- 30 - 



P. OBLONGATA MIQ. 



Leaves oblong or 

 obovate, base roun- 

 ded; both sides + 

 pubescent; mem- 

 branous; pet. l'/ 2 - 

 3'/, c.M.; leaf 8-16 

 by 5-6 c.M. calyx 

 4-ribbed, with 4~ 

 large, obtuse teeth, 

 0.1-0.15 c.M. CO- 

 ROLLA-tube 0.1-0.15 

 c.M. 



P. OBLONGIFOLIA 

 MERR. ' 



var a 



var p 



LEAVES5- 



Leaves 



10 by 2-5 



11-16 by 3- 



c.M., enti- 



9c.M., 



rely gla- 



glabrous 



brous pet. 



or pubes- 



1-1.7 c.M. 



cent on 





nerves ; 





pet, 2-2.6 





c.M. 



coriaceous 



or char- 



taceous; reticulation 

 very distinct;leaf-base 

 rounded; Infi. 7-10 

 by 6-12 c.M.; CALYX 

 as in P. oblongata, 

 0.15-0.2 c.M.; corolla- 

 tube 0.15-0.2 c.M. 



P. PARASITICA. EL. 



Leaves coriaceous 

 base decurrent, con- 

 tinued below the 

 starting point of 

 the lowest nerves ; 

 both sides +; pubes- 

 cent: 10-30 by 5-20 

 c.M. ; pet. 1-2'/, cM.; 

 Infl. 11-32 by 5-27 

 c.M. CALYX-lips en- 

 tire, cal. 0-2 c.M, 

 COROLLA-tube 0.2- 

 0.37 c.M. 



P. TRICHOSTOMA 

 MIQ. 



Leaves ohartaceous, 

 base rounded, nerves 

 pubescent; 10-18 by 

 5-12 c.M. ; pet. 17 2 -2' /2 

 c.M ; Infl. 10 by 9- 

 12 c.M.; calyx wiih 

 4 small teeth, 0,1 -0.1 5 



C.M.; COROLLA- tube 

 0.25 c.M. 



24. Premna trichostoma ') MlQ. Fl. Ind. Bot. II, 892 (1856); Verb. 

 128. — P, parasatica CLARKE in HOOK f. Fl. Br. Ind. IX, 574 (1885), not 

 of BLUME. — Some specimens seem to form a transition to P. parasitica 

 See also under 23. P. oblongata. 



In. Herb. Bog. also from: 



Java: KOORDERS n. 34103 ft Pringombo, 800 M. in alt., scandent, 

 flowers white, on 25.8.1900. 



D i s t r b u t i o n : Java! Malay Peninsula! Borneo! 



25. premna Williams» MERR, Phil. Journ. Sei., Bot. X, 74 (1905); Verb. 



129. 



Distribution: Mindanao! 



26. Premna oblongifolia MERR. Phil. Gov. Lab. Bur. Bull. XXIX, 118 

 (1905) ; Verb. 129, — L eaves always coriaceous, distinctly reticulate, entirely 

 glabrous or with some hairs on the nerves beneath ; characteristic is the 

 oblong-obovate leaf (P. oblongata also has leaves of this form, but they 

 are always membranous and + pubescent on both surfaces); leaves oppo- 

 site, sometimes ternate (in Hort. Bog. sub singo XV. F. 1 ); pairs of nerves 

 4-6; 5'/ 2 -15.8 by 2'/ 2 -8.6 c.M.; petioles 1 - 2.6 c.M ; corymbs not larger 

 than 7-10 c.M.; in length, 5-8 c.M. in diam. — See aiso under 23. 

 P. oblongata. 



') Mr, Backer draws our attention to a Greek rule, according to which the th. 

 in the beginning changes into t when it occurs in a composed word and a following 

 letter turns into a double one (so we write thrix but trichostoma). 



