184 NORTH AMERICAN FLORA [Volume 24 



13-14 mm long; blades of the wings and keel-petals with broad rounded hasal auricles; 

 pod 4-6 cm long, 4 mm. wide, stipitate, glabrous; seeds oblong, 4 mm. long, 2.5 mm. bioad. 

 dark-brown with black dots 



Type locality : Near San Luis Potosi. 



Distribution: San Luis Potosi and Zacalecas to Puebla. 



3. Peteria Thompsonae S. Wats. Am. Nat. 7: 300. 1873. 



Stem herbaceous, except at the very base, 2-4 dm. high, glabrous or nearly so, straw- 

 colored, strict; stipular spines 2-5 mm. long; leaves 6-13 cm. long; rachis strigose; leaflets 

 13-21, oval, 6-15 mm. long, rounded at the apex, glabrous above, strigose beneath; raceme 

 solitary, terminal, 1-2 dm. long; bracts linear-subulate, deciduous; pedicels 5-8 mm. long; 

 calyx-tube 7-8 mm. long, hirsute and glandular-pubescent, the lobes linear-subulate, attenu- 

 ate, 7-8 mm. long, the upper two united half their length; corolla 15-20 mm. long, ochro- 

 leucous; blade of the banner suborbicular ; those of the wings and keel-petals broadly obovate, 

 with a rounded basal lobe; pod about 5 cm. long, 4 mm. wide, glabrous, about 6-seeded; seeds 

 oval, compressed. 



Type locality: Kanab, southern Utah. 



Distribution: Central and southern Utah 



Subtribe 2. MILLETTIANAE. Trees or (ours) woody vines, with alternate 

 odd-pinnate leaves and persistent stipules, and usually with stipels; leaflets 

 netted-veined. Flowers in terminal racemes or panicles Calyx campanulate, 

 5-toothed, the lobes often minute, or the upper two and the lower three more 

 or less united, forming an upper and a lower lip, the upper two sometimes wholly 

 united. Corolla papilionaceous, the petals short-clawed, the banner broad, 

 spreading or reflexed, often with two folds or callosities at the base; both the 

 wings and the keel-petals adnate at the apex. Stamens monadelphous or 

 diadelphous, the upper filament free, at least at the base; anthers uniform. Pod 

 flat, 2-valved, elongate, several- or many-seeded. Seeds mostly reniform, 

 sometimes round, without a strophiole. 



4. KRAUNHIA Raf Med Repos. II 5: 352. 1808. 



Diplonyx KaF. PI. Luduv. 101. 1817. 



Thyrsantkus Ell. Jour. Acad. Phila 1: 371. 1818. 



Wisteria* Nutt. Gen. 2: 115. 1818. 



Bradlcya Britton, Man. 548. 1901. Not Bradka Adans. 1763. 



High-climbing woody vines. Leaves odd-pinnate, with small stipules and stipels. Flowers 

 in terminal racemes, with deciduous bracts. Calyx more or less 2-lipped, the upper lip with 

 2 broad teeth united to near the apex, the lower lip with 3 longer and narrower teeth. Corolla 

 blue or purplish, rarely white, the petals subequal in length. Banner with a suborbicular 

 blade and short claw, reflexed, the blade with 2 callosities or appendages. Wings free, clawed, 

 the blades obliquely obovate, falcate, with a prominent basal auricle on the upper margin, 

 sometimes also with a smaller tooth on the lower side. Keel-petals clawed, united at the apex, 

 the blade lunate with a salient basal lobe. Stamens diadelphous, the upper filament free or 

 slightly adherent at the middle to the staminodial sheath; anthers uniform. Ovary stipitate, 

 many-ovulcd, glabrous; style inflexed, terete, glabrous; stigma small, terminal. Pod elongate, 

 2-valved, the valves slightly convex. Seeds leniform, without strophiole. 



Type species, Glycine frutescens L. 

 Leaflets 7-13; basal auricles of the wings reflexed; peduncle glandular as well 

 as pubescent. 



Racemes 1 dm. long or less; calyx-lobes all much shorter than the tube. 1. K. frutescens. 



Racemes 2-3 dm. long; lowest calyx-lobe fully as long as the tube. 2. K. macrostachys. 



Leaflets 15-19; basal auricles of the wings porrect; peduncle puberulcnt. 3. K. floribunda. 



•Named by Nuttall for Dr. Caspar Wistar, and often spelled Wistaria by later authors. 



