142 Premna. 



2— 6V2 cM.; moreover all intermediate forms between 

 these 2 extremes, forming a uninterrupted series ; corymbs 

 with minute bracts. 10—18 cM. long, 10—40 cM. in diam., 

 on a peduncle of 2— SVs cM- being smaller (10— 13 cM. 

 long, 10—15 in diam.) in the forms with smaller leaves; the 

 largest reaching 10—17 cM. long, 19—25—40 cM. in diam.; 

 calyx very variable, 2-lipped, one lip 2-toothed or sub- 

 truncate, the other 2- or 3-toothed or entire or undulate; 

 teeth obtuse or acute, sometimes subequal; 0.15—0.2 cM., 

 usually sparsely pubescent and glandular; corolla white 

 or greenish; tube either very short, as long as the calyx 

 or a httle longer, or rather long, reaching 0.3 cM.; more 

 or less 2-lipped, 4-lobed; lobes sometimes subequal; some- 

 what minutely pubescent without, sometimes subglabrate; 

 stamens inserted in the villous throat, somewhat exsert; 

 anthers reniform; cells opening by elliptical pores; style 

 as long as the stamens; stigma shortly bifid; ovary gla- 

 brous, sometimes somewhat glandular; fruits black. 



Subspecies a Truncatolabium H. J. Lam, nov. subsp. — 

 ^o/«a plerumque minora, rotundata sive ovato-rotundata 

 sive elliptica, basi rotundata vel subcordata, interdum 

 subacuta, apice rotundata vel abrupte acute obtuseve 

 acuminata vel subacuta, saepe crenata, ceteroquin Integra, 

 4V2-6V2- 131/2 cM. longa, 3Vs-5V2-llV2 cM. lata, 

 petiolo 0.7—1.7 — 4 cM. longo; corymbi 10—13 cM. longi, 

 10—15 cM. diam.; calyx plerumque 2-labiatus, labio supe- 

 riore integro, rare 2— 3-dentato vel undulato, inferiore 

 2-dentato, dentibus obtusis acutisve; rare truncatus; corollae 

 tubus plerumque calycem aequans, interdum superans (tab. II). 



Sumatra: Diepenhorst no. 2147 Hort. bog., Priaman, 

 (= P. laevigata Miq. (partly)); Teysmann, Singled, in 

 H. L.-B. sub no. 908.266—986. 



Java: Blume, in H. L.— B. sub no. 908.266—168 and 

 252, (P. abbreviata Miq.) - Horsfield, in H. A. R.-T. 

 sub no. 049894 (P. cyclophylla Miq.) — Blume, in 



