4 The Philippine Journal of Science i»i6 



After considerable study of this plant I am inclined to place it in the 

 general alliance with Glyceric, R. Brown, but am not entirely satisfied 

 that this is its proper disposition. In its facies and in details it is quite 

 different from Glycerin. Its striking distinguishing characters are its 1- 

 to 3-flowered spikelets, its distant glumes, its flowering glumes slightly 

 inflated and longitudinally sulcate at the base, and its produced rachilla 

 that is tipped with a very greatly reduced sterile glume, so reduced usually 

 as to appear like a mere enlargement of the tip of the rachilla. 



The genus is dedicated to Maximo Ramos, who for many years has 

 been employed by the Bureau of Science as a botanical collector, and whose 

 field work has yielded material on which the descriptions of several hundred 

 new species have been based. 



ARACEAE 



POTHOS Linnaeus 

 POTHOS DOLICHOPHYLLUS sp. nov. § Allopothos, Longevaginati. 



Alte scandens, glabra ; f oliis coriaceis, in siccitate pallidis, an- 

 guste lanceolatis, usque ad 45 cm longis et 6 cm latis, tenuiter 

 longissime caudato-acuminatis, basi obtusis, leviter inaequilate- 

 ralibus, nervis collectivis utrinque 2 vel 3, distinctis ; petiolo cir- 

 citer 15 cm longo, in siccitate tubuloso, usque ad geniculis vagi- 

 nato ; pedunculis 2 vel 3, 4 ad 7 cm longis ; spathis oblongo-ovatis, 

 coriaceis, usque ad 15 cm longis et 5.5 cm latis, caudato-acumi- 

 natis; spadicis sessilibus, cylindraceis, 4 ad 5 cm longis, circiter 

 1 cm diametro. 



A stout, climbing vine, rooting copiously at the nodes, the 

 stems about 1 cm in diameter, the nodes not prominent, the 

 internodes about 2 cm long. Leaves coriaceous, pale when dry, 

 narrowly lanceolate, slightly inequilateral, 30 to 45 cm long, 4 

 to 6 cm wide, base somewhat narrowed, obtuse, apex long and 

 slenderly caudate-acuminate, the acumen up to 3 cm in length, 

 the midrib very prominent, the longitudinal collective nerves 2 

 or 3 on each side of the midrib, slender, distinct, the third one 

 when present submarginal; petiole about 15 cm long, cylindric 

 when dry, narrowly winged throughout its length, at most 8 mm 

 in diameter. Peduncles 2 or 3, each subtended by a narrowly lan- 

 ceolate, long-acuminate, somewhat sheathing bract up to 11 cm 

 in length, the peduncles 4 to 5 cm long. Spathes oblong-ovate, 

 coriaceous, up to 15 cm long and 5.5 cm wide, long and slenderly 

 caudate-acuminate. Spadices sessile, cylindric, obtuse, 4 to 5 

 cm long, about 1 cm in diameter. 



Luzon, Province of Sorsogon, Mount Pocdal, Bur. Sci. 23708 Ramos 

 (type), in damp forests, August 6, 1915. Samab, Ambalate, Bur. Sci. 

 17628 Ramos, April 6, 1914. 



A most striking species, clearly in the alliance with Pothos rumphii 

 Schott, but with entirely different leaves, much broader spathes, and shorter, 

 sessile spadices. 



