AFRO-INDIAN REGIONS. 



377 



nov. sp., (No. 12). Stem weak, sub-scandent, ascending sometimes twenty feet; 



frond tripinn., the segments very broad j stipe large, smooth. Mountain-summits on 

 Ovolau, at the elevation of 2000 feet. 



Nov. gen. Lomarioid, (No. 1). A vine, the stem scandent; barren fronds pinnate, spinu- 

 loso-serrate, attenuate towards the apex, the nervures all parallel as in leaf of Calophyl- 

 lum ; the fertile fronds separate. Twining among the trunks and branches of trees in 

 the low sub-maritime grove opposite Rewa. 



Lomaria (No. 2). On mountain-summits on Ovolau, at the elevation of 2000 feet. 



(No. 3). Narrow pinnate frond, the segments short. Growing on the ground, 



on the mountain-summits on Ovolau. 



? (No. 4). Three and a half feet high; segments sessile; the fertile ones partly 



foliaceous as in Blechnum. On mountain-summits on Ovolau. 



(No. 5) ; a fourth species. Broadest ; two and a half feet high ; the lower seg- 

 ments auriculate, clasping at base; nervures prominent. On mountain-summits on 

 Ovolau. 



Gen. Lomarioid, (No. 1). A vine, the stem scandent; the fertile fronds separate; the 

 barren fronds Marattia-like, pinnate, with the segments entire, penninerved, petioled. 

 " Ovolau," Brackenridge. 



(No. 2) ; a second climbing species. Fronds pinnate, the pinn. simple and acu- 

 minate; the fertile fronds separate. (" Ovolau," Brackenridge). 



Gen. Polybotryoid, (No. 1) ; with the fertile fronds separate. Epidendric, large, creeping; 

 frond bipinn., the segments serrate, with the fructification apparently covering the 

 whole back. "Ovolau," Brackenridge. 



Thelypteris ; bis Samoa to Tongatabu. Frequent in open marshes. 



; bis, (compare No. 4 Samoa); having small sori. "Island of Lakemba," Dr. 



Holmes. 



(No. 6) ; or compare Polybotrya. Frond pinn., pinnis pinnatifid or dentate. 



Growing with the first-mentioned in open marshes, but rather rare. 



nov. sp., (No. 7); or compare Aspidium. Habit of Thelypteris, but smooth 



stipe; frond bipinn., sori along the margin. " Island of Munia," Dr. Holmes. 



(Nephrodium) ; bis (No. 1 Metia to) Tongatabu. Like A. exaltatum, but the racbis 

 pubescent. Less frequent than at Samoa. 



; compare the last sp. Larger than A. exaltatum ; fr. in two rows. " Ovolau, at 



the elevation of two hundred feet," Brackenridge. 



exaltatum ? (No. 2) ; entirely smooth. Mbua Bay, and elsewhere. 



(No. 3); miniature of A. exaltatum. "On mountain-summits on Ovolau, grow- 

 ing in tufts on the trunks of trees," Brackenridge. 



Aspidium (No. 4). Stipe paleaceous; frond bipinn., the serratures mucronate or spines- 

 cent. On the mountain-summit behind Muthuata, at the elevation of 2000 feet. 



(No. 5). Creeping, epidendric?; fronds bipinn., six to eight inches high; sori 



large. Ovolau. 



(No. 6). A tree-fern?; frond tripinn., the pinn. pinnatifid; fr. in two rows. 



(Ovolau). 



? (No. 7). Large; frond tripinn., the segments small ; stipe rough, as in Cyathea. 



"Ovolau," Brackenridge. 

 Diplazia; bis (No. 2) the broad-leaved, proliferous sp. of Samoa. Growing at Rewa, Mbua 



Bay, and elsewhere. 



95 



