334 PAPILIONACEAE. (Vor. I. 
Style filiform, not bearded. Pods from the upper flowers linear-oblong, several-seeded, 2- 
valved, those from the lower oboyoid, fleshy, mainly 1-seeded, [Latin, referring to the 
curyed keel of the corolla. ] 
About 7 species, natives of North America, eastern Asia and the Himalayas. Only the follow- 
ing are known in North America. 
Leaves thin; bracts small; plant pubescent or glabrate. 1. F. comosa. 
Leaves firm; bracts large; plant villous-brown-pubescent. ; 2. F. Pitcheri. 
1. Falcata comosa (L.) Kuntze. Wild or Hog Pea-nut. (Fig. 2225.) 
Glycine comosa I,. Sp. Pl. 754. 1753. 
Glycine monoica I,. Sp. Pl. Ed. 2, 1023. 1763. 
Amphicarpa monoica Ell. Journ. Acad. Phil. 1: 
373- 1817. 
Falcata comosa Kintze, Rey. Gen. Pl. 182, 1891. 
Slender, simple or sparingly branched, climb- 
ing, pubescent or glabrate, 1°-S° long. Stipules 
oblong or ovate, 2/’ long, striate; leaflets 
broadly ovate or rhombic-ovate, acute at the 
apex, rounded at the base, the lower inequi- 
lateral, 1/-3/ long; racemes of petaliferous flow- 
ers mainly simple; bracts small, ovate, obtuse ; 
flowers purplish or white, 6’’-7’’ long; pedicels 
equalling or exceeding the bracts; pods of the 
petaliferous flowers about 1’ long, 3’ wide, 
pubescent, especially along the margins. 
Moist thickets, New Brunswick to Florida, west 
to Lake Superior, Nebraska and Louisiana. Aug.— 
Sept. 
2. Falcata Pitcheri (IT. & G.) 
Kuntze. Pitcher’s Hog Pea- 
nut. (Fig. 2226.) 
Amphicarpaea Pitcheri T. & G. Fl. N. A. 1: 
292. 1838. 
aeeare Pitcheri Kuntze, Rev. Gen. Pl. 182. 
ogi. 
Similar to the preceding but generally 
stouter, villous-pubescent throughout with 
reflexed brown hairs. Leaflets larger and 
thicker, sometimes 4’ long; pedicels 
mostly shorter than the nearly orbicular 
canescent bracts; ovary and pods of the 
petaliferous flowers pubescent through- 
out, subterranean fruit less abundantly 
produced than in F. comosa ; calyx larger. 
Moist thickets, western New York to Ne- 
braska, south to Tennessee and Texas. Per- 
haps intergrades with the preceding species. 
Aug.-Sept. 
41. APIOS Moench, Meth. 165. 1794. 
Twining perennial vines, with pinnately 3-7-foliolate leaves, small stipules and rather 
large brownish-purple or red flowers, mainly in axillary racemes or panicles. Calyx cam- 
panulate, somewhat 2-lipped, the 2 lateral teeth very small, the 2 upper united and short, . 
the lower one long and acute. Standard ovate, or orbicular, reflexed. Wings obliquely 
obovate, adherent to the elongated incurved at length twisted keel. Stamens diadelphous 
(9 and 1); anthers all alike; ovary nearly sessile; ovules o; style slender. Pod linear, 
straight or slightly curved, compressed, 2-valved, many-seeded. Rootstocks usually tuberous. 
[Greek, pear, from the shape of the tubers. ] 
Four known species, 1 of eastern North America, 2 of China and 1 of the Himalayas. 
