414 
DE CANDOLLE. 
1. Piper Korthalsii Miq. in Ann. Mus. Bot. Ludg. Bat. 1 (1863) 139; C. DC. 
Prodr. 1 6 1 (1869) 365. 
Luzon, Province of Benguet, Elmer 5896, masc., 5905, fem., 8550, masc., 8760, 
fem., Williams 1066, fem., Bur. Sci. 2503 Mearns, fem.: Province of Tayabas, 
Lucban, Elmer 933Jj., fem., climbing slender trees up to 15 feet, there bushy and 
much branched, berries yellow, when fully mature red, altitude about 2,000 feet. 
Mindoko, Bongabong River, Merrill 5592, fem., For. Bur. 3702 Merritt. Negros, 
Cuerhos Mountains, Elmer 9598, fem. 
Sumatra. 
j3 longibracteum C. DC. var. nov. 
Bractea oblonga utrinque obtusa, 5 mm longa, 1.5 mm lata, filamento 
paullo longius puberulo, anthera fere in summo apice filamenti : fasciculis 
intramedullaribns 2-seriatis. 
Mindanao, Lake Lanao, Camp Keithley, Mrs. Clemens Jj.63, masc., along the 
river, April. 
Sectio Eupiper C. DC. Prodr. 1 6 1 (1869) 339, emend. 
Spicae solitariae, oppositifoliae. Flores dioici, raro hermaphroditi. 
Bractea hypopeltata, libera et pedicellata aut centro subsessilis, vel rhachi 
adnata et tantum marginibus et extremitatibus libera. Stamina 2 later- 
alia, rarins 3 vel 4 quorum 2 lateralia. Ovarium liberum vel in rhachi 
partim immersum et inferne cum ea concretum. 
KEY TO THE PHILIPPINE SPECIES OF EUPIPER. 
1. Berry not stipitate, free or partly imbedded in and eoncrescent with the rachis, 
or berry as yet unknown. 
2. Bract free, pedicellate or subsessile. 
3. Flowers dioecious. 
4. Limb of leaf multinerved, that is, with all the main nerves distinct or 
very nearly so from the base. 
5. Limb quite glabrous. 
6. Berry free. 
7. Limb cordate or repand at the base, 6 cm long, 1.5 cm wide. 
2. P. costulatum 
7. Limb cordulate at the base, 12 to 15 cm long, 4.5 to 5 cm wide. 
7. P. miniatum (formae) 
7. Limb acute at the base. 
. 8. Limb 4 cm long, 1.5 cm wide 3. P. curtifolium 
8. Limb 8 cm long, 4 cm wide 4. P. varibracteum 
8. Limb 11 cm long, 3.7 cm wide 5. P. cacuminum 
6. Berry unknown; limb acute at the base, 5.5 cm long, 3.5 cm wide. 
6. P. fragile var. multinerve 
5. Limb glabrous above, more or less pubescent on the lower surface. 
6. Berry free. 
7. Limb cordulate at the base, 12 to 15 cm long, 4.5 to 5 cm wide. 
7. P. miniatum 
7. Limb tapering in its lower part and acute at the base, 9 cm long, 
4 cm wide' 8. P. halconense 
6. Berry partly imbedded in and eoncrescent with the rachis. 
