polypodiace^e. 259 



in the ultimate divisions of the fronds being narrower and more seta- 

 ceous. 



19. Trichomanes exaltatum, Sp. Nov. 



T. rhizomate co3spitoso ; frondibus rigidis erectis oblongo-lanceolatis bipin- 

 natis; pinnis remotis siiboppositis patentibus elongato-lanceolatis acu- 

 minatis; pinnulis oblongo-ovatis bipinnatifidis, laciniis linearibus 

 obtusis, stipite rhachique communi et partiali teretibus rufo-pilosis ; 

 indusio supra-axillari campanulato libero, ore integerrimo ; recep- 

 taculo clavato vix exserto. 



Hab. Feejee Islands : in mountain forests, at the elevation of 1,500 

 feet. 



Eootstoch tufted. Fronds rigid, from 11 to 2 feet long, and 8 to 12 

 inches broad, erect, oblong-lanceolate, bipinnate. Inferior pinnae, distant, 

 subopposite, spreading, elongated-lanceolate; the superior ones more 

 approximate and ascending in their direction, and tapering gradually 

 into a finely pinnatifid point. Ultimate divisions or laciniw short, 

 crowded, narroiv-linear, obtuse. Stipe from 8 to 10 inches long, stout, 

 and together with the main and secondary rhachis terete, beset with 

 reddish-brown hairs. Sori very numerous, particularly on the upper 

 half of the frond. Indusium supra-axillar?/, free, nearly bell-shaped, 

 with an entire mouth. Receptacle clavate, scarcely ex^erted. Whole 

 plant of a dull dark green when dry. 



Perhaps the largest species of the genus. It is related to T. rnei- 

 folium, Bory ; but has much larger fronds, the inferior pinnaB more 

 distant, and the indusium shorter as well as wider at the mouth. 



20. Trichomanes meifolium, Bory. 



Trichomanes meifolium, Bory, in Willd. Spec. PI. 5, p. 509 j Blume, Enum. PI. 

 Jav. p. 227 ; Hook. Spec. EL 1, p. 137. 



Hab. Luzon, Philippine Islands. Tahiti, Society Islands. Sand- 

 wich Islands. 



