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aucta; 8. 4. folia, 5. folium ex apice ramorum, tricies aucla. 6. basis, 

 7. apex folii, centies et quinquagies ancti; 8. flos masculus, 9. flos 

 herraapliroditus, 10. flos femineus, quinquagies aucti', 11. antheridia, 

 12. genitalia floris herraaphroditi, 13. archegonia cum paraphysi, cen- 

 ties aucta; 14. perichaetium cum folio caulino et vaginula, 15. vagi- 

 nula, 16. 17. 18. capsulae, 19. operculum, 20. calyptra junior, tricies 

 aucla', 21. capsula sicca, quinquagies aucta', 22. peristomii pars ducen- 

 ties aucta. 



43. HYPNUM SUBSIMPLEX HEDW. Spec. muse. p. 270. tab. 69. 

 MULL. Syn. muse. II. p. 283. Linnaea 1848. p. 199. Iso- 

 thecium subsimplex BRID. Bryol. univ. II. p. 357 ex parte. 

 Hypnum simplex BRID. Sp. muse. p. 251. Hypnum simplicis- 

 simum BRID. Muse, recent. II. II. p. 189. Hypnum brachy- 

 poma SCHW. in sched. 



Planta luteo-viridis, nitens, late et laxe caespitosa, cortici arborum 

 adnata. Caulis longe et flexuose prorepens, varie divisus, ramulis bre- 

 vibus subsimplicibus remotiusculis assurgentibus compressiusculis irregu- 

 lariter divisus. 



Folia laxe imbricata, erecto-patentia, antica et postica erecto-patula, 

 versus ramorum apices plerumque attenuates magnitudine decrescentia 

 angustiora marginibus et acumine planiuscula, e basi angustiore brevi 

 latiuscule ovata, subulato-acuminata, strictiuscula, concaviuscula, mar- 

 gine erecto subintegerrima, altera ala magis minusve inflexa, costa de- 

 stituta vel costis bmis brevissimis obsoletis praedita; areolatione e cellulis 

 linearibus brevibus, versus basiu elongatis; ad utramque baseos alam 

 circiter 4 magnis, turgidis, aureis. 



Infloresceutia monoica. Flores utriusque sexus gemmiformes : gemmae 

 masculae in ramis et ramulis axillares, ovato-subglobosae, subclausae 

 vel omnino patulae, polyphyllae ; folia pcrigonii convoluta, exteriora late 

 ovata acuminata, interiora ovato-subrotunda apiculata, media exteriori- 

 bus et interioribus majora praesertim in pcrigoniis patulis, costa desti- 

 tuta , subintegerrima. Antheridia parva, paraphysibus destituta , ob- 

 longo-cylindrica , evacuata obconica , brevissime stipitata. Flo- 

 ris feminei gemma oblongo-cylindrica, patula, in caulibus et ramis axil- 



