210 
The Philippine Journal of Science 
1916 
PIPER AURILIMBUM C. DC. in Elm. Leafl. Philip. Bot. 3 (1910) 768. 
Adde : Stirpis masc. scandentis, pedunculo 14 mm longo, spica 
florente 2.5 cm longa et 3 mm crassa, rhachi et bractea ut in 
femina, staminibus 2, antheris rotundato-ovatis primum 4-locu- 
laribus, adultis magnis paullo ultra 1 mm longis et 2-valvatis. 
Luzon, Ifugao Subprovince, Mount Polis, Bur. Sci. 19821 McGregor : 
Cagayan Province, Abulug River, Weber 158 If. 
PIPER CRASSI LI M BUM C. DC. sp. nov. 
Ramulis glabris; foliis breviter petiolatis glabris, limbo late 
ovato basi cordulato apice acute acuminato, 7-plinervio, nervo 
centrali nervos adscendentes 2 mittente quorum supremus a 7-15 
mm supra basin solutus, nervis lateralibus utrinque 2 a basi 
divaricantibus, petiolo basi ima vaginante; stirpis masc. pedun- 
culo glabro petiolum subaequante, spica florente quam limbus 
pluries breviore, rhachi hirsuta, bracteae pelta rotunda carnosa 
centre breviter pedicellata, staminibus 2 antheris rotundatis 
filamenta fere aequantibus; stirpis fern, pedunculo ut in mare, 
spica florente quam limbus pluries breviore, rhachi parce pilosa, 
bracteae pelta rotunda carnosa centro breviter pedicellata, ovario 
basi in rhachi leviter immerso superne oblongo carnoso glabro, 
stigmatibus 3 rotundatis carnosis. 
Dioicum, scandens, 2-3 m altum. Ramuli in sicco flavicantes, 
spiciferi 2 mm crassi, in 3.5 mm crassis collenchyma in fascic- 
ulos discretos a latera productos sat crassos dispositum et baud 
libriforme, fasciculi kitramedullares 1-seriati, in mare canalis 
lysigenus unicus centralis, in femina canalis centralis periphe- 
ricique multi, cellulae aurantiacae in cortice et in medulla cre- 
brae. Limbi in sicco coriacei flavescentes et haud pellucido- 
punctulati, usque ad 12.5 cm longi et 8.7 cm lati. Petioli 
circiter 10 mm. Spica masc. 3.5 cm longa et inferne usque ad 
3 mm crassa ; spica fern, fere 2 cm longa et usque ad 3 mm crassa 
bracteae pelta 1.5 mm diam. 
Luzon, Benguet Subprovince, Baguio, Merrill 76^9, 7660, in thickets, 
limestone region, altitude about 1,550 m, flowers greenish-yellow. 
PIPER PALAWAN UM C. DC. sp. nov. 
Ramulis glabris ; foliis breviter petiolatis glabris parvis, limbo 
ovato basi aequilatera cordulato summo apice acuto, 7-plinervio, 
nervo centrali nervos 2 adscendentes mittente quorum supremus 
circiter a 7 mm supra basin solutus, nervis lateralibus adscen- 
dentibus utrinque 2 a basi solutis, petiolo basi ima vaginante; 
stirpis masc. pedunculo glabro quam petiolus multo longiore, 
spica limbum superante glabra, bracteae pelta rotunda centro 
