BY E. D. MERRILL. 625 



EUPHORBIACEAE. 



Antidesma Burniaii . 



Antidesma tomentosum Bliime, Merr. I^'inum. Born. Pi. (1921) 



Antidesma tomentosum Bliime, Merr. Emmi. Born. PI. 

 (1921) 333. 



Mount Poi, s.n., altitude about 1500 m. Malay Peninsula 

 to Java and Celebes. 



Trigonostemon Blume. 



Trigonostemon diffusus sp. nov. § Eutrigonostemoii. 



Frutex vel arbor parva, subglabra, ramis teretibus, glabiis, 

 pallidis, circiter 2 mm diametro, ramulis tenuibus, novellis 

 plus minusve hirsutis ; foliis inaequalibus, mebranaceis, 

 olivaceis, glabris vel subtus ad costa nervisque parcissime 

 hirsutis, lanceolatis ad oblongo-lanceolatis, 12 ad 19 cm longis, 

 3.5. and 6 cm latis, tenuiter caudato-acuminatis, basi acutis 

 et plerumque supra biglandulosis, distanter crenato-denticu- 

 latis, nervis primartiis utrinque circiter 10, subtus distinctis, 

 arcuato-anastomosantibus ; petiolo 1 ad 2.5 cm longo ; inflores- 

 centiis terminalibus lateralibusque, tenuis, diffusis, plerumcjiie 

 longe tenuiter pedunculatis, multiramosis, 15 ad 35 cm longis, 

 glabris; floribus cT caducis, circiter 7.5 mm diametro, sepalis 

 ovatis, obtusis vel rotundatis, 2 mm longis ; petalis oblongo- 

 obovatis, ut videtur atro-purjDureis, glabris. circiter 4 mm 

 longis, 2.8 mm latis, deorsum angustatis ; antheris 3, oblongis, 

 0.8 mm longis. Floribus $ fructibusque ignotis. 



Mount Poi, No. 145, E. Mjoberg, near the foot of the 

 mountain. 



A species remarkable for its very slender, elongated, diffuse, 

 staminate inflorescences which attain a length of 30 cm, in 

 some cases the branches being comparatively few, in others 

 being very numerous. The flowers fall very readily so that in 

 spite of the greatly developed inflorescences the flowers at any 

 one time are apparently very few in number. 



