— 31 — 



Sumatra: (TEYsM. No. 3580; KOORD. No. 10481, No. 10483).— 

 B a n k a (TEYSM.— Medang Poedjie— fruit).— B omeo (BECCARI No. 429);- 

 Philippines (Elm. No. 7096; Fénix No. 1326- Vitex philippnensis Men). 



11. XEROCARPA H. J. L. ( auctore H. J. L. ) 

 Verb. 98. ( 1919). 



Distribution: New Guinea ( N.-E.- ) 

 1. Xerocarpa avicenniaefolia H. J. L, I.e. 

 Distribution: New-Guinea ( N.-E.- ) 



12. PREMNA L. (auctore H. J. L, ) 

 Mant II, 154 ( 1771 ); Verb. 100. 



Distribution: in the warmer regions of the old world. 



1. a. Calyx regularly 4-toothed or subtruncate, more or less 2-lipped; the lips 



entire or more or less 2— toothed (Sect. I Qumira Hassk.) .... 2 

 b. Calyx more or less regularly 5-toothed. sometimes subtruncate, more or less 

 2-lipped (Sect II Premnos Hassk.) 47 



2. a. Calyx 2-lipped, both lips entire or nearly so 3 



b. Calyx 2-lipped, 1 lip 2-toothed, the other entire or nearly so . . . .9 



c. Calyx subequally 4-toothed or subtruncate 26 



3. a, Cymes in panicles of interrupted spikes; flowers sessile, in glomerules; leaves 



subsessile, membranous. 1. P. Derryana 



b. Cymes in corymbose panicles, leaves petioled or sessile 4 



4. a. Leaves small, 5 c.M. long; petioles l'/ 4 c.M. . 2. P. mariannarum 



b. Leaves. larger, 8-28 c.M. long; petioles 1.2-12 c.M 5 



5. a. Corymbs small, 7'/ 2 c.M. in diam. ; calyx glabrous or nearly so; corolla-tube 



0.5 c.M,, sparsely villous within 3. P. cordifolia 



b. Corymbs larger, 5-27 c.M. in diam. ; calyx pubescent, 0.15-0.3 c.M.; corolla- 

 tube 0.3-0.45 c.M., densely villous within 6 



6. a. Leaves chartaceous; calyx sometimes pseudo-4-toothed; corolla-tube glabrous 



without; lobes subequal, pubescent and glandular without. 4. P. parasitica 

 b. Leaves membranous . . . 7 



7. a. Corolla glabrous without; corymbs reaching 13X1 1 c.M. . 6. P. Ruttenii 



b. Corolla pubescent without; corymbs reaching 30X20 c.M. .... 8 



8. a. Leafbase truncate or cordate 5. P, sterculifolia 



b. Leafbase decurrent 7. P. decurrens 



9. a. Leaves coarsely crenate along the whole margin, except near the base; pubescent 



oT subglabrate on both sides; calyx usually deeply and acutely 3-5-toothed; 

 corolla-tube 0.45-0.55 cM. long, 0.1-0.15 cM. in diam. 33. P. angustiflora. 

 b. Leaves entire or somewhat crenate towards the apex only; calyx with usually 

 obtuse and short teeth, often 2 only . 10 



10. a. Leaves subsessile; cymes in panicles of interrupted spikes, 1. P. Derryana, 



b. Leaves petioled; cymes in corymbose panicles 11 



11. a. Leaves with cinerous-white epidermis, glabrous, barbellate in the axils of 



the nerves beneath. . 8, P. alba. 



b, Leaves not white; glabrous or pubescent ... 12 



12. a. Lamina of leaves pubescent on one or on both sides. 13 



b. Lamina of leaves glabrous on both sides, the nerves or their axils beneath 



often pubescent , 16 



