122 
MERRILL. 
two or three, nearly circular in outline, 2.5 cm in diameter, 2 cm thick, 
smooth, shining, brown, mottled with darker color, the hilum linear, 
extending more than one-half around the seed. 
Mindanao, Lake Lanao, Camp Keithley, Mrs. Clemens 1/19, and three sheets 
without number. 
This species in superficial characters is very similar to Dioclea reflexa Hook, 
f., and was at first considered by me to belong in that genus, as an intermediate 
between the sections Pachylobium and Eudioclea, having 10 fertile stamens and 
a linear hilum; it seems, however, to be referable to the above genus, in spite of 
its similarity to Dioclea reflexa. The flowers of both the above species are only 
about one-half as large as those of M. lauterbachii Harifis, but structurally they 
appear to be about the same. If the two species here described are correctly 
treated generieally, then Macropsychanlhus must be very closely allied to Dioclea. | 
This previously monotypic genus was based on Macropsychanthus lauterbachii 
Harms in Schumann & Lauterbach FI. Deutsch. Schutzgeb. Sudsee ( 1901 ) 366, 
pi. 10, and the presence of additional representatives in the Philippines is a case 
of interest from the point of geographical distribution. 
78. PUERARIA DC. 
Branches 4-angled . 1. P. tetragona 
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, subglabrescent, less than 5 mm wide 2. P. phaseoloides 
Stipules peltate, much produced below their point of attachment; leaflets 
ample, acuminate, rarely lobed; pods densely hirsute, about 8 mm wide. 
3. P. thunbergiana 
Flowers small, in dense, spike-like racemes which are paniculately arranged; 
leaflets not stipellate, strongly acuminate 4. P. warburgii 
V L' Pueraria tetragona sp. nov. 
Scandens, plus minus hirsuta, ramis quadrangulatis ; foliolis ovatis 
vel oblongo-ovatis, integris, submembranaceis, aeuminatis, lateralibus 
plus minus obliquis; stipulis lanceolatis, deciduis, basi non productis; 
racemis axillaribus, solitariis, quam petioli brevioribus; floribus albis, 
circiter 7 mm longis ; leguminibus lineari-oblongis, leviter hifsutis, 5 
mm latis. 
A seandent 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, produced 1 to 2 cm 
above the insertion of the lateral leaflets; leaflets submembranaceous, 
green and somewhat shining when dry, both surfaces with very few, 
scattered hairs, entire, base rounded or subacute, apex sharply acuminate, 
the lateral ones somewhat inequilateral, 7 to 12 cm long, 3 to 6.5 cm 
wide, with a pair of subbasal nerves, and three of four nerves on each 
side of the midrib above the basal pair ; petiolules 2 to 3 mm long, hirsute, 
the stipels acicular, about 1 mm long; stipules lanceolate, acuminate, 
less than 5 mm long. Eacemes axillary, solitary, 2 to 3 cm long, the 
