POPULAR FLORA. 143 



* * * Stamens 10, separate (Fig. 855). Petals 5, pea-like. Pod inflated, {Bapthia) False-Indigo. 



II. BRASILETTO Subfamily. Corolla sometimes papilionaceous or nearly so, but then with 

 the standard within the other petals, generally more or less irregular ; the petals overlapping one an- 

 other iu the bud. Stamens 10 or fewer, separate. 



Trees, with simple round-heart-shaped leaves, but appearmg rather later than the papilio- 

 naceous purple-red flowers, ( Cercis) Red-bud. 



Herbs, with abruptly pinnate leaves and yellow flowers, not papilionaceous, ( Cassia) Senna. 



Trees, with the leaves, or some of them, more than once compound. Flowers dioecious 

 or polygamous, not at all papilionaceous. 

 Stamens 10, and petals 5, on the top of the funnel-shaped tube of the calyx. Pods 



broad and hard. Leaves VBry large, twice-pinnate, ( Gymnocladus) Kentucky Coffee-tree. 

 Stamens and petals 3 to 5, on the bottom of an open calyx. Pods long and flat, hav- 

 ing a sweet juice or pulp inside. Leaves, some of them once pinnate, others twice 

 pinnate. Tree with compound thorns, (Gleditschia) Honey-Locust. 



in. MIMOSA Subfamily. Flowers very small, in heads or spikes, regular: petals edge to edge in 

 the bud, and sometimes united below. Leaves generally twice or thrice pinnate. 

 Stamens very many and long, yellow or yellowish. (Cult, in greenhouses: some species 



are wild far South), * Acacia. 



Stamens 5. Petals separate, whitish. Pod smooth, (Desmdnthus) Desmantiius. 



Stamens 4 or 5. Petals united into a cup, rose-color. Pod bristly, flat, breaking up into 



joints. Leaves closing suddenly when touched, (Mimosa) * Sensitive-plant. 



Stamens 10 or 12. Petals united into a cup, rose-color. Pod narrow, rough-prickly. 



Leaves rather sensitive. S , (Schrdnhia) Sensitive-Brier. 



Locust-tree. Robinia. 



Flowers showy, in hanging axillary racemes. Stamens diadelphous. Pod flat, several-seeded. 



Leaves odd-pinnate. — Trees, wild in the Southern, cult, in the Northern States. FI. in early summer. 



1 Common Locust-tree. Tree with a pair of spines for stipules; flowers white, in slender racemes, 



sweet-scented; pod smooth. R, Pseudacdcia. 



2. Clammy L. Tree with clammy twigs ; racemes thick; calyx purplish ; pod rough. R. viscosa. 



3. Bristly L. or Rose- Acacia. Shrub, with bristly stalks and twigs ; flowers large, rose-colored. 



R. hispida. 

 Clover (or Trefoil). Trifblinm. 



Flowers many in a head. Calyx persistent, its teeth very slender. Corolla withering away or per. 

 sistent after flowering; the petals grown together more or less into a tube below, and the diadelphous 

 stamens united with it. Pod generally shorter than the calyx, thin, only one- or few-seeded. Low 

 herbs: leaves with 3 leaflets, the stipules adhering to the base of the footstalk (Fig. 136). 



1. Ef.d Clover. Leaflets obovate or oval, with a pale spot on the upper side; flowers rose-red, in a 



dense head with leaves underneath it. Fields, cultivated. T.pralense. 



2. Buffalo C. Leaflets obovate, toothed : flowers rose-colored, pedicelled, in an umbel-like long- 



stalked head. Prairies, &c., W. & S. T. reflexum. 



8. White C. Low, smooth, creeping; leaflets oboordate or notched ; flowers white, in a loose umbel- 

 like head, raised on a long stalk. Fields, &c., everywhere. T. repens. 



