78 F I L I C E S. 



ascends the trunks of trees to a height of 20 or 30 feet, clinging to 

 the bark by means of its wiry pilose rootlets, and producing, from the 

 ground upwards, numerous small sterile fronds, and at the points, a 

 tuft of fertile ones, 3 to 5 in number. These fertile fronds are usually 

 about half the length of the sterile ones immediately surrounding 

 them, and both kinds are pinnate. Pinnae seated on a short petiole, 

 lanceolate, with an attenuate apex, truncate-cordate at the base, and 

 serrulate on the margin : fertile ones long-linear ; the sori becoming 

 confluent and concealing the whole under surface, 



6. Stenochl^ena Feejeensis, Sp. Nov. (Tab. 11.) 



S. rhizomate seandente nigro squamoso-hirsuto ; stipite brevi tereti squa- 

 mosa; frondibus membranaceis lanceolatis pinnatis ; pinnis subal- 

 ternis petiolatis ovato-oblongis obtusis serratis; rhachi pubescente. 



Hab. Sandalwood Bay, Feejee Islands : on trees. 



Habit and aspect of the plant a good deal like the preceding, but 

 much smaller in all its parts. Stipe about one inch long. Pinnae 8 

 lines long, by 3 lines broad, seated on a short articulated petiole, the 

 margin deeply and rather irregularly serrated. Fertile frond not seen. 



Plate 11. — Fig. 1. Portion of a plant, natural size. 1 a. Pinna, to 

 show the venation. 1 b. Scale from the rhizoma. — Magnified. 



28. P L Y B O T R Y A, H. B. K, Kaulf 



(Acrostichi Spec. Sw. Khipidopteris, Schott.) 

 1. POLYBOTRYA EXALTATA, Sp. Nov. 



P. stipite semitereto sulcato squamoso-hirsuto; frondibus pinnatis apice 

 radicantibus ; pinnis sterilibus subpetiolatis oblongo-lanceolatis basi 

 trmicato-auriculatis margine serrulatis; pinnis fertilibus oblongis v. 

 ovato-oblongis margine integris revolutis subtus sporangiferis ; rhachi 

 squamosa marginata. 



