81 
leaflets: racemes slender, 20 to 30 cm, long, very sparsely flowered: pods linear, pen- 
dulous, 5 em. or more long.—In the foothills of the mountains west of the Pecos, 
Said to have a small edible tuberous rootstock, and known as camote del monte.” 
18. ROBINIA L. (Locust TREE.) 
Trees or shrubs, with odd-pinnate leaves, often prickly spines for 
Stipules, the ovate or oblong leaflets stipellate, showy flowers in hang- 
ing axillary racemes, and a flat thin pod margined on one edge. 
1. R. Neo-Mexicana Gray. Shrub 12 to 18 dm. high: stipular prickles subre- 
curved, sharp and stout: peduncles and the short crowded racemes hispid with 
straight glanduliferous hairs: calyx finely hispid: corolla rose-color: pods glandular. 
hispid.-.In mountain canons west of the Pecos, 
19. COURSETIA Dc, 
Trees or shrubs, with odd-pinnate leaves, setaceous stipules, orbieu- 
lar or obovate leaflets, axillary (mostly solitary) flowers (in ours), and 
a flat linear marginless pod. 
1. C. axillaris Coulter & Rose. Shrub or small tree, the younger parts pubescent : 
leaflets 3 to 5 pairs, reticulated, somewhat pabescent beneath, the lower pair orbicu- 
lar, the others obovate: axillary flower on peduncle 4 to 10 min, long: calyx pube- 
scent, with 5 broad equal teeth, the 2 upper high-connate: reflexed-vexillum 12 nm. 
broad: style very hairy above the middle: pod glabrous, 3.5 em. long, with lobed 
margin and on a broad stipe.—Near San Diego (Nealley). 
20. WISTARIA Nutt. 
High climbing woody twiners, with odd-pinnate leaves of 9 to 13 
ovate-lanccolate leaflets, minute sti pules and stipels, dense racemes of 
large and showy lilac-purple flowers, and elongated thickish knobby 
stipitate many-seeded pods. 
1. W. frutescens Poir. Downy or smoothish when old: wings of the corolla with 
one short auricle and an awl-shaped one as long as the claw.—Alluvial grounds 
throughout the Southern States and reported from Gillespie County. 
21. SESBANIA Pers, 
Herbs or shrubs, with abruptly pinnate leaves, many pairs of very 
entire leaflets, yellowish flowers in axillary loose racemes shorter than 
the leaves, a broad spreading or reflexed Standard, and flat or 4-angled 
or 4-winged pods. 
1. S. Cavanillesii Watson. Shrub or even small tree: leaflets 11 or 12 pairs, ob- 
tuse and mucronate: flowers bright yellow: pod long-stipitate, oblong, compressed, 
with 4 wings rising from the margins of the valves and produced beyond the sutures, 
the seeds separated by transverse partitions. (Daubentonia longifolia DC.)—Abund- 
ant on the Lower Rio Grande, and also near San Antonio. A very graceful shrub or 
small tree, with showy racemes of bright yellow flowers in August; seeds used as a 
substitute for coffee (Havard). 
2. S. macrocarpa Muhl. An annual glabrous herb or shrub: leaflets 15 to 25 
pairs, oblong-linear, obtuse and mucronate: racemes 1 to 4-flowered: flowers yellow 
and red, dotted with purple: pod curved, compressed, 4-sided, elongated and slender, 
knotted, pendulous, many seeded, the seeds separated by transverse partitions.— 
Along the Guadalupe and San Antonio, extending into Texas from the Gulf States. 
23204—vol. 2, No. 1——6 
