2916 



Leaflets of PrnucpiNE Botany 



[Vol. VIII. Art. 1T6 



ditions at 4250 feet altitude south of the Sibulan river. 

 Very rare and the Bagobos called both numbers "Bogobog". 

 The ellipsoid seed is a character of the genus Curcuma, 

 the seeds of Zingiber are described as angular. 



Zingiber gigantifolium Elm. n. sp. 



Loose clusters; erect stems recurved above the middle, 

 up to 4 m high, with bulbose bases, leaf bearing nearly to 

 the base. Blades ascending, dark green above, much lighter 

 green beneath, the flat sides with ascending coarse corruga- 

 tions, subcoriaceous, the basal ones smaller and different in 

 shape, glabrous, smooth on both sides, alternate, apex short 

 and rather sharply acute, curing lighter brown beneath, the 

 edges deeper brown and glabrous, base obtuse, oblongish, 

 sessile or nearly so, the larger ones 5 dm long by 10 to 14 

 cm wide at the middle or above it; sheath minutely ridged, 

 glabrous or in the early state with a patch of grayish woolly 

 hairs covering the reticulated sides, margins thinner and when 

 old glabrous and brown; ligule 1.5 cm high, almost as broad, 

 very rigid, broadly rounded, decurrent, usually the opposite 

 one much smaller or even obsolete; midrib ridged beneath, groov- 

 ed above, very stout at the leaf decurrent base. Heads upon 



4 to 7 cm long ascending peduncles, the green stalk glabrous 

 and subtended by a small leaf; the bracteate flowering head 

 erect, eylindrie, 9 to 12 cm long, about 4 cm thick across 

 the middle, somewhat narrowed toward the apex, at the base 

 subtended by an ascending oblong foliaccous glabrous brad 



5 to 8 cm long; bracts densely imbricate, 4 cm long, rig- 

 id, obovately oblong, 2 cm wide across the truncately rounded 

 apex, the edges thinner in texture, infolded and usually ciliate, 

 apical edges rugose and inwardly curved; flowers usually in 

 pairs or more from the axils of the large bracts and well 

 enclosed by them; bracteole 12 mm long at the obtuse apex, 

 the 2. bracteoles subtending the parallel 2 flowers contiguous 

 below the middle, membranous, otherwise glabrous, whitish, 

 conspicuously veined; the boot-like inner bracteole 3 mm longer, 

 in texture venation color and vestiture similar to the brac- 

 teole, apical portion unequally and broadly toothed or tabu- 

 late; calyx tube reddish, very slender, nearly twice as long 



