72 The Philippine Journal of Science i9i* 
PIPER BETLE Linn. Sp. PI. (1753) 28; Safford 353, pi. 68. 
Piper mariannum Opiz in Presl Rel. Haenk. 1 (1825) 159. 
G. E. S. 190, locally known as pupulo. 
Throughout the Indo-Malayan region, in cultivation. 
PIPER POTAMOGETONI FOLI U M Opiz in Presl Rel. Haenk. 1 (1828) 
166. 
Collected in Guam by Haenke, and known only from that Island, unless 
the plant was erroneously localized, as many of Haenke’s were. 
PEPEROM I A Ruiz & Pavon 
PEPEROM I A PELLUCI DA HBK. Nov. Gen. et Sp. PI. 1 (1815) 64. 
G. E. S. 23b. 
A native of tropical America, now in most tropical countries. 
PEPEROM IA GUAM ANA C. De Candolle sp. nov. 
Caule glabro, foliis alternis modice petiolatis glabris, limbo 
elliptico-lanceolato basi et apice acuto, 5-nervio; pedunculis ter- 
minalibus axillaribusque glabris petiolos superantibus, spicis 
adultis limbos paullo superantibus glabris densifloris filiformibus, 
bracteae pelta orbiculari centro breviter pedicellata, antheris 
ellipticis filamenta brevia superantibus, ovario emerso ovato 
paullo infra apicem stigmatifero, stigmate glabro, bacca globosa 
sessili glandulis asperulata. Caulis inf erne e nodis radicans, 
2 mm crassus. Limbi in sicco membranacei crebre et minute 
pellucido-punctulati ac parce pellucido-punctati, usque ad 3.5 cm 
longi et 2.5 cm lati. Petioli 5 mm, pedunculi fere 10 mm longi. 
Spicae adultae 3.8 cm longae. 
Along the Piti-Agat road, R. C. McGregor 629, October, 1911, locally 
known as podpod palauan. 
The diagnosis of the following species from the neighboring island of 
Saipan has kindly been supplied by Mr. DeCandolle: 
PEPEROM IA SAIPAN A C. DeCandolle sp. nov. 
Caule glabro, foliis alternis modice petiolatis, limbo elliptico- 
lanceolato basi acuto apice obtusiusculo utrinque glabro juniore 
margine ciliato, 5-nervio, petiolo glabro ; pedunculis terminalibus 
glabris petiolos fere aequantibus, spicis quam limbi paullo bre- 
vioribus glabris filiformibus densifloris, bracteae pelta orbiculari 
centro breviter pedicellata, antheris rotundatis filamenta fere 
aequantibus, ovario emerso globoso summo apice stigmatifero, 
stigmate glabro, bacca globosa sessili glandulis asperulata. 
Caulis fere 1 mm crassus. Limbi in sicco membranacei crebre 
et minute pellucido-punctulati ac parce pellucido-punctati, 3.3 
cm longi 2 cm lati. Petioli 5 mm longi. Spicae 2 cm longae. 
Marianne Islands, Saipan, Fritz (herb Berol.). N. v. Popudpud, medici- 
nisch; Zunge und Kopfweh. 
