60 CRYPTOGAMIA. 



double : operculum elongate-conic, subrostrate : calyptra cuculliform : 

 teeth of the peristome lanceolate-subulate, closely articulated; cilia 

 carinate, imperforate, from a very broad membrane ; ciliolae in threes. 

 Perichaetial leaves ovate, ovate-lanceolate, and oblong-lanceolate, the 

 inner ones sheathing at base, their upper half spreading, with margins 

 subconvolute and slightly crenate-undulate. Dioicous, male gemmae 

 axillary, each containing numerous antheridia and paraphyses. 



Plate 14, A. — Hypnum Dkaytoni: plant, of the natural size. 

 Fig. 1. Portion of the stem, with leaves. 2, 3, 4, 5. Leaves. 6, 7, 8. 

 Portions of a leaf, showing the reticulation. 9, 10, 11. Capsules. 

 12. Portion of the double peristome. 13. Portion of the annulus. 

 14. Operculum. 15. Perichsetium. 16, 17. Perichaetial leaves. 18. 

 Male bud. 19. The same, in the axil of a stem-leaf. 20, 21. Perigo- 

 nial leaves. 22. Antheridium and a paraphysis. — Details enlarged. 



32. Hypnum Eudom. SulUv. (Tab. 14.) 



R dloicum ; ccespite laxa ; caule prostrate simplici vel paucirameo; foliis 

 subbifariam imbricantibus ovato-oblongis valde concavis obtusis abrupte 

 tenuiter brevi-acuminatis angustissime linear ^areolaris breviter Ucostel- 

 latis; capsula cylindracea, subwquali suberecta clavellato-attenuata 

 longiuscule pedicellata; operculo conico brevi-rostrato. 



Jfypnum Eudorce, SulHv. in Proceed. Amer. Acad. Art. Sci. (Jan. 1854.) 



Hab. Forest at the Eastern base of Mauna Kea, Hawaii; also 

 Kaala Mountains, Oahu ; Sandwich Islands. 



Stems somewhat turgid, subcompressed, 2-2* inches long, scarcely 

 1 line wide, with but few branches, often simple, forming large, loose, 

 shining patches of a light golden color. Leaves loosely and bifariously 

 imbricated, ovate-oblong, obtuse, very concave, with an abrupt, short, 

 flexuous point, estriate, with two short indistinct costae at base, mar- 

 gins entire, reticulation of very minute linear flexuous cellules. Peri- 

 chaetial leaves long, convolute, with attenuated and spreading points. 



