August 25, 1915] 



Notes and Descriptions of Zingiberaceae 



2891 



8 mm long, about 4 ram wide, the upper one larger than 

 the 2 lateral ones, minutely punctate, similarly nerved as 

 the calyx, oblong, rounded at the inwardly folded apex; 

 the pair of inner segments 4 mm long and as broad across 

 the subtruncate lobules, the basal portion clawed, conspic- 

 uoosly nerved and punctate; fertile filament 4 ram long, 

 compressed and grooved along the ventral side, fleshy and 

 glabrous, at the base provided with a pair of 2 mm long 

 sterile filaments or staminodes; anther when spread out 2.5 

 mm wide, 3.5 mtn long including the 1 mm long fleshy 

 terminal appendage, connective thick and dark brown on the 

 dry specimens, the ventral 2 cells light yellow and longitudi- 

 nally dehiscent; style filamentous, bearing an exerted finely 

 hairy subclavate stigma; ovary glabrous, 2 mm long by 

 0.75 mm thick, cylindric, truncate and minutely lobulate 

 at the apex. 



Type specimen number 12o09, A. D. E. Elmer, Magal- 

 lanes (Mt. Giting-giting), Sibuyan, May, 1910. 



Gathered in moist red clay covered with humus of a 

 densely wooded flat at 4500 feet latitude. 



The slender corolla tube at once distinguishes it from 

 Alpinia flabellata, Ridl. The two inner broadly lobed or 

 merely notched segments seem strange characters to the genus. 



Alpinia sibuyanensis Elm. n. sp. 



Small tufts; stems several, terete, green, unequal in 

 length, 1 to 2 m high or much shorter, ascending from the 

 bulbose base, declining toward the top, 7 to 12 mm thick. 

 Leaves ascending, coriaceous, shallowly folded upon the upper 

 slightly greener side, with wavy margins, nearly flat, glabrous, 

 slenderly tapering toward the sharply acuminate and strongly 

 recurved apex, base cuneate or obtuse, broadly lanceolate, 

 short petioled, similarly gray on both sides, at least 2 dm 

 long by 4 cm wide across the middle; sheaths clasping 

 and overlapping, densely striate, glabrous, margins subhyaline, 

 separated from the stem toward the top; ligule 3 mm long, 

 broadly rounded or notched, erect, glabrous, ted especially 

 on the inner side; petiole scarcely longer, also glabrous, 

 janiculate above, striate below; midrib pronounced beneath 



