AFRO-INDIAN REGIONS. 



513 



Diplazia (No. 12); not before met with. On Mount Banajao. 



Asplenium; compare A. nidus of the Hawaiian Islands. "On the mountains near 



Banos," Brackenridge. 

 (No. 37) ; congen. of A. nidus ?, but frond pinn. ; entire, caudate segments ; 



fructification in numerous parallel lines ; near Maui sp. " On the mountains near 



Banos," Brackenridge. 

 (No. 38). Simple lanceolate frond; sori large. " On the mountains near Banos," 



Brackenridge. 



(No. 39); not before met with. Habit of Adiantum ; simply pinn. " On the 



mountains near Banos, at the elevation of 1500 feet," Brackenridge. 



(No. 40) ; segments cuneate, almost fringed. " On the mountains near Banos," 



Brackenridge. 



(No. 41) ; segments cuneate, toothed at the apex. " On the mountains near 



Banos," Brackenridge. 

 (No. 42) ; not before met with. Habit of A. serra ; more regular. On Mount 



Banajao. 



Elebocarpus oleracea, (No. 1) ; Parkeria of some writers. The tufts might be mistaken 

 for leaves of an Umbelliferous plant. Frequent in marshes, around Manila, and also at 

 Mayjayjay. 



Gen. Filic. Marchantia-like, (No. 1). Barren fronds ovate, appressed to the surface of 

 overhanging banks ; fertile ones separate, filiform. Near the mission buildings at May- 

 jayjay. 



Musci. Mosses of various genera, abundant. 



Gen. Fungus-like. " Covering stones in the hot spring at Banos, in water of the tempera- 

 ture of 140° to 160°," Dana. 



From collections formerly seen, I could sometimes distinguish traces 

 of the neighboring Chinese East Indian Region ; which includes For- 

 mosa, and probably the Northern Extreme of Luzon. The above- 

 enumerated plants mostly belong to the Mindanayan East Indian 

 Region, to be mentioned presently: but being gathered not far within 

 the boundary, I have for the sake of comparison inserted them sepa- 

 rately. 



10. The Luzono-Bornean Mountain-region, around the 



SuLu Sea. 



The summit of Mount Banajao was ascertained by Lieutenant Eld 

 to be a "little over 6500 feet" in elevation. We were here on a 

 ridge, having a very steep hardly accessible declivity towards the 

 South; the weather uncomfortably cold; and so thick and rainy, that 

 we were unable to see far down the mountain, or obtain a view 

 beyond in any direction. 



The forest continued, and in the general vegetable growth there 



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