musci. 59 



30. Hypnum denticulatum, Dillen. 



Eypnum denticulatum, Dillen. Hist. Muse. p. 266, Tab. 34, f. 5. 

 Plagiothecium denticulatum, Bryol. Europ. 5, Plagioth. Monogr. p. 12, t. 8. 



Hab. Orange Harbor, Fuegia. 



The specimens, as far as they go — being without flowers or fruit — 

 accord entirely with this species. Hypnum denticulatum, Fl. Antarct. 

 p. Ill, from Hermite Island, has leaves filiformly acuminated, of a 

 delicate membranous texture, composed of pellucid slender cellules, 

 whose length is to their diameter about as 20 to 1 : on it is founded 

 Plagiothecium Antarcticum, Bryol. Europ. 



31. Hypnum Draytoni, Sulliv. (Tab. 14.) 



H. dioicum inajusculum laxe ccespitcms ; caidibus prostratis elongatis 

 tumide compressiusculis parce divisis ; foliis laxius imbricatis oblougis 

 ovato-oblongisve vedde concavis obtusis, acumine brevi flexuoso termi- 

 natis subecostatis, cellulis angustissimis ; capsula liorizontali gibboso- 

 ovata, pedicello longissimo, operculo conico brevius rc-strato. 



Eypnum Draytoni, Sulliv. in Proceed. Amer. Acad. Art. Sci. (Jan. 1854.) 



Hab. District of Puna, also Forest at Eastern base of Mauna Kea, 

 Hawaii, Sandwich Islands. 



Grows in thin, loose, and extensive mats, of a light yellowish-green, 

 shining. Stems rather large, prostrate, 3-6 inches long, subcompressed, 

 turgid, with very few divisions or branches, often simple. Leaves 

 loosely and subbifariously imbricated, oblong or ovate-oblong, very 

 concave, obtuse, with an abrupt, short, slender, flexuous point, pellu- 

 cid ; costa short ; bifurcate ; margin entire, not revolute ; texture thin 

 and firm ; cellules minute, linear, flexuous, condensed, those at the 

 base much shorter and broader. Capsule gibbous, short-ovate, hori- 

 zontal: pedicel lh-2 inches high, stiff, smooth : annulus conspicuous, 



