1 22 MERRILL. 



i\\<> (ir three, nearly circular in outline, 2.5 cm in diameter, 2 cm thick, 

 sniootli. shilling. l)ro\vn, mottled with darker injor. the hilum linear, 

 extendin<i more tluin one-half around the .seed. 



Mindanao, Lake Laiiao, Cain]) Keitliley, .Mrs. Clemens J/tf), and three sheets 

 witliuut number. 



This species in superlicial characters is very siniihir to Dioeha re/lexa Hook, 

 f.. and was at first considered by me to belong in that genus, as an intermediate 

 between the sections Pachylohium and Eudioclea, having 10 fertile stamens and 

 a linear hilum; it seems, however, to be referable to the above genus, in spite of 

 its simihnity to Dioclea reflexa. The flowers of both the above species are only 

 about one-half as large as those of M. lauterbachii Harms, but structurally they 

 appear to be about the same. If the two species here described are correctly 

 treated generically, then Macropsi/chcnithus must be very closely allied to Dioelca. 



This previously monotypic genus was based on .Macropsi/chanthus lauterbachii 

 Harms in Schumann & Lautcrbach Fl. Deutscli. Scliutzgeb. Siidsee (1901) 366, 

 pi. JO, and the presence of additional lepresentatives in the Philippines is a case 

 of interest from the point of geographical distrilmt ion. 



7S. PUERARIA DC. 



Branches 4-angled 1. /'. ielragona 



Branches terete. 



Flowers in simple racemes, medium sized ; leaflets stipellate. 



Stipules not produced below their point of attachment; leaflets mostly 

 medium-sized or small, rounded, acute, or apiculate-acuminate; pods 



slightly hairy, subglabrcscent, less than .5 mm wide 2. P.phaseoloides 



Stipules peltate, nuich produced below their point of attachment; leaflets 

 ample, acuminate, rarely Inbed; pods densely hirsute, about 8 mm wide. 



'?,. P. thunbergiana 



Flowers small, in dense, spike-like racemes which are paniculately arranged; 



leaflets not stipellate, strongly acuminate 4. P. warburijii 



]. Pueraria tetragona sp. nov. 



.Scandens, phis minus hirsuta, ramis quadrangulatis; foliolis ovatis 

 vel ohlongo-ovatis, integris, subniemhranaceis, acuminatis, lateralibns 

 plus mimis obliqiiis ; stipulis lanceolatis, deciduis, basi non productis; 

 racemis axillaribus, solitai'iis, quam ])etioli brcvioribus; lloribus albis, 

 circiter T mm longis; legumiuibus lincari-oblongis. leviter hirsiitis, 5 

 iiiin hitis. 



A scandent annual, the stems distinctly 4-angled, hirsute, especially 

 on the angles, with reflexed, brownish hairs. Leaves alternate, trifolio- 

 late, the petiole slightly hirsute. .5 to 8 cm long, ]iroduced ] to 2 cm 

 above the insertion of the lateral leatlets; leaflets submendjranaceous, 

 green and somewhat shining -when dry. both surfaces with very few, 

 scattered hairs, entire, base I'ounded oi- suliaculc, ape.K shar))ly acuiiiinalc. 

 the lateral ones somewhat inequilateral, 7 to 12 cm long. 3 to (i.5 cm 

 wide, witli a pair of subbasal nerves, and three of four nerves on each 

 side of the midrib above the basal ]iair : pdiohdes 2 to 3 nun long, iiirsute, 

 the stipels acicular. al)Out 1 mm long; stipules lanceolate, acuminate, 

 less than ') mm long, liacenics axillary, solitary, 2 to 3 cm lonir, the 



