young finely short-pilose above and densely tomentose beneath, at maturity 

 glabrous and glossy above and still tomentose on lower surface, with prominent 

 venation beneath; spikes of inflorescence (15-) 20-40 cm. long; calyx oblique, 

 narrowly companulate, pubescent, the lobes lanceolate and about half as long 

 as the tube; banner purple; pod 6-8 mm. long, more or less curved dorsally, 

 pubescent and with large resinous gland-dots. 



Deep acid woodlands and bogs, e. Tex., May-June; Ark., La. and Tex. 



3. Amorpha texana Buckl. 



Shrub 1-3 m. tall, with spreading branches; branches, foliage and inflorescence 

 more or less pubescent to glabrous; leaves 10-15 cm. long; petioles 1—2 cm. 

 long; leaflets 7 to 15, broad-oblong or ovate, 15-40 mm. long, 15-30 mm. broad, 

 rounded at both ends or emarginate apically, firm, dark-green and glossy above, 

 paler and pubescent beneath at least along the inconspicuous veins; petiolules 3-5 

 mm. long, usually pubescent and conspicuously glandular; spikes of inflorescence 

 solitary or few, (5-) 10-15 (-20) cm. long, rather loosely flowered at least near 

 the base; rachis puberulent; calyx narrow-campanulate, 4-5 mm. long, uniformly 

 pubescent or glabrous, gland-dotted; calyx lobes all much shorter than the tube, 

 the 2 upper ones blunt or round, the 3 lower short-lanceolate and acute; banner 

 blue or violet; pod 6-7 mm. long, nearly straight dorsally, conspicuously gland- 

 dotted. Incl. var. glabrescens E. J. Palm. 



Scarce along Edwards Plateau creeks and rivers in Bandera, Blanco, Comal, 

 Gillespie, Kendall and Kerr cos. in Tex., spring; endemic. 



4. Amorpha fruticosa L. Bastard indigo. Fig. 499. 



Shrub 2-3 m. tall; branches and foliage more or less pubescent with short- 

 appressed hairs; leaves 1-2 dm. long; petioles (1-) 2-3 cm. long; leaflets 11 to 

 27 (to 35), oblong or elliptic, rounded or narrowed at base, rounded or rarely 

 abruptly pointed apically, 15-30 mm. long, 7-15 (-20) mm. broad, firm but 

 thin at maturity, dark-green and slightly reticulate-veined above, paler and spar- 

 ingly gland-dotted and more or less pubescent at least along veins beneath, not 

 crowded on rachis; petiolules short, not glandular-warty; spikes solitary or several, 

 8-15 (-20) cm. long, peduncled; calyx 3—4 mm. long, nearly glabrous or pubes- 

 cent; calyx lobes all much shorter than the tube, the upper 2 broad and obtuse, 

 the lower 3 triangular and acute, villous or ciliate along the margins; banner 

 dark-blue; pod 6-7 mm. long, slightly curved dorsally, glabrous and conspicuously 

 gland-dotted. 



Widespread, on the edge of water of lakes and streams, depressions, boggy 

 places and floodplain woods, Apr.-Aug.; represented with us by 4 subtaxa: 



Var. fruticosa. Leaflets broad, elliptic. Rare in e. Tex.; e. U.S. 



Var. angustifolia Pursh. Leaflets narrower. Widespread in Tex. except absent 

 in Rio Grande Plains and rare in e. and far w. Tex.; widely scattered in U. S. 



Var. croceolanata (P. W. Wats.) Mouillef. With densely pubescent leaves and 

 calyxes. Rare in s.e. Tex.; s.e. U. S. 



Var. occidentalis (Abrams) Kearn. & Peeb. With oval or oblong glabrate leaflets 

 and mostly solitary spikes. Scattered in w. half of Tex. to Wyo., Calif., N. M., 

 Ariz., Son., etc. 



12. Sesbania scop. 



Annual or perennial herbs or subshrubs or weak deciduous shrubs, unarmed, 

 with long green glabrous rarely branched branches and stems; leaves alternate, 

 remote, once even-pinnately compound, often 2-3 dm. long; petioles short; 

 stipules herbaceous, caducous; leaflets numerous, usually linear or narrowly ob- 



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