156 FOXWORTHY. 
frreatest development in the Malayan region. The Pliilippines, with eleven speeies, 
show a very rich representation of the genus. The Philippine species show the 
closest relationship to those of Borneo and Celebes. 
All our species except P. polystachyus are mountain, often high mountain, 
forms. P. polystachyus alone comes down to sea-level and is frequently found in 
rocky placos at or near the beach. 
Natural reproduction seenid to be easy in most places where representatives 
of this genus are found. 
Tn P. polystachyus, and j^ossibly other species as well, tlie young seedlings show 
only 2 cotyledons. 
In some cases, tlie lleshy receptacle of the fruit is eaten; and there is a very 
limited use made of the wood. Aside from these, the members of the group are 
not uaed. 
KEY TO PHItTPPrXE SPECIES. 
a. Leaves dimorphous, very variable; larger leaves 13-17 mm long, smaller ones 
closely upprossed, acuminate. (Sect. Dacrycarpus.) >.. 1. P. imhricaius 
aa. Leaves of one kind, linear, lanceolate or ovate. 
1). Leaves broad, lanceolate, opposite or subopposite. (Sect. Nageia.) 
2. P. blumei 
bb. Leaves linear or lunccohite or elliptic, alternate. 
c. Receptacle not developed. (Sect, kit achy car pus.) 
d. Leaves green on both surfaces, more than 5 cm long; large trees. 
3. P. amariis 
dd. Leaves glaucous beneath, less than U cm long; alpine shrubs. 
4. P. glaucus 
cc. Receptacle developed, fleshy. (Sect. Eupodocarpns.) 
d. Leaves never long-attenuate in the upper part, lanceolate or elliptic- 
l&nceolate. 
e. Leaves less than 5 cm long. 
f. Leaves acute or nuicronulate at apex, 4-7 mm wide, 
6. /'. hrevifolhis 
fF. Leaves usually rounded or obtuse at apex, 10-12 mm wide. 
fi. P. pilgeri 
ee. Leaves 5 cm or more in length. 
f. Male catkins numerous, fasciculate; sea-level forms. 
8. P. polystachyus 
ff. ^lale catkins not fasciculate; mountain forma..... 7. P. costahs 
dd. Ijeaves long-attenuate in the upper part, 
e. Upper half of leaf uniformly attenuated to the acute apex. 
9. /'. neriifolius 
ee. Leaves not so uniformly attenuated in the upper half, 
f. Leaves narrow, gradually narrowed into petiole. 
10. i*. philippinensis 
If. Leaves large, abruptly narrowed into petiole 11. P- rumphn 
Section T. Dacrycarpus Endl. 
^luch branched trees; leaves very small. Juvenile anil adult foliage 
very distinct, Male flowers terminal, anthers on leaves which are but 
slightly modified; apicnlns large. Female flowers terminal; receptacle 
small, verniculose; fertile carpidium single, connate with the ovule for 
