Premna. 101 



Herb. Leid. no. 37. 34. — Trees or shrubs, sometimes 

 climbing; leaves opposite, rarely whorled, simple, generally 

 petioled and entire; inflorescences cymose, in terminal 

 panicles or corymbs, di- or trichotomously branched, bracts 

 small, narrow; bracteoles none; calyx variously toothed, 

 or truncate, often more or less 2-lipped, one lip entire 

 or 2-toothed, the other entire or 3-toothed, small, cam- 

 panulate, persistent, not or little altered, in fruit; corolla 

 small; tube cylindrical, short; limb oblique, more or less 

 2-lipped, upper lip usually' entire, rarely 2-lobed, lower 

 one 3-lobed, the middle lobe larger; sometimes the 4 

 corolla-lobes subequal; throat usually densely villous, with 

 curled or stiff hairs; stamens 4, exsert or nearly included, 

 didynamous or subequal, inserted in the throat of the 

 corolla-tube, anthers ovoid or subspherical, the cells usually 

 divergent, often with a circular opening; style somewhat 

 exsert, apex generally shortly bifid; ovary perfectly or 

 imperfectly 4-celled; cells 1-ovuled; ovules laterally, almost 

 apically attached; fruit a small drupe, with fleshy, often 

 thin exocarp, and one 4-, or by abortipn 3—1 -seeded 

 pyrene, and often a central cavity; seeds exalbuminous. 

 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 Gumira Hassk.) 2. 



b. Galyx more or less regularly 5-toothed, sometimes sub- 

 truncate, 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 8. 



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. Dcrryana p. 110. 

 b. Cymes in corymbose pantcles, leaves petioled. . . 4. 



