XIII, c,i Merrill: Philippine Plants, XIII 17 



gis, lineari-oblanceolatis, planis; ovario 6-ovulatis; leguminibus 

 oblongis, planis, 2 cm longis. 



A prostrate undershrub from a much thickened woody root, 

 the branches spreading, prostrate, distinctly woody, slender, 

 up to 40 cm in length, branched, the branches and branchlets 

 dark reddish-brown, glabrous, terete, or the ultimate ones very 

 obscurely angular. Leaves 1.5 to 3 cm long, 1- to 4-jugate, the 

 pinnae 1 cm long or less ; leaflets 12 to 16 pairs, sessile, oblong, 

 thick, 2 to 3 mm long, obscurely nerved, base inequilaterally 

 rounded, apex obtuse to minutely apiculate, margins in young 

 leaves sparingly ciliate; stipules inequilateral, slenderly acumi- 

 nate, ovate, about 3 mm long. Heads axillary, yellow, their 

 peduncles slender, 2 to 3 cm long. Lower flowers neuter. Calyx 

 less than 1 mm long. Petals somewhat oblong-oblanceolate, 2 mm 

 long, free. Staminodes petaloid, yellow, flat, membranaceous, 

 linear-oblanceolate, about 1 cm long. Perfect flowers : Calyx 1.5 

 to 2 mm long, the teeth 5, ovate, obtuse to subacute, 0.5 mm long. 

 Petals 5, free, about 2.5 mm long, oblong-spatulate. Filaments 

 filiform, 4 mm long; anthers oblong-elliptic, 1 mm long, falling 

 very soon after anthesis, tipped with a minute sessile gland. 

 Ovary subsessile, compressed, oblong, inequilateral, glabrous; 

 ovules about 6; style 3 mm long. Pods oblong, thin, brown, 

 about 2 cm long and 5 mm wide, minutely apiculate. 



Luzon, Ilocos Norte Province, Burgos, Bur. Set. 27169 Ramos, March 13, 

 1917, in old dry rice paddies at low altitudes. 



This species in many respects resembles Neptunia triquetra Benth., 

 which extends from India to Indo-China, but is smaller, with much smaller 

 leaves, and with but five stamens, and very different staminodes. It is 

 distinctly woody, the root being much thickened, the prostrate stems not 

 at all herbaceous. On account of its five stamens its true alliance is with 

 the Australian Neptunia gracilis Benth. and N. monosperma F. Muell., 

 being more distinctly allied to the former. It is easily distinguished from 

 Neptunia gracilis Benth. by its much smaller leaflets. 



CROTALARIA Linnaeus 



CROTALARIA TRIFOLIASTRUM Willd. Sp. PI. 3 (1806) 983. 



Luzon, Province of Ilocos Norte, Burgos, Bur. Sci. 27265 Ramos, March 

 15, 1917, in open places near streams at low altitudes. 



Tropical Asia to northeastern Australia; new to the Philippines. 



SPATHOLOBUS Hasskarl 

 SPATHOLOBUS PH ILIPPINENSIS sp. nov. . 



Frutex scandens inflorescentiis exceptis glaber; foliolis 

 oblongo-ovatis ad ovatis, chartaceis, usque ad 11 cm longis, 

 obtusis, glaberrimis, nervis utrinque circiter 7 ; legumir.ibus cir- 

 citer 11 cm longis et 3 cm latis, in siccitate brunneis, nitidis, 



153049 2 



