290 The Philippine Journal of Science isis 



allied to both Amorphophallus longistilus Kurz, of the Andaman Islands, 

 and to A. harmandii Engl. & Gehrm., of Cambodia, but differing from 

 both in many characters. It is at once distinguished from the former by 

 its much smaller spathes, and from the latter by its larger spathes and 

 relatively much longer spadices. 



AMORPHOPHALLUS DECURRENS (Blanco) Kunth Enum. 3 (1841) 581; 



Engl, in DC. Monog. Phan. 2 (1879) 319, Pflanzenreich 48 (1911) 



108 = AMORPHOPHALLUS CAM PANULATUS (Roxb.) Blume! 



Kunth's Amorphophallus decurrens was based on Arum decurrens Blanco 



FI. Filip. (1837) 656, and is retained by Engler, in his recent monograph 



of the group, among the doubtful and imperfectly known species. In all 



characters Blanco's description applies very closely to Blume's species, 



which is very common and widely distributed in the settled areas throughout 



the Archipelago. There is no reason whatever for doubting that Arum 



decurrens Blanco, that is, Amorphophallus decurrens Kunth, is identical 



with the older Amorphophallus campanulatus (Roxb.) Blume. 



ERIOCAULONACEAE 



ERIOCAULON Linnaeus 

 ERIOCAULON NIGRICEPS sp. nov. 



Planta dense casepitosa, inflorescentiis exceptis glabra; caulis 

 brevibus, crassis; foliis numerosis, lanceolatis, usque ad 6 cm 

 longis, basi brevissime vaginantibus ; pedunculis numerosis, 5 

 ad 18 cm longis, gracilis, leviter tortis, 5-costatis ; capitulis sub- 

 globosis, circiter 5 mm diametro, in siccitate nigris, bracteis al- 

 bido-ciliatis ; floribus $ sepalis 3, connatis; petalis nullis vel 1 

 ciliato-fissis ; antheris nigris; floribus 9 exacte trimeris, sepalis 

 oblongis vel oblanceolatis, breviter acuminatis, apice ciliatis. 



A densely csespitose plant, glabrous except the inflorescence. 

 Stems stout, short. Leaves numerous, densely crowded, lanceo- 

 late or narrowly lanceolate, 2 to 6 cm long, 5 to 8 mm wide, about 

 10-nerved, much wider at the base than above, gradually nar- 

 rowed and usually obtuse. Peduncles numerous, slender, up to 

 18 cm in length, 5-ribbed, slightly twisted. Heads subglobose, 

 4 to 5 mm in diameter, nearly black or somewhat grayish when 

 dry, dense, the involucral bracts pale, oblong to obovate, truncate, 

 about 2 mm long. Receptacle glabrous. Floral bracts dark- 

 colored, oblong-oblanceolate to oblong-obovate, shortly acum- 

 inate, distinctly white-ciliate toward the apex on the back. Male 

 flowers: Calyx about 1.5 cm long, dark-colored, spathelike, at 

 first 3-toothed, the lobes eventually becoming free nearly or quite 

 to the base, eglandular. Petals none, or one only and ciliate-cleft 

 into several hyaline- jointed segments. Stamens 6 ; anthers black. 

 Center of the flower with 3 minute, dark-colored sessile glands. 

 Female flowers : Sepals 3, subequal, oblanceolate to oblong, 1.8 to 



