AFRO-INDIAN REGIONS. 



273 



Blechnum (No. 1) ; near (No. 9) Brazil. Three to six feet high. Growing in woods 

 near the coast. 



Gleichenia (Hermanni, No. 1). Principally occupying the unwooded ridges near the 

 coast. Also seen on Aimeo. 



Cheilanthoid (No. 1). Three to eight inches high. On dry ridges, in clefts of rocks ex- 

 posed to the sun; also seen on Aimeo. 



Ophioglossuin (pendulum, No. 1). Epidendric in the mountain-forest; fronds linear, pen- 

 dulous, three to five feet long, and an inch wide; spike arising from the middle of the 

 frond. 



(Antrophyum plantagineum ?, No. 1); Asplenioid. On trunks of trees; frond simple, 



lanceolate ; fructification in long, irregular lines. 

 Gen. Polypod. (No. 1). Frond lanceolate, penninerved, the nervures undulate; sori large, 



no indusium ?. Epidendric on trunks of trees, on the Interior mountain-ridge near 



Lake Waihiria. 



" Niphobolus" (No. 1). Creeping on trunks of trees, and frequent ; frond lanceolate-linear. 



(No. 2) ; compare the preceding. Frond linear, seven inches long. Found by 



Mr. Brackenridge. 



Polypodium ; compare (No. 1 Paumotuan coral-islands and Metia); near P. aureum. 

 Frequent on trunks of trees, and elsewhere. 



(No. 2); seeming distinct; sori smaller; fronds three feet long. In the moun- 

 tain-forest, rare. 



(No. 3). Epidendric in the mountain-fore.st ; frond lanceolate, pubescent, twelve 



to eighteen inches long ; fruct. in two rows. 

 (No. 4). Small; frond pinnate, nine inches long. Epidendric on trunks of 



trees in the mountain-forest. 

 ■ ; compare nov. gen. Dicksonioid (above described). Frond simply pinnate, 



eighteen inches long. On trunks of trees in the mountain-forest. 



(No. .5) ; frond three to five feet, bipinnatisect. In the mountain-forest. 



Gen. Polypodioid? (No. 1). A "tree-fern," according to Mr. Brackenridge; very large, 



hairy stipes ; frond bipinnati. ; sori small. In the mountain-forest. 

 Microsorus ? (No. 1); frond lanceolate, two to three feet long. On trunks of trees in 



the mountain-forest. 



? (No. 2); frond three to five feet, bipinnatisect. In woods. 



Polybotrya? (No. 1). Having the habit of Aspid. thelypteris ; pinnis dentat. ; fructifi- 

 cation nearly covering the frond; marginal. Abounding in the marshes between 



Matavai and Papeita. 

 Pteris (No. 1); near P. aquilina. Bank of stream. 



(No. 2); near P. pedata. In clefts of rocks exposed to the sun. Also seen on 



Aimeo. 



? (No 3). Five feet high, spreading, with the frond bipinnatisect; but the seg- 

 ments sub-opposite, serrulate at the apex, linear-obtuse. In woods. 



?; compare the preceding. Very large, four to six feet high; the segments 



sometimes two to three inches. 



(Nephrodium ? No. 2). Having the habit of N. exaltatum ; three to four feet high. 

 Very abundant in woods. 



(Thelypteris? No. Ij; agreeing at least in habit. Two to three feet high. In the moun- 

 tain-forest. 



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