LEGU MINOS J2. 89 



1. S. elatior, Swarts. Pencil Flower. 



Stem erect, herbaceous, somewhat branched above, often several from the root; 

 leaflets lanceolate, strongly straight-veined, smooth, acute ; upper stijjulcs sheathing i 

 spikes few flowered. 



Sandy woods and pine barrens. July— Sept. Stems § to 12 inches long, wiry, 

 oft in bristly. LeafletS% to V-A inches long, ^ to M widd Brads lanceolate, 

 hipped ciliate. Flowers yellow, in terminal compact heads> Legume 2-jointed, th« 

 lower joint sterile and stipitate, 1-seeded, kooLed at the summit. 



Tribe 4. LOTEJS. The Mclilot Tribe. 



Stamens monodelphous or diadelphous (9 and V); Legume continents 1-ccUcd. or 2-ecUed 

 lengthicitc. Zftft twining, climbing, nor bearing tendrils. 



17. ASTRAGALUS. Linn. Milk Vetch. 



Calyx 5-toothed or cleft. Corolla with the heel obtuse. 

 Stamens diadelphous. Legume 2-celled by the iiitroflec- 

 tion of the lower suture. — -Herbaceous or svffruticose plants, 

 with odd-pinnate leaves, and spiked or racemed flowers. 



1. A. Canadensis, L. Canadian Milk Vetch. 



Tall and erect; stem downy; leaflets 10 to 14 pairs with odd one clliptic-ob'ong, 

 Tather obtuse, smootbish; stipules broad-lanceolate, acuminate •; peduncles about 

 as long as the leaves; flowers in oblong spikes; legume ovate obloug, erect, smooth, 

 2-celled, many-seeded. 



Banks of streams. .Tune — Aug. Per. Ftem 1 to 3 feet high, bushy, very leafy. 

 Lc.iflets usually smooth above, slightly pubescent beneath. "Flowers pulc-ycllow, 

 \n spikes 1 to 4 inches long. Legume % inch long, leathery. 



18. ROBINIA. Linn. Locust. 



In honor of John and Vespasian Eobin, French botanist3. 



Calyx short, 5-toothed, teeth lanceolate, 2 upper ones 

 approximate. Vexillum large. Keel obtuse. Stamens 

 diadelphous (9 and 1). Style bearded. Legume com- 

 pressed, elongated, margined on the seed-bearing edge. — 

 Trees or shrubs with Hipular prickly spines, uneoually pinnate 

 haves, and showy axillary racemes of flowers. 



1. R. Pseudacacia. Locust Tree. 



Leaflets 8 to 12 pairs ovate and oblong; stipules prickly; racemes pendulous, 

 loose, slender ; legumes smooth. 



A handsome tree, native in our mountainous rcgipns, much cultivated for its 

 invaluable timber. May. Flowers white, fragrant, in racemes 3 to C inches long. 



2. 3. viscosa, Vent. Clammy Locust. 



Branchlets, &c, clammy ; leaflets ovate ; stipular spines very short. 



A handsome tree cultivated like the last ; native of the Southern Alleghenies 

 where it attains the height of 40 feet. Flowers numerous, crowded, rose-colore^ 

 in erect, crowded axillary racemes. 



3. R. hispid A, L. Rose Acacia. 



Skrvb mostly hispid ; tt iputor spinet scarcely any ; racemes loose, eub-ercct A 



