216 
The Philippine Journal of Science 
1916 
PIPER BETLE Linn. Sp. PI. (1753) 28. 
Luzon, Camarines Province, Bur. Sci. 2213 k Ramos: Laguna Province, 
Bur. Sci. 15053, 16639 Ramos. 
Forma b C. DC. in Philip. Journ. Sci. 5 (1910) Bot. 431. 
Luzon, Laguna Province, Los Banos, Bur. Sci. 9689 Robinson, in forests, 
altitude about 30 m: Tayabas Province, Tagcauayan, Bur. Sci. 13386 
Ramos: Bulacan Province, Norzagaray, Bur. Sci. 13031 Ramos: Rizal 
Province, Bur. Sci. 1353k Ramos, flowers yellow. 
Forma c C. DC. 1. c. 
Luzon, Nueva Vizcaya Province, near Dupax, Bur. Sci. H172, H179 
Ramos: Bataan Province, For. Bur. 23212 Alambra & Caulas. Panay, 
Iloilo Province, Bur. Sci. 18153 Robinson. 
PIPER SARCOSTYLUM C. DC. sp. nov. 
Ramulis glabris; foliis breviter petiolatis glabris, limbo ellip- 
tico-lanceolato basi aequilatera acuto apice acute acuminato; 
7-plinervio nervo centrali nervos adscendentes utrinque 2 opposite 
mittente quorum supremi a 2.5 cm supra basin soluti, nervo 
laterali adscendente utrinque, a basi soluto, petiolo basi ima 
vaginante; stirpis fern, pedunculo glabro petiolum paullulo supe- 
rante, spica florente quam limbus pluries breviore, rhachi hirsuta, 
bracteae glabrae pelta rotunda centro subsessili, ovario inferne 
in rhachi immerso superne in stilum carnosum oblongum gla- 
brum producto, stigmatibus 3 ovatis brevibus. 
Dioicum, in arboribus scandens. Ramuli in sicco fusci, spi- 
ciferi 1 mm crassi, collenchyma fere omnino libriforme in 
fasciculos discretos a latere productos dispositum, fasciculi in- 
tramedullares 1-seriati, canalis lysigenus unicus centralis, zona 
cellularum sclerosarum cum phloemate fasciculorum peripheri- 
corum continua, cellulaeque sclerosae in cortice glomerulatim dis- 
positae. Limbi in sicco rigidi creberrime pellucido-punctulati, 
usque ad 10.5 cm longi et 4.2 cm lati. Petioli 5 mm, pedunculi 
8 mm longi. Spica florens 2 cm longa et usque ad 8 mm crassa, 
bracteae pelta 0.5 mm diam., stilus paullo ultra 0.5 mm longus. 
Species P. chabae Bl. proxima. 
Mindanao, Butuan Subprovince, Agusan River, Merrill 7305. 
PIPER CHABA Blume Verh. Bat. Genoots. 1 1 (1826) 168. 
Luzon, Laguna Province, San Antonio, Bur. Sci. 16608, 20520, 20582 
Ramos; Mount Maquiling, Bur. Sci. 17003 Robinson: Camarines Province, 
Mount Isarog, Bur. Sci. 22077 Ramos. Leyte, Dagami, Wenzel kO, 802, 
Bur. Sci. 15503 Ramos. 
PIPER RHOM BOPHYILUM C. DC. Prodr. 16 1 (1869) 352. 
Luzon, Tayabas Province, Bur. Sci. 13282 Ramos: Camarines Province, 
Bur. Sci. 22150 Ramos. Samar, Bur. Sci. 17507 Ramos. Leyte, Elmer 
7080. 
