— 20 — 



14.Neckerop8is Reichavdt (rather a subgenus of Neckera). 

 1 .N.uiidulata Hedwig. — Neckera H.; Neckeropsis Reich. 



Leaves undulate subhnear-lingulate with broader and cordate 

 base, faintly denticulate all around; upper cells rhombic, middle 

 and lower lanceolate-linear. Stem creeping. »Capsule immersed 

 cj'lindric-oblong; teeth j'ellow; segments carinate as high; calyptra 

 mitriform sparingly hairy»: C. M. syn. — Trees r. Amer. U. 

 S.: Fitzgerald, com. Renauld. (Cuba: Wright, com. C. Mueller). 

 2.N.disticlia Hedwig. — ■ Neckera H.; Neckeropsis Kindb. 



Leaves not undulate, sublingulate entire or above middle 

 indistinctly denticulate; upper and middle cells rhombic-oval, 

 basal and lower marginal linear. » Capsule subemergent oblong- 

 cylindric; teeth pale; segments as high, ejilit to base; calyptra 

 conic dimidiate glabrous*: C. M. syn — Trees r. Amer. U. S.: 

 Austin, com. Macoun. 



15. Poroirichuni Bridel. 

 LP.Bigelowii Snllivant. — Hypnum SulL; Porotrichum Kindb. 



Leaves distant nearly plane, but involute at one side of base, 

 obtusate acute sharply serrate above, sublinear-lanceolate or sub- 

 lingulate; upper cells hexagonal-oval, middle oblong, lower 

 sublinear; costa smooth long not percurrent, sometimes forking 

 above. Capsule obovate; lid long-rostrate; pedicel curved above. 

 Branches distant. Tufts bright green often glossy. — Wet 

 rocks r. Amer. Pacif. dislr. Can : Macoun. U. S.: Mrs L. C. 

 Feely; E. Hall, com. Macoun; com. Renauld and Cardot. 



Fam. 6. LeptodofitacesB. 



16. Leptodon Mohr. 

 ] .L.abietimiS Hooker. — Neckera Hook.; Leptodon Kindb.; 

 Alsia SuUiv. ic. muse; Leptodon circinnatus SuU. 



Leaves serrulate gen. in upper tliird, raamillose-spinulose 

 above at back and costa, more or less acuminate, acute or 

 Bubobtuse at apex, gen. ovate-oblong ov (those of stem) ovate- 

 lanceolate, recurved below, often involute at acumen; cells very 

 small and gen. oblong-linear, alar Roinetimes subquadrate; costa 

 long not percurrent. Inner perichetial leaves convolute obtusate 

 apiculate. Capsule red oval-oblong; teeth whitish; segments 

 long rimose; calyptra and vaginula glabrous. Stem us. erect, 

 sometimes bipiunate, its naked part us. long; branches crow- 

 ded not flagelliferous; paraphyllia broad fimbriate. — Trees 

 and rocks r. Amer. Pacif. distr. Can: MacOun. U. S.: Bola-nder, 

 com. C. Mueller; Miss Mann, coua. Cardot; Mrs L. C. Feely; 

 Hall, com. Macoun; Leiberg, com. Mrs Britton, 



