— 164 — 
*P.Swartzii Hartman. ` A 
»Leaves short about 5 m. m. Capsule small subcubic with 
less distinct apophysis. — Eur. r. Sweden»: Hartman skand. 
flora. * 
26.P.conorhynchum Kindb. cat. Canad. m. T€ 
Differs from P. commune: Leaves channelled green, periche- 
tial longer aristate. Lid of capsule with broadly conie beak. - 
— Bogs in alps r. Amer. Can. Selkirk mts: Macoun. - 
IV. Polytrichadelphus Mitten. e 
27.P.Lyallii Mitten. — Polytrichadelphus Mitt.; Polytrichum - j 
Kindb. revue bryol. 1894; Oligotrichum Lindb.; Sull. ie. muse. —— 
Leaves dentate above often to the middle of the prominent — 
lamina, not appressed; awn short smooth also in perichetial 
leaves; lamelle about 30, their apical cell thick-walled suboval | 
smooth. Perichetial leaves subconvolute densely lamellate at 
the short point. Capsule subovoid-cylindric strangulate finally ie 
brown; peristomial membrane elevate; lid long-rostrate; pedicel - 
yellowish. Resembling P. alpinum and P. sexangulare. — Swampy 
places in higher alp. region. Amer. Pacif. distr, r. U. S.: Roell; 
Nowell. E 
Fam. 18. Georgiacee. id 
74. Georgia Ehrhart. Te 
I. Tetraphis. Leaves distinctly costate; upper cells round- 
hexagonal. Peristomial teeth narrow. Stem elongate. 
IL Tetrodontium. Leaves not distinctly costate; upper 
cells suboval. Peristomial teeth broad. Stem nearly indistinct. 
I. Tetraphis Hedwig. Ro 
A. Pedicel of capsule smooth. 
1.G.pellueida L. — Mnium L.; Georgia Rabenhorst. ENS 
Leaves subovate or suboblong, obtusate us. acute. Periche 
tial leaves with long sublinear us. obtuse acumen; costa not 
excurrent. Capsule and pedicel straight. Sterile stems gem- 
miferous at the top, their buds cup-shaped; upper stem leaves 
very small. — Rotten logs, sandstone and turfy soil in woods. 
Eur. common. Sweden, Switzerl.! Amer. not r. Can.: Macoun; 
Waghorne. U. S.: Roell. : 
2.G.euspidata Kindb. revue bryol. 1893. E 
Leaves subovate short-acuminate acute. Perichetial leaves 
cuspidate by the long-excurrent costa. Capsule gen. curved; 
pedicel straight. — Amer. Can.: Macoun. U. S: Sullivant and. 
Schrader, com. C. Mueller; Miss C. Cummings, com. Roell - 
