326 Petr^ovitex. 



2i/„— 31/2 cM. long; bracts minute; calyx densely stellately 

 pubescent and glandular without; lobes 5, somewhat 

 enlarged already before flowering-time, 0.5—0.7 cM.; 

 corolla smaller than the calyx, 2-lipped, upper lip 2-lobed 

 or entire, lower 3-lobed, softly pubescent without except 

 on the lower part of the tube; lobes with throat and 

 basal part of filaments sparsely and minutely villous; 

 stamens 4; ovary densely white-glandular in upper half, 

 glabrous in the lower one, villous at apex; style with 

 unequally 2-lobed stigma; fruit included in the calyx, the 

 tube of which is enlarged up to 0.6—0.7 cM., the lobes 

 up to 1.5—1.8 by 0.4—0.5 cM.; fruiting calyx sparsely 

 pubescent on all parts, especially on the ribbed tube and 

 the lower side of the 1 -nerved, obovate-spathulate lobes. 

 Distribution: Borneo! {Winkle c no. 2756, etc.), Mindanao 

 (San Ramon, Halliec no. 4722, etc.). 



3. P, Riedelii Oliver in HooA:., Ic. PI. XV, 16, t. 1420 

 (1883); Forbes, Wander. Nat. f. Mal. Arch. II, 225; 

 Pulle in Lorentz, Nova Guinea VIII, 2, 403 and VIII, 

 4, 687; Schum. u. Laulerb., Fl. D. Schutzgeb. Sudsee, 

 527; Schum. u. Hoik., Fl. Kais-Wilh. land, 122; Warburg, 

 Engl. Jahrb. XIII, 427; Hemsley. Chall. Rep. Bot. I, 110 

 and 178; Hall, f., Med. 's Rijks Herb. no. 37, 84-A 

 climbing shrub, 5—20 M. high; branchlets, somewhat 

 quadrangular, with petioles and inflorescences minutely 

 and sparsely pubescent, glabrescent; leaves opposite, 

 usually biternate, 9-foliolate, often with less leaflets, with 

 all transition-form from 9- to 3-foliolate, lateral leaflets 

 often inequilateral; leaflets chartaceous, ovate-lanceolate or 

 broadly ovate, base cuneate or subtruncate, apex obtusely 

 apiculate, margins entire, pairs of nerves 6 — 9; above 

 glabrous except nerves, beneath glabrous, somewhat glan- 

 dular, sometimes with some scales and simple hairs; nerves 

 minutely pubescent; 2V2 — 10 by 1.2—5 cM. ; petiolules 

 0—1 Va cM., the lateral leaflets being shorter petioluled, 



