﻿multo majore et latiore, transversim reetangulari vel subse- 

 mirotunda, supra plana et interdum medio lenissimc linpressa, 

 grosse papillosa et, prsesertim apice, valde incrassata. 



b) Cellulse lamellse omnes conformes et chlorophylli- 

 ferse, eadem marginalis etenim numquam major, : 



humiles, i 



11. Polytrichum nanvm Weiss. 



Folia plana, margine subplano; in seetione transversa 

 anguste semilanceolata, angulis acutissimis, nervö latissimo, 

 applanato, dorso haud prominente. Lamellce crebrse, circi- 

 ter 48, humiles, densse, rectse, ab uno strato (3 — 5) cellu- 

 larum construetee, margine, e latere visse, integerrimse, haud 

 incrassatse, nec papillosse, cellulis omnibus conformibus, lse- 

 vis.simiri et elilnrophylliferis. 





!..: /' Hud? 



Folia canaliculata, margine erecto; in seetione trans- 

 versa semielliptiea. angulis acutis, nervö sat lato, dorso vix 

 prominente. Lamellus paucee, circiter 36, altse, remotiusculse, 

 subundulatas, ab uno strato (6—8) cellularum construetse, 

 margine, e latere visas, valde indistincte subpulvinari-denti- 

 culatae, nec incrassatae, nec papillosss, cellulis omnibus con- 

 formibu.s, kevissimis et ehlorophylliferis. 



IL Oligotrichum 



Lam. et DeC. Fl. franc. III. ed., II, p. 491, n. 96 (1805). 

 B. S. Bryol. eur. lasc. 21 et 22, Monogr. (1844). 



