[VOL. II. 



i. Apios Apios (L. ) MacM. 

 nut. (Fig. 2227.) 



PEA FAMILY 

 Ground- 



Glycine Apios L. Sp. PI. 753. 1753. 

 Apios tuberosa Moench, Meth. 165. 1794. 

 Apios Apios MacM. Bull. Torr. Club, 19: 15. 1892. 



Slender, pubescent or glabrate, climbing over 

 bushes to a height of several feet. Rootstock 

 tuberous; stipules subulate, i // -2'' / long, decidu- 

 ous; leaves petioled; leaflets 5-7 (rarely 3), ovate 

 or ovate-lanceolate, acute or acutish at the apex, 

 rounded at the base, \ f -$ f long; racemes axillary, 

 often compound; peduncles shorter than the 

 leaves; flowers numerous, brownish purple, odor- 

 ous, about 6" long; rachis of the inflorescence 

 knobby; pod linear, straight or slightly curved, 

 pointed, 2 / -4^ / long, about 2^" wide, many- 

 seeded, its valves rather coriaceous. 



In moist ground, New Brunswick to Florida, west 

 to western Ontario, Minnesota. Kansas and Louisi- 

 ana. Stem with milky juice; tubers edible. July- 

 Sept. 



42. GALACTIA P. Br. Civ. & Nat. Hist. Jamaica, 298. 1756. 



Prostrate or climbing perennial vines (sometimes erect and shrubby), mainly with pin- 

 nately 3-foliolate leaves, small and deciduous stipules, and purple or violet axillary race- 

 mose flowers. Calyx 4-lobed, bracteolate, the lobes acute, often as long as the tube. 

 Standard orbicular or obovate. Wings narrow, obovate, adherent to the narrow, nearly 

 straight keel. Stamens diadelphous or nearly so (9 and i); anthers all alike. Ovary 

 nearly sessile; ovules oo ; style filiform, not bearded. Pod linear, straight or slightly 

 curved, usually flattened, 2-valved, several-seeded. Fleshy few-seeded pods are sometimes 

 produced from subterranean apetalous flowers. [Greek, milk-yielding, many of the species 

 having milky sap.] 



About 50 species, natives of warm and temperate regions, most abundant in America. Besides 

 the following, about 15 others occur in the southern and southwestern states. 



Nearly glabrous throughout; pods slightly pubescent. 

 Finely downy-pubescent; pods very downy. 



1. G. regularis. 



2. G. volubilis. 



i. Galactia regularis (L.) B.S.P. 

 Milk Pea. (Fig. 2228.) 



Doli'chos regularis L. Sp. Pi. 726. 1753. 

 Galactia glabella Michx. Fl. Bor. Am. 2:62. 1803. 

 Galaclia regularis B.S.P. Prel. Cat. N.Y. 14. 1888. 



Prostrate, glabrous or sparingly appressed- 

 pubescent; stems matted, usually branching, i- 

 2 long. Stipules minute, deciduous; petioles 

 shorter than the leaves; leaflets elliptic or ovate- 

 oblong, obtuse and often emarginate at the 

 apex, rounded or slightly cordate at the base, 

 yt f -\Yt f long, 4 // ~9 // wide; peduncles longer 

 than the petioles and generally exceeding the 

 leaves, erect, 4-io-flowered; racemes loose or 

 dense; pedicels about \y z " long; flowers red- 

 dish-purple, 6 // -8 // long; pods linear, straight, 

 or slightly curved, slightly pubescent, I'-ij^' 

 long, 2" wide, 4-7-seeded. 



In dry sandy soil, southeastern New York, 

 Pennsylvania, pine barrens of New Jersey, south 

 to Florida and Mississippi. July-Aug. 



