— 65 — 



branches distant. Tufts bright or yellowish green. Dioecious. 



— Clayey ground or stones in subalp. region r. Eur. Germany: 

 P. G. Lorentz. 



lO.R.Roellii Renauld et Cardot. 



Leaves with short serrate often twisted point, small; periche- 

 tial dentate at acumen. Capsule oblong often curved; teeth 

 pale yellow, papillose above; segments rimose or entire; cilia 

 often long; lid rosti'ate; pedicel not long. Stem red sparingly 

 radiculose; branches distant. Tufts bright green. Monoecious. 



— Logs r. Amer. Pacif. distr. Can.: Macoun. U. S.: Roell. 

 B. Leaves not distinctly curved, gen. quite entire. 



a. Leaves subulate-acuminate. 



ll.R.expallens C. M. et Kindb. — Entodon cat. Canad. m. 

 Leaves large ovate-lanceolate or ovate-oblong with not long, 

 sometimes faintly denticulate and at apex often deflexed acu- 

 men, not or indistinctly recurved; upper cells linear, alar large. 

 Capsules unknown. Resernbles Brachythecium rivulare. Dioecious. 



— Bogs by springs r. Amer, Can.: Macoun. U. S.: James, com. 

 C. Mueller. 



12.R.caroliilianum C. Mueller. — Hypnum C. M. syn. 



»Leaves narrowly ovate-lanceolate acuminate, recurved all 

 around; perichetial entire. Capsule small obovate inclined. 

 Branches compressed somewhat long and flaccid, dusky yello- 

 wish; stem long. Monoecious. — Wet rocks r. Amer. U. S.: 

 Sullivant»: C. M. 



b. Leaves obtusate (obtuse or acute). 



IS.R.Kegelii C. Mueller. — Leskea C. M.; Raphidostegium 

 Renauld et Cardot; Hypnum C. M. syn. 



Leaves small ovate more or less recurved; upper cells rhom- 

 bic-oblong, lower lanceolate, alar small. Capsule narrowly cy- 

 lindric subarcuate; pedicel somewhat long. Tufts dirty green. 

 Monoecious. sPeristomial teeth short yellow*: C. M. syn. — 

 Trees r. Amer. U. S.: Langlois, com. Cardot. 

 III. Pseudo-Pylaisia Kindb. 

 14.R.cylindricarpum C. Mueller. — Hypnum C. M.; SuUiv. 

 ic. m. 



Leaves ovate-lanceolate curved, recurved below and (as the 

 perichetial) serrate at acumen; alar cells large hyaline, the 

 others linear. Capsule cylindric; teeth yellow; segments rimose; 

 pedicel somewhat long. Tufts intricate us. brown-green or faintly 

 glossy. Dioecious. — Logs in woods r. Amer. U. S.: Sullivant, 

 com.C. Mueller;Purpus, com. Roell;Peck, herb. Austin, com. Macoun. 



