PACHYRRHIZUS. LEGUMINOSÆ. 251 
pus, Savi; DC. l. e.—L. microcarpus, DC. I. e—L. perennans, DC. l: e.— 
Dolichos Lablab, Linn. ; Spr. syst. 3. p. 249; Roxb. fl. Ind. 3. p. 305.—D. 
spicatus, Koen. ; Roxb. in E. I. C. mus. tab. 282.—D. albus, Lour. ; Spr. l. c. 
p. 250.—D. Benghalensis, Jacq. hort. Vind. 2. t. 124; Spr. l. c. p. 249.—D. 
purpureus, Jacq. frag. p. 45. t. 55 ; Spr. l. c. p. 250.—D. tetraspermus, Willd. 
sp. 3. p. 1044; DC. l e. p. 397; Spr. l. e.—D. cuspidatus, Grah. / in Wall.! 
L. n. 5566.— Rumph. Amb. 5. t. 136, 137, 141. Jc. 
So various are the forms of the legume, and the colour of the seed, that we 
agree with Roxburgh in bringing together many of the supposed species of 
authors. The characters proposed by Savi, aud adopted by De Candolle, 
are derived from the few permanent varieties known in Europe. 
773. (2) L. cultratus (DC.:) legumes oblong-linear, faleate and recurved 
at a right angle towards the apex, with a subulate point; seeds transversely 
oval.— DC. prod. 2. p. 402; Wight! cat. n. 744.—L. lignosus, Graham! in 
Wall.! L. n. 5538 (partly).—Dolichos cultratus, Thunb. ; Spr. syst. 3. p. 249. 
—D. ensiformis, T'unb.—D. lignosus, Roxb. fl. Ind. 3. p. 307 (not Linn.).— 
D. Lablab, Roxb. in. E. I. C. mus. tab. 281. 
Roxburgh enumerates six varieties. Our specimens of Dol. lignosus, ob- 
tained from the botanical garden of Edinburgh, and precisely agreeing with 
the figure in the bot. mag. t. 382, as well as with the Linnean description, is 
a very different plant, and apparently a true Dolichos, although we have not 
seen the fruit or seed: the flowers form a sort of umbel or very short lax ra- 
ceme at the apex of the pedüncle; they are solitary and do not spring out of 
glandular knobs. 
XLVII. PACHYRRHIZUS.  Rich.— Cacara, Pet. Th. 
Calyx with 2 caducous bracteoles, urceolate, 4-lobed, the upper lobe broad 
and emarginate. Corolla papilionaceous : vexillum roundish, spreading, with- 
out callosities, at the base with two plaits enclosing the claws of the wings : 
ale semilunate, with a long filiform spur. Stamens diadelphous (9 and 1), 
alternately shorter. Ovary with a crenulate ring round its base. U pper part 
of the style glabrous, spirally incurved. Stigma large. Legume linear, com- 
Pressed, straight, contracted between the seeds. Seeds 7-12, orbicular, com- 
pressed: hilum small.—Root a turnip-like tuber, often very large, eatable. 
Stems somewhat perennial, twining. Leaves pinnately-trifoliolate: leaflets 
With partial stipules. Racemes axillary, often very long. Flowers fascicled 
9n large glandular knobs, violet-blue. 
“774. (1) P. angulatus (Rich.:) young parts with reflexed soft hairs : leaf- 
lets angled-toothed, glabrous or villous ; lateral ones triangular ; terminal re- 
niform-rhomboid, acuminated : stipules large, ensiform : racemes very long : 
legume sprinkled with short hairs —DC. prod. 2. p. 402; Spr. syst. suppl. p. 
281; Wall.! L. n. 5526.—Dolichos bulbosus, Linn. sp. p. 1020 ; Roxb. fl. Ind. 
3. p. 309 ; in E. I. C. mus. tab. 1606.—Stizolobium bulbosum, Spr. syst. 3. 
P. 252.— Rwumph. Amb. 5. t. 132 ; Pluk. t. 52. Ff. 4. ; 
Roxburgh conjectures this may have come originally from America. 
XLVIII? PAROCHETUS. Ham. 
Calyx ebracteolate, campanulate, 4-cleft ; segments equally broad, the low- 
est one longer than the others. Corolla longer than the calyx, papilionaceous : 
vexillum incumbent, broadly obovate, emarginate, longer than the other pe- 
tals: keel obtuse, covered by the ale. Stamens diadelphous (9 and 1). Style 
_ glabrous. Stigma obtuse. “ Legume gibbous, many-seeded. Seeds round- 
. 18h”— Herbaceous perennial creeping plants. Petioles long, erect. Leaves 
