AFRO-INDIAN REGIONS. 



411 



plantaginea, Gaud.? (No. 2); leaves strikingly resembling those of the shrub 



Plantago, attenuate ; flowers smaller than in the other species. On the mountains on 

 Oahu. 



No. (3) ; more hairy; leaves serrate; flowers larger, corymbose. On the moun- 

 tains behind Honolulu, at the elevation of fifteen hundred feet. 



; perhaps the same with the last, but the leaves very broad. On the mountains 



behind Honolulu. 



nov. sp., (No. 4). Leaves long, lanceolate, attenuate, acutely serrate; terminal 



naked panicle. Tauai. 



Mikania ? (No. 1). A rambling shrub; leaves oblong, entire, smooth, reticulate; invo- 

 lucre about 5-leaved, uniserial. Tauai. 



Cfenotus ? nov. sp., (No. 1). A branching low shi'ub, not more than one to two feet high ; 

 inflorescence corymbose. In the sands of the alluvial isthmus on Maui ; also on Tauai, 

 with the leaves small, oblanceolate and entire. — Perhaps the same species, with dentate 

 leaves, in arid situations on Oahu. 



? (No. 2) ; a second species. Same habit; fewer and larger flowers, having distinct 



rays. Mauna Haleakala on Maui, growing at the elevation of from 1000 to 3000 feet. 



? (No. 3); a third species. A tall shrub; leaves more linear than in the coast 



species. Mauna Haleakala, at the elevation of 6700 feet. 



? (No. 4 ) ; a fourth species. Near C. Canadensis ; leaves with a tridentate apex. 



"Dry rocks near Waialua" at the West end of Oahu, Rich and Brackenridge. 



Gnaphalium (No. 1) ; root woody ; leaves spatulate, white-tomentose. Sands of the low 

 isthmus on Maui. 



Gen. near Bidens, (No. 1); but no awns on aken.; compare "California tea-plant." 



Leaves opposite, multifid, almost Achillea-like, the segments being minute, obovate, and 



very numerous ; involucral leaves few, apparently in two series ; flowers small, the rays 



whitish. In a ravine near the sea-coast of Tauai. 

 (Lipochgeta ?, No. 1) ; Wedelia; the "tea-plant." Leaves ovate, truncate at base, long- 



petioled, acuminate. " South of the Great Crater, growing on rocks near the coast, at 



the elevation of about five hundred feet," Brackenridge. — Perhaps the same species " at 



the Falls" near Hilo, the leaves cuneate and attenuate at base, and coarsely-dentate. 

 nov. sp., (No. 2) ; leaves lanceolate, obtuse, nearly entire. Clinging to the face 



of rocky precipices in the mountain-defile across West Maui. 

 (No. 3) ; leaves subsessile, hastately trilobed at base, rough, serrate, long-pointed. 



"Waialua" at the West end of Oahu, liich and Brackenridge. 

 ? (No. 4); leaves argutely-dentate, long-pointed; involucral scales long, leafy. 



In the mountain-defile across West Maui. — Compare sp. on Oahu, having obtuse 



crenate leaves. 



Ageratum (conyzoides ; bis Madeira, Taheiti to the Feejee Lslands, and No. 1 Brazil). 

 Abundantly naturalized ; filling the uninhabited country on the route from Hilo to the 

 Great Crater. Introduced by aboriginal settlers. 



(Adenostemma vi.scosura; No. ], bis Taheiti to the Feejee Islands.) Abundantly natural- 

 ized; frequent in wild situations on the outskirts of the forest, and in the pathway on 

 the route to the Great Crater, as far as the elevation of 3000 feet. (Introduced by 

 aboriginal settlers). 



