516 The Philippine Journal of Science 1923 
POTHOS Linnaeus 
POTHOS MIRABILIS sp. nov. § Allopothos, Longevaginati. 
Ramis 3 ad 4 mm diametro; foliis chartaceis vel subcoriaceis, 
oblongis, nitidis, leviter inaequilateralibus, usque ad 26 cm 
longis, tenuiter acuminatis, basi acutis, nervis collectivis mar- 
ginalibus vel submarginalibus, lateralibus tenuibus, curvatis, 
numerosis, utrinque circiter 30; petiolis longe vaginantibus, 7 
ad 9 cm longis; inflorescentiis solitariis, longe pedunculatis, 
spathis membranaceis, in siccitate brunneis, nitidis, valde reti- 
culatis, tenuiter acuminatis, circiter 40 cm longis et 2 cm latis; 
spadicibus pedunculatis, circiter 10 cm longis et 5 mm diametro. 
A scandent, apparently branched plant, the branches 3 to 4 
mm in diameter. Leaves oblong, shining, pale greenish when 
dry, 20 to 26 cm long, 6 to 8 cm wide, slightly inequilateral, 
subequally narrowed to the acute basé and the slenderly acumi- 
nate apex, chartaceous or subcoriaceous, the collective longitud- 
inal nerves marginal or submarginal, one at the very edge of 
the leaf, the other about 2 mm from the margin, the lateral 
nerves numerous, slender, about 30 on each side of the midrib; 
petioles 7 to 9 cm long, sheathing, the upper 1 cm terete, the 
sheathing parts 1 cm wide or less (when spread). Inflores- 
cences solitary, their peduncles slender, about 10 cm long. 
Spathes membranaceous, brown and shining when dry, translu- 
cent, linear-lanceolate, very long, about 40 cm long and 2 cm 
wide, slenderly acuminate, base decurrent along the peduncle, 
acute. Spadix cylindric, about 10 cm long and 5 mm in diameter, 
stipitate, the stipe about 2.5 em long. Fruits cylindric, about 1 
cm long, 1-seeded. 
British North Borneo, Labuk and Sugut Districts, in the flat 
country of the Sumawang River valley, Agama 664, September 
21, 1918, altitude about 20 meters; Batu Lima, Ramos 1260, 
October, 1920, Elmer 20364, November, 1920. 
A most remarkable species on account of its greatly elongated 
spathes which are about 40 cm long and 2 cm wide, brown, shin- 
ing, translucent when dry, and prominently reticulate. It is 
possible that this should be treated as the type of a new genus 
allied to Pothos, but for the present it seems best to refer it to 
Pothos, § Allopothos, Longevaginati. It is remote from all 
known species of the genus. 
QUERCUS Linnaeus 
QUERCUS BORNEENSIS sp. nov. § Pasania. 
Arbor plus minusve ferrugineo-pubescentibus; foliis char- 
taceis, oblongis ad oblongo-lanceolatis vel oblongo-oblanceolatis, 
