POLYPODIACE^. 69 



erect trunk, 3 or 4 inches in height. Stipes from 2 to 3 inches long, 

 paleaceous-squamose. Sterile and fertile fronds about equal in size, 

 from 6 to 12 inches long, and usually an inch broad, elongated-lanceo- 

 late, acute; the surface on both sides almost entirely concealed by 

 chestnut-brown, ciliate-dentate scales. 



4. Elaphoglossum inteemedium, Sp. Nov. 



E. caespitosum; stipite paleaceo ; frondibus oblongo-lanceolatis basi at- 

 tenuatis utrinque squamosis, squamis imbricatis ovato-lanceolatis ciliato- 

 dentatis. 



Hab. Organ Mountains, Brazil. 



Stipe from 3 to 4 inches long, thickly covered with chaffy, straw- 

 coloured, membranaceous, ciliate-dentate scales. Fronds usually from 

 8 to 10 inches long, and a little over an inch broad at the middle, 

 oblong-lanceolate, the point rather obtuse, the base attenuated on the 

 stipe, both sides closely imbricated with ciliate-dentate scales. The 

 fertile fronds (though somewhat mutilated) are apparently of the 

 same size and outline as the sterile, but with a little longer stipe. 



This is closely allied to the preceding species, as also to the E. 

 (Acrostichum) vestitum of Lowe, a native of the island of Madeira. 

 It differs from the latter only in its stipe being a little longer, in 

 the absence of blackish scales on the stipe, as well as on the costa ; 

 and in the more densely imbricated scales on both surfaces of the frond. 



5. Elaphoglossum hybridum. 



Acrostichum hylridum, Bory, ex Willd. Spec. PI. 5, p. 107 ; Raddi, Plant. Brasil. 

 p. 4, t. 16 j Hook. & Grev. Ic. HI. t. 21 j Gaud. Bot. Freyc. Voy. p. 303. 



Hab. Organ Mountains, Brazil. 



The sterile fronds in our specimens are broader and more rounded 

 at the base than those represented in the Icones Filicum ; yet we feel 

 satisfied that they belong to the same species. 



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