March 27, 101=>] Two Hundred Twenty Six New Species-II 2733 



Derris surigaoensis Elm. n. sp. 



A climbing and sprawling shrub; stem be ridable, terete, 

 2 5 cm thick, chiefly branched at the top; wood white, very 

 soft, odorless and without taste; bark smoothish, greenish 

 brown, yellowish in the middle, nearly white on the inner 

 side; branches green, light brown lenticelled, terete, glabrous, 

 slender and dropping, the ultimate ones relatively short. 

 Leaves alternate, horizontal, somewhat paler beneath, char- , 

 taceous when old, the abruptly acute to acuminate apex 

 strongly recurved, drying light grny to brownish beneath and 

 greenish on the upper side, glnbrous, entire margins subin- 

 volute in the dry state, obtusely rounded and occasionally 

 slightly inequilateral at the base, elliptically elongated or 

 suboblong, variable in size, the average blades 1 dm long 

 by 4 cm wide at or above the base, 3 to 5-foliate, the 

 terminal leaflet considerably larger; petiole with the rachis I 

 dm long or longer, green, glabrous, subterete and minutely 

 caniculate along the upper side, the petiole base much thick 

 ened and drying blackish brown, the rachis extended 1.25 

 to 2 cm beyond the upper pair of lateral leaflets; petiolule 



4 to 7 mm long, thick, deep brown in the dry specimens; 

 midrib stout beneath, little sunken along the upper surface, 

 stramineus when dry; lateral nerves ascendingly curved, 

 obscure, about 5 to 8 pairs, reticulations very fine, similarly 

 prominent on both sides,. Inflorescence suberect, terminal 

 or subterminal, 1 to 4 dm long; branches alternate, few, 

 rather slender, green and glabrous, spicate or with only very 

 short lateral branchlets, striate or becoming angular, ascend- 

 ingly curved; flower bearing branchlets ' alternntingly scat- 

 tered from near the base, 1 to 2 cm long, slender; pedicels 



5 mm long, few and alternatingly scattered from the mid- 

 dle, very slender, divaricate, subtended by bract vestiges, 

 glabrate or only sparsely short hairy; calyx 3.5 mm long, 

 as wide across the slightly obliquely truncate and minutely 

 ciliate apex, rounded at the base, glabrous, longitudinally 

 marked with whitish striae; banner 12.5 mm long, broad 

 and truncately rounded at the lamina base and constricted 

 into a 2 mm long narrow claw, the hyaline side folded 

 and in the upper region with elongated spots, apex rounded 



