^. ,v^/i/>«VM» Sulliv.) matures its fruit late in autumn. It grows 

 on limestone banks and rocks along streams. (Haverstraw, Albany, Watkin's Glen, 

 &c., in New York, also Canada and Ohio.) 



The var. minutulus {F. minutulm and F. e.nguus,) Sui.i.iv. matures in summer. It 

 occurs only on stones in damp places, shaded ravines, about springs, etc. {F.Cliitsteri, 

 Aust. may be looked for wherever this var. occurs; it matures in August.) 



The var. chassipes {F. cruxxlpex Wils.) is found in somewhat similar situations as 

 the preceding var.; but along larger and less limpid streams, and where it is subject to 

 inundation, often for several weeks at a time. 



The more normal forms, of this, in some respects, extremely variable species, do 

 not ap])ear to occur east of the Rocky Mountains, except in the Southern and Sonth- 

 western States. 



F. DECiPiENS DeNot. Sulliv. Icon. Suppl.{F. rape-striif Wils.) Occurs on shaded 

 rocks in mountainous localities, throughout the Middle and Eastern States. I first 

 separated this species from F. ndiantoides, its nearest ally, by its sul)terminal fruit and 

 minute leaf-cells, ten years ago, and had kept it under Wilson's name. 



It occurs abundantly on trunks of trees in Florida. 

 F. TAXiFOLHTS Hedw. is commou on moist shady banks (never truly on rocks) in the 

 Middle States. Like the preceding species (also F. (ididntoidcx and F.i>.sii'iiitdiiii(hs)\\ 

 matures its fruit late in autumn. 



^ Encalypta Macouni, II. up. — Ab E. ajfinix Hedw./. {F.apophyxataN. II. S.) prox- 

 ima recedit foliis muticis, costa sub apice flniente, capsula (valde immatura) magis- 

 apophysata (sinistram versus leuiter tortaV) peristomii dentibus hrevioribus dimiilo- 

 augustioribus, calyptra basi clegantissime fimbria, persistente, et al 

 Stewart's Lake Mountains, June, 1875, Macoun. 

 Calyptra about as large as in the largest examples of £^. ciliatu, light fuscous yellow, 

 (the fringe brown, uniform, luuTow and delicate) densely papillose over the whole sur- 

 face. Pedicel reddish, minutely papillose, rather densely so above the middle, more 

 remotely so below it, slightly twisted to the right in drying. Apoi)liysis at the base of 

 the capsule very large. Peristome single, the teeth of medium length, very narrow and 

 filiform, red, more or less split into two equal segments nodulose and granulose 

 Leaves much crisped when dry, straight and erect when moist, narrowly ligulate, cari- 

 nate, broadly revolute on the margin, mutic, very opake; the costa ceasing below the 

 .apex and densely papillose on the back Perichittial leaves much smaller and thinner, 



