wis ccs 
22. Pterygophyllum Bridel. 
1.P.lucens L. — Hypnum L.; Pterygophyllum Brid. 
Leaves plane very large, round-ovate or suboval, arrounded 
at apex, pale-hyaline when emarcid; upper cells round-hexago- 
nal, lower oblong. Perichetial leaves ovate-lanceolate acuminate. 
Capsule suboval horizontal or deflexed; teeth orange; segments 
orange entire as. high, their basal membrane high; lid rostrate; 
pedicel long red. Tufts loose. Stem irregularly divided. Mo- 
noecious. Habit of Mnium punctatum. — Wet places princ. 
near rivulets. Eur. France: Zetterstedt. Italy: Arcangeli. Austria: 
Schmidt Germany: Huebner. Engl.: Cash; Holt. Norway: Ahn- 
feldt, com. S. Hardin. Amer. Pacif. distr. Alaska: J. M. Macoun. 
Can: J. Macoun. 
2.P.Sullivantii C. Mueller. — Hookeria Lq. et Jam. 
Differs from the last: Leaves: ovate or suboblong narrower 
and less large subacuminate subacute; cells oval-oblong nearly 
uniform. Capsules unknown. — Rocks r. Amer. U. S. Tennessee: 
Mrs Britton, com. C. Mueller. 
23. Daltonia Hooker et Taylor. 
l.D.splachnoides Smith. — Neckera Sm.; Daltonia H. T. 
Leaves small entire from sublinear-lanceolate base tapering 
to a subsubulate shorter acumen; middle and lower inner cells 
oblong-lanceolate, marginal narrow-linear yellowish; costa reaching 
to acumen, Capsule small oyal-oblong; teeth whitish or yello- 
Wish; segments entire as long without basal membrane; lid 
yellow rostrate; pedicel short. Plants small. — Rocks and 
trees r. Eur, Irel: Holt; M'Ardle. 
Fam. 9. Leskeacee. 
24. Thelia Sullivant. 
A. Leaves green fimbriate; their cilia not split, - 
1.T hirtella Hedwig. — Pterigynandrum H.; Thelia Sull, ic. m. 
Stem brown-tomentose; branches bilateral distant; paraphyllia 
humerous. Capsule subcylindric; teeth short; segments none; 
endostomial membrane elevate; lid rostrate; pedicel short. — 
rees r. Amer, Can.: Macoun; Drummond n. 79; Lawson. U. S.: 
Roel; Sullivant, com. C. Mueller; com. Macoun and Cardot. 
2.T.robusta Duby. 
 »Differs from the last: Branchlets unilateral very crowded, 
heaves r. simply costate. Endostomial segments obtuse. T 
Amer, r. U. S»: Lesq. et Jam. | 
3.T.compacta Kindb. in Ottawa Naturalist IV. 
