20, 4 Merrill: Noteworthy Philippine Plants, XVII 457 
The species is very strongly characterized among the Phil- 
ippine forms by its rather thickly coriaceous, entire, glabrous 
leaves and its elongated, spikelike inflorescences which are at 
most 1 cm in diameter, the persistent coriaceous, lanceolate 
bracts being sparingly ferruginous-pubescent. 
HALLIERACANTHA Stapf 
This genus, so far as known, is confined to Borneo and the 
Philippines, having twenty-one species in Borneo, three in Pala- 
wan, one in Mindanao and Basilan, and one in Mindoro and 
Luzon. My previous conception of Polytrema was largely based 
on Polytrema aequifolium C. B. Clarke of Palawan. Recently, 
in studying our Philippine and Bornean material, I concluded that 
this species could not be generically separated from Halliera- 
cantha. A communication from Dr. O. Stapf, in answer to my 
queries, clears up the matter. He states that Hallieracantha 
was published in July, 1907, and Polytrema in November or 
December, 1907, and further that Polytrema aequifolium C. B. 
Clarke is a Hallieracantha, not a Polytrema, the latter genus 
being typified by P. vulgare C. B. Clarke. The Philippine forms 
formerly. placed in Polytrema are here transferred to Halliera- 
cantha. 
HALLIERACANTHA AEQUIFOLIA (C. B. Clarke) comb. nov. 
Polytrema aequifolium C. B. Clarke ex Merr. in Philip. Journ. Sci. 10 
(1915) Bot. 345. 
PALAWAN, Bur. Sci. 357 Bermejos. 
HALLIERACANTHA ADDISONIENSIS (Elm.) comb. nov. 
Hypoestes addisoniensis Elm. Leafl. Philip. Bot. 5 (1913) 1697. 
Polytrema addisoniense Merr. in Philip. Journ. Sci. 10 (1915) Bot. 341. 
PALAWAN, Elmer 12715, Merrill 7235. 
HALLIERACANTHA ELMERI nom. nov. 
Hypoestes pulgarensis Elm. Leafi. Philip. Bot. 5 (1913) 1698, non 
Hallieracantha pulgarensis Elm. 
Polytrema pulgarense Merr. in Philip. Journ. Sci. 10 (1915) Bot. 342. 
PALAWAN, Elmer 12785. 
HALLIERACANTHA BREVIPETIOLATA sp. nov. 
Herba erecta, ramosa, 30 ad 40 cm alta, partibus junioribus 
leviter pubescentibus; foliis in paribus subaequalibus, oblongis, 
membranaceis, utrinque cystolithis numerosis instructis, 5 ad 
9 cm longis, breviter petiolatis, obtusis ad subacutis, basi ple- 
rumque obtusis, nervis utrinque circiter 6, perspicuis ; petiolo 
2 ad 6 mm longo; cymis breviter pedunculatis, paucifioris, 
