562 
at base, but diminishing rapidly towards summit, usually dark brown- 
purple, rather acutely 4-angled below, almost terete towards summit, 
more or less sulcate on the faces, especially below, smooth and glab- 
rous or with a few lax delicate hairs up to the inflorescence, there 
very sparsely to rather densely puberulent or short-pubescent; 
petioles 2-4 dm. long, rather stout, straight or somewhat arcuate 
below, angled, rather deeply sulcate on the upper face towards 
base, rather densely pubescent in the groove, otherwise nearly 
glabrous or sparsely pubescent, with lax hairs especially towards 
summit, somewhat dilated at apex, much enlarged and with thin 
wing-like margins clasping the stem at base; leaves biternate, 
the terminal division usually consisting of a single leaflet much 
larger than the others, but occasionally trifoliolate, the lateral di- 
visions always trifoliolate ; petiole of terminal division 10-12 cm. 
long, angled and sulcate like the main petiole, sparsely pubescent 
with lax delicate hairs, the groove densely so ; petioles of lateral 
divisions 6-9 cm. long, equal or one as much as 2 cm. longer than 
the other; petiolules of lateral leaflets of terminal division (when 
present) about 5 mm. long, deeply sulcate on the upper face, very 
pubescent, especially in the groove; petiolules of leaflets of lateral 
divisions shorter, otherwise similar ; terminal leaflet of terminal di- 
vision 10-20 (mostly 15-16) cm. long, 12-20 (mostly about I 5) 
cm. wide between the apices of the two largest lobes, very broadly 
obovate in outline, equilateral, sharp acuminate at apex, deeply 
cordate with a sinus of equal width throughout or widening to- 
wards the mouth, coarsely and irregularly dentate, deeply and 
acutely palmately three-lobed, the primary lobes themselves less 
deeply 2-3-lobed and the secondary lobes in turn slightly 2-3- 
lobed, thin, dark green above, paler beneath, smooth and glabrous 
above, sparsely short-ciliate, sparsely to rather densely pubescent 
along the veins beneath with rather long, appressed, delicate, lus- 
trous hairs, very veiny, the veins prominent, especially below, 
strongly tending to anastomose, the two largest lateral ones nearly 
as strong as the midvein ; other leaflets smaller and inequilateral, 
otherwise similar ; inflorescence a simple panicle of 2-4 slender 
racemes, the terminal and much the longest one 15-30 (usually 
about 20) cm. long; rhachis and pedicels sparsely, or the pedicels 
occasionally rather densely pubescent with short straight hairs; 
pedicels (in flower) about 2 mm. long, rather slender, much thick- 
ened at summit, subtended by a lance-subulate bract about 2 mm. 
long, bearing at base 2 laterally disposed, ovate-triangular, acute, 
.ciliolate bractlets about I mm. long, pedicels (in fruit) 4-5 mm. long ; 
sepals 5, fugacious, 4.5-5 mm. long, 3-4 mm. wide, rounded at 
apex, narrowed at base, concave; the three outer obovate-oblong, — 
with about 7 distinct longitudinal veins and obscure cross-veins ; 
the two inner broadly obovate, more deeply concave, thinner in 
texture and whiter in color, with 5-7 longitudinal veins and dis- 
