— 90 — 



lO.C.sericeum L. — Hypnnm L.; Camptothecium Kindb.; 

 Homalotheciuin Br. eur. 



Stem-leaves gen. entire, the elder short; costa reaching to 

 acumen. Branch-leaves longer and narrower, denticulate above 

 middle, often also at basal angles; costa longer, not percurrent. 

 Capsule ovate-oblong or subcylindric; teeth pale yellow; annulus 

 revoluble; lid often apiculate. Stem rigid pinnate. Tufts us. 

 green and silky glossy. — Male plant much smaller; leaves 

 smaller and narrower, those of stem often dentate below, those 

 of branches with long subfiliform point. — Trees and stone. 

 Eur. common. Sweden, Switzerl.! Amer. v. U. S. Calif.: Mrs 

 L. C. Feely. Can.: Macoun. 



B. Capsule asymmetric or curved; segments long; cUia pre- 

 sent. Stem-leaves short-decurrent; alar cells numerous. 

 ILCGeeheMi Milde. — Hypnum Milde; Camptothecium 

 Kindb.; Brachythecium Schimper. 



Leaves subovate-oblong, those of stem entire, those of bran- 

 ches denticulate at acumen; costa vanishing in acumen. Cap- 

 sule suboval; teeth orange; cilia short; annulus persistent; lid 

 long-conic; pedicel 1 c. m. long. Stem pinnate. Tufts dusky 

 green. — ■ Dry princ. basaltic rocks r. Eur. Germany: A. Geheeb. 

 12.C.Ainesiae Renauld et Cardot. — C. dolosum R. C? 



Differs from the last: Uppermost branch-leaves sej-rate at 

 acumen with oblong cells above costa. Capsule oval-oblong or 

 narrower; cilia long; lid short conic. Tufts silky glossy brown- 

 green. — Rocks r. Amer. Pacif. distr. Can.: Macoun. U. S.: 

 Henderson, com. Cardot. 



4. Am'eolaria. 



A. Leaves decurrent, those of stem entire, those of branches 

 sinuolate or serrate above. Stem with none or few rhizoids. 



a. Leaves small not long. Capsule oblong; teeth orange; 

 segments and cilia long. 



IS.C.aureum Lagasca. — Hypnum Lag.; Camptothecium Br. 

 eur. 



Leaves gen. subovate-oblong entire, slightly recurved; cells 

 Unear exc. the alar. Branch-leaves sometimes faintly sinuolate 

 at acumen. Perichetial leaves entire gen. short-acuminate. 

 Capsule nearly straight; lid apiculate. Stem sometimes with 

 paraphylha. Tufts golden glossy. — Stones r. Eur. Mediterran. 

 distr. Greece: Orphanides, com. Heldreich. France: PhiUbert. 

 14.C.pinnatiiidum SuUivant et Lesquereux; SuU. ic. m. 



Differs from the last: Inner leaf-cells lanceolate-linear. 



