ENUMERATION OF PHILIPPINE LEGUMINOSAE. 89 



lare a basi liberum, caetera connata. Ovarium stipitatum, l-ovulatum. 

 Legumen stipitatum, compressum, non articulatum, indehiscens, lanceo- 

 lato-acinaciforme^ acuniinatum^ reticulatum, monospermum. Semen 

 estrophiolatum, anguste oblongum. Frutex parvus, suberectus. Folia 

 3- vel 1-foliolata, foliolis amplis, basi triplinerviis. Floras parvi, race- 

 mosi vel rarius paniculati. 



Monarthrocarpus securiformis (Benth.) comb. nov. 



Desmodium seeuriforme Benth. PI. Jungh. (1852) 226; Miq. Fl. Ind. Bat. 1^ 

 (1855) 255; F.-Vill. Nov. App. (1880) 62; Vidal Phan. Cuming. Philip. (1885) 

 108, Eev. PI. Vase. Filip. (1886) 108. 



An undershrub 20 to 60 cm high, erect or slightly scandent, the stem 

 grayish or brownish, 3 to 4 mm in diameter, glabrous, smooth, simple, or 

 very rarely vs^ith one or two branches, the younger parts densely puber- 

 ulent. Leaves trifoliolate, the common petiole and rachis 5 to 10 cm 

 long; stipules lanceolate, acuminate, 5 to 7 mm long, striate, puberulent; 

 stipels acicular, puberulent, 3 to 5 mm long ; leaflets subrhomboid, oblong- 

 ovate to elliptic-ovate, chartaceous or submembranaceous, glabrous on the 

 upper surface, the lower somewhat puberulent on the veins and reticula- 

 tions, the apex rather strongl}'- subcaudate acuminate, the base triangular- 

 acute, the terminal leaflet equilateral 9 to 20 cm long, 5 to 7.5 cm wide, 

 the lateral ones one-half to two-thirds as large, and somewhat inequi- 

 lateral at the base, the rachis prolonged 1 to 3 cm beyond the insertion 

 of the lateral leaflets; nerves prominent on the lower surface, a pair 

 of opposite or alternate ones leaving the midrib at 5 to 10 mm above 

 the base and extending to or above the middle of the leaflet, the lateral 

 nerves above the subbasal pair 4 or 5 on each side of the midrib, curved- 

 ascending, ultimately anastomosing, the reticulations distinct, rather 

 lax; petiolules puberulent, 2 to 4 mm long. Inflorescence terminal, of 

 simple racemes, or rarely forming a 2- or 3-branched panicle, 10 to 

 20 cm long, puberulent. Flowers white, about 7 mm long, in pairs, the 

 bracteoles ovate-lanceolate, strongly acuminate, 1.5 mm long, the pedicels 

 about 2 mm long. Calyx 3 mm long, puberulent, 2-cleft, the upper lobe 

 with two minute teeth, the lower divided into three ovate-lanceolate, 

 strongly caudate-acuminate, 1.5 mm long teeth. Standard orbicular- 

 obovate, about 6 mm long, 5 mm wide, rounded, base narrowed to the 

 short claw; wings about 2 mm wide, united to the keel. Vexillary 

 filament free throughout. Ovary stipitate, lanceolate, narrowed at both 

 ends, viscid-puberulent, with a single ovule. Pod not articulated, com- 

 pressed, lanceolate-acinaciform, narrowed at both ends, stipitate, the 

 apex prominently acuminate, somewhat falcate or nearly straight, the 

 upper suture usually straight, the lower curved, scabrous-puberulent, 

 indehiscent, strongly reticulate, the pericarp coriaceous, 2 to 3 cm long, 

 4 to 5 mm wide. Seed solitary, brown, glabrous, narrowly oblong. 



