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 HalUera- 

 cantha. A communication from Dr. 0. Stapf, in answer to my 

 queries, jlears 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. Joum. 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. Joum. Sci. 10 (1915) Bot. 341. 

 PALAWAN, Elmer 12715, Merrill 7235. 



HALLIERACANTHA ELMERI nom. nov. 



Hypoestes pulgarensis Elm. Leafl. Philip. Bot. 5 (1913) 1698, non 



Hallieracantha pulgarensis Elm. 

 Polytrema pulgarense Merr. in Philip. Joum. 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, paucifloris, 



