336 



PAPILIONACEAE. 



[VOL. II. 



2. Galactia volubilis (L.) Britton. Downy Milk Pea. (Fig. 2229.) 



Hedysarum volubile L. Sp. PI. 750. 1753. 

 Galactia mollis Nutt. Gen. 3: 117. 1818. Not 



Michx. 1803. 

 Galactia pilosa Ell. Bot. S. C. & Ga. 2: 238. 1824. 



Not Nutt. 1818. 

 Galactia volubilis Britton, Mem. Torr. Club, 5: 



208. 1894. 



Finely downy-pubescent all over, similar in 

 general aspect to the preceding species. Leaf- 

 lets ovate, elliptic, or oval, obtuse or acutish, 

 sometimes emarginate at the apex, rounded or 

 slightly cordate at the base, downy beneath, 

 usually with some appressed pubescence above, 

 tft'-i%' long, 5 // -i2 // wide; peduncles some- 

 times elongated but variable in length; racemes 

 rather loose; flowers purplish, about 6" long; 

 pod linear, I'-i^' long, 2" wide, densely and 

 finely downy-pubescent. 



In dry soil, New York Island; Flushing, 

 Island, south to Florida, west to Pennsylvania, 

 Kentucky and Texas. June-July. 



43. RHYNCHOSIA Lour. Fl. Cochin. 562. 1793. 



Perennial twining trailing or erect herbs, with pinnately i-j-foliolate leaves, and yellow 

 mostly axillary and racemose flowers. Leaflets generally punctate with resinous dots, not 

 stipellate. Calyx 4-5-lobed, somewhat 2-lipped. Standard obovate or orbicular, spreading 

 or reflexed. Wings narrow. Keel incurved at the apex or falcate. Stamens diadelphous 

 (9 and l). Ovary nearly sessile; ovules 2, rarely I ; style filiform. Pod flat, oblong or 

 obliquely orbicular, 2-valved, i-2-seeded. [Greek, beak, from the beak-like keel of the 

 corolla.] 



About loo species, natives of warm and temperate regions. 

 9 others occur in the southern States. 



Leaflets 3. 



Stem twining or trailing. 



Racemes shorter than the leaves; flowers 3" -4" long. 

 Racemes longer than the leaves; flowers about 6" long. 

 Stem erect, i-2^ high. 

 Leaflets solitary, very broad; plants low, 3' -9' high. 



In addition to the following, some 



1. R. tomentosa. 



2. R. latifolia. 



3. R. e recta. 



4. R. simplicifolia. 



i. Rhynchosia tomentosa (I,.) 



H. & A. Twining Rhynchosia. 



(Fig. 2230.) 



Glycine tomentosa L- Sp. PI. 754. 1753. 

 Rhynchosia tomentosa var. volubilis T. & G. Fl. N. 



A. i: 285. 1838. 

 Rhynchosia tomentosa H. & A. Comp. Bot. Mag. x: 



23- 1835. 



Trailing or twining, more or less pubescent 

 with spreading hairs, simple or branched, i-3 

 long. Stipules ovate, acute, 2 // -4 // long, some- 

 times wanting; petioles shorter than the leaves; 

 leaflets 3, or the lowest leaves i-foliolate, ovate, 

 orbicular or broader than long, obtuse but gen- 

 erally pointed, i / -2 / long; racemes short-pedun- 

 cled or sessile, 2-8-flowered; flowers 3 // -4 // long; 

 calyx deeply 4-parted, the upper lobe 2-cleft; 

 pod oblong, acute, pubescent, 8 // ~9 // long, about 

 3" wide. 



In dry sandy soil, Virginia to Florida, west to 

 Texas. May-July. 



