374 



FABACEAE. 



Vol. II. 



I. Kraunhia frutescens (L.) Greene. 



American or Woody Wisteria. 



Fig. 2524. 



Glycine frutescens L. Sp. PI. 753. 1753. 

 Wisteria speciosa Nutt. Gen. 2: ji6. 18 18. 

 Wisteria frutescens Poir. in Lam. 111. 3; 674. 1823. 

 Krauhnia frutescens Greene, Pittonia 2: 175. 1891. 

 Bradleia frutescens Britton, Man. 549. 1901. 



Climbing over trees and bushes to a length of 

 30°-40° or more, forming a stem several inches 

 in diameter. Leaves petioled ; rachis and short 

 stalks of the leaflets often pubescent; leaflets 9-15, 

 ovate or ovate-lanceolate, somewhat acuminate 

 but blunt at the apex, rounded at the base, entire, 

 i'-2' long, glabrous and dark-green above, pale 

 and sometimes slightly pubescent beneath ; ra- 

 cemes dense, 2'-y' long; pedicels 2"-^," long;, 

 calyx finely pubescent, sometimes with club- 

 shaped glands; corolla lilac-purple, 6"-9" long; 

 auricles of the wings one short and one slender; 

 pod linear, 2'-3' long. 



In low grounds, Virginia to Florida, Arkansas and 

 Texas. Kidney-bean tree. Virgin's-bower. April- 

 June. 



2. Kraunhia macrostachys (T. &G.) Small. Long-clustered Wisteria. Fig. 2525. 



Wistaria frutescens var. macrostachys T. & G. Fl. N. A. i : 



283. 1838. 

 Wistaria macrostachys Nutt. ; T. & G. Fl. N. A. i : 283. 



As synonym. 1S38. 

 A', macrostachys Small, Bull. Torr. Club 25: 134. 1898. 



A vine, sometimes 20° -25° long. Stem becoming ij' 

 thick, branching ; leaves 4'-%' long ; leaflets usually 9, 

 ovate to elliptic-lanceolate, i'-2i' long, acuminate, or 

 acute, rounded or cordate at the base; racemes 8'-i2' 

 long, loosely-flowered, drooping; rachis and pedicels 

 densely hirsute and glandular, with club-shaped glands ; 

 calyx pubescent like the pedicels, the tube campanulate, 

 the segments lanceolate, lateral ones about as long as 

 the tube, lower one longer; corolla lilac-purple or light 

 blue ; standard with blade 7" broad, decurrent on the 

 claw; pods 2'-4' long, constricted between the black lus- 

 trous seeds. 



In swamps, Indiana ("?), Illinois to Missouri. Louisiana 

 and Arkansas. Spring. 



23. ROBINIA L. Sp. PI. 722. 1753. 



Trees or shrubs, spreading freely from undergound parts, with odd-pinnate leaves, and 

 axillary or terminal racemes of showy flowers. Stipules small, often spiny. Petioles slightly 

 dilated at the base, enclosing the buds of the next year. Calyx-teeth short, broad, the 2 upper 

 somewhat united. Standard large, reflexed, not appendaged ; wings oblong, curved; keel 

 curved, obtuse. Stamens diadelphous ; anthers uniform, or the alternate ones smaller Ovary 

 stalked; ovules 00. Pod flat, linear, not septate between the seeds, margined along the upper 

 suture, tardily 2-valved. [Name in honor of John and Vespasian Robin, who first cultivated 

 the Locust-tree in Europe, 1550-1629.] 



About 8 species, natives of North America and Mexico. Type species : Robinia Pseudo-Acacia L. 



Twigs, petioles and pods glabrous ; flowers white ; a tree. i. 7?. Pseudo-Acacia. 



Twigs and petioles glandular ; pods hispid ; flowers pinkish ; a tree. 2. R. viscosa. 



Twigs and petioles bristly ; pods hispid ; flowers pink or purple ; a shrub. 3. R. hispida. 



