May 31, 1919] 



ZlNQlBERACEAE OF THE SORSOOON PENINSULA 



2965 



middle, white throughout, even in the bud state as well 

 as the fruiting ones, rigid; outer bracts imbricate, the 

 average ones 3.5 cm. long, cuneately obovate to oblongish, 

 apex broadly obtuse to subtruncate, 2 cm. wide above 

 the middle, gradually tapering toward the broad base, 

 striate in the dry state at least, glabrous, the thin more or 

 less brownish margins fringed with whitish ciliate hairs; 

 bracts surrounding the flowers 1.5 cm. long, hyaline, 

 connate toward the base, obscurely toothed or becoming 

 lacerated, the young ones with a subtruncate apex whose 

 margins are finely ciliate, with parallel veins; flowers 

 rigid, white, with a central yellowish spot, equalling the 

 outer bracts; ovary glabrous, upon a short pedicel; calyx 

 nearly 1.5 cm. long, loosely surrounding the tube above 

 the middle, veiny and coarsely reticulate, the upper one 

 third divided into 2 or 3 lobes whose obtuse points are 

 puberulent; corolla tube a trifle less than 2 cm. long, 

 slender, glabrous; lobe 1 cm. long, broadly linear, with 

 its thin sides inflexed, broadly bilobed at the apex, the 

 middle portion extended into a narrower but thicker 

 erect crest, the lateral lobes divaricate and faintly re- 

 ticulate; lip obovately oblong, 1 cm. long, also glabrous, 

 attenuate toward the base, apex obtusely rounded, hya- 

 line, coarsely veined and reticulated; filament very short, 

 adnate to the basal portion of the lip; anther 5 mm. 

 long, 1.5 mm. wide, curved, glabrous even the connective 

 whose apex is truncate or only slightly emarginate; fil- 

 iform style 8 mm. long, terminated by a clavate stigma, 

 surrounded at the base by a group of linear erect fleshy 

 appendages 2 mm. in length, all glabrous. 



Type specimen number 15912, A. D. E. Elmer. Irosin 

 (Mt. Bulusan), Province of Sorsogon, Luzon, April, 1916. 



Only occasionally met iu wet humus covered soil of 

 dense forests of rather steep inclines at 1500 feet altitude. 

 In habit and general aspects it is quite similar to Adel- 

 meria gigantifolium Elm. but the heads are always white. 



Over twelve years ago I collected this white headed 

 Zingiberaceou* species at Sablan, province of Benguet. In 

 the Bureau of Science my specimen number 6255 from 

 northern Luzon is placed under the genus Zingiber, and 

 in Philip. Journ. Sci. iv, 170, 1909, Dr. Ridley reported 

 it* as an unidentifiable plant. 



ALPINIA Linn. 

 Alpinia pubiflora (Benth.) K. Schum. 

 Field-note:— Small or few stemmed clumps in moist 



