AFRO-INDIAN REGIONS. 



375 



(No. 6) ; fronds mostly simple, lobed on the margin, and rooting at the apex ; 



the fertile frond separate. Ovolau. 



Gen. Acrostichoid, (No. 2) ; frond lanceolate, terminating in a fertile thread. Growing iu 

 tufts "on the mountain-summits on Ovolau, at the elevation of 2000 feet," Bracken- 

 ridge. 



Schizsea; bis (No. 2) Samoa. Flabellately divided, the lobes of spikes few. 



nov. sp., (No. 3). Sarothra-like, and six to nine inches high ; the lobes of .spikes 



numerous. Abounding in the barren upland, at Naloa and around Mbua Bay. 

 nov. sp., (No. 4). Stipe simple, bi-alate, spikes two or more inches long. 



" Mountain behind Muthuata, at the elevation of fifteen hundred feet," Rich. 

 Adiantum (No. 7) ; stipe scabrous ; segments hairy beneath. Mountain-summit behind 



Muthuata, at the elevation of 2000 feet. 



(No. 8 ) ; simply pinnate. Ovolau. 



Lindsaea (No. 1) ; frond bipinnat. Ovolau. 



(No. 2). Habit of Adiantum, but the stipe white. Ovolau. 



(No. 3) ; frond simply pinnate. Ovolau. 



; perhaps the same with the last; frond simply pinnate; a creeping rhizoma. 



Ovolau. 



" Didymochlajna" (No. 1); according to Mr. Brackenridge, resembling or "near D. 



sinuosa of Brazil." Bipinnate, seven to ten feet high. On mountain summits on 



Ovolau, at the elevation of two thousand feet. 

 Angiopteris evecta; compare (No. 1) Taheiti to Samoa. A tree-fern, having a large 



but short trunk; the fronds fourteen to fifteen feet long. Ovolau; growing in the 



forest. 



(No. 4) ; apparently a second species ; the fr. nearer the midrib ; Marattioid, 



and compare Taeniitis. " Eight to ten feet high. Ovolau," Brackenridge. 

 Lygodium (compare No. 1 Taheiti). Frequent in the forest. 

 Blechnum nov. sp., (No. 2) ; near Taheitian sp. Ovolau. 



Gleichenia; compare (No. 1 Taheiti to Samoa). In open ground, at Naloa and around 

 Mbua Bay. 



(No. 2) ; apparently a second species ; narrow segments. On the mountain-sum- 

 mits on Ovolau, at the elevation of 2000 feet. 



Nov. gen. Wallichii, (No. 1) ; Polypodium of authors. The nervures dichotomously 

 dividing. Mountain-summits on Ovolau, at the elevation of 2000 feet. 



(Cheilanthoid, No. 2). Habit of Cheilanthes ; and also Pteris-like, but apparently no 

 indusium. Muthuata. 



Cheilanthes (No. 1) ; tomentose. Barren hills on the Leeward coast. 



(No. 2); smooth; the frond more divided. Growing, with the preceding, on 



barren hills on the Leeward coast. 



Ophioglossum pendulum ; bis (No. 1) Taheiti to Samoa. Epidendric. Ovolau. 



Nov. gen. Botrychioid, (No. 1). A creeping rhizoma; sterile fronds Davallia-like ; fer- 

 tile ones separate. " Mountain-summits on Ovolau, at the elevation of 2000 feet/' 

 Brackenridge. 



Antrophyum ; compare (No. 1) Taheiti to Samoa. Frond very broad. Ovolau, and else- 

 where. 



; compare (No. 2) Samoa. Frond lanceolate-linear, six to nine inches. Growing 



in tufts on trunks of trees, on the mountains on Ovolau. 



