POLYPODIACE^. 21 



This has a slightly revolute margin, and might very readily be 

 taken for a species of Gheilanthes. 



5. NOTHOCHL^NA GLABRA, Sp. Nov. 



N. stipitibus gldbris sulcatus ; frondibus triangulari-ovatis bi-tri-pin- 

 natis; pinnulis ovato-oblongis obtusis profunde pinnatifidis utrinque 

 gldbris, segmentis oblongis inciso-lobatis vel crenulatis. 



Hab. Feejee Islands. 



Stipes slender, from 6 to 10 inches long, about the thickness of a 

 quill from the wing of a turtle-dove, smooth, glossy, and of a dark 

 brown colour, with a single furrow in front. Fronds smooth on both 

 sides, from 3 to 6 inches in length, in circumscription triangular-ovate, 

 bipinnate, some of the fronds may be said to be tripinnate; the primary 

 and secondary divisions ovate-oblong and obtuse : the ultimate divisions 

 or segments from 2 to 3 lines long and about 2 lines broad, of an 

 oblong form, irregularly cut into obtuse lobes or erenatures. Sporangia 

 in an advanced state projecting beyond the margin of the segments. 



6. GYMNOGRAMMA, Desv., J. 8m. 



(Acrostichi, Spec. Linn. Grammitidis, Spec. Sw. & Auct.) 

 # Frondes glandulosce vel pilosce. 



1. Gtmnogramma tomentosum, Desv. 



Gymnograimma tomentosa, Desv. Jour. Bot. 1, p. 25, ex Kaulf. Enum. Fil. p. 70. 

 Hemionitis tomentosa, Raddi, Plant. Brazil, p. 8, t. 19. 

 H. humilis? Velloz. Fl. Flumin. 11, t. 94. 



Hab. Rio Janeiro, Brazil ; in open hilly places, frequent. 



In the Hemionitis humilis of the Flora Flumin ensis, the base of the 

 fronds is represented as being bipinnate ; so that the plant may only 

 be a mere variety of this species. 



