FABACEAE 633 
1. Aeschynomene viscidula Michx. Perennial, the plant more or less densely 
sticky-pubescent. Stems branched at the base, the branches spreading or prostrate, 1-12 
dm. long, curved: leaves 1-2 em. long: leaflets 5-9, the blades firm, obovate, 3-12 mm. 
long, oblique, reticulated, mucronate, short-stalked: peduncles few-flowered : pedicels 
spreading : calyx campanulate ; tube prominently veined : corolla yellowish or purplish ; 
standard with a broadly orbicular retuse blade : pods 1-2 em. long, 2-3-jointed, the joints 
half-orbicular. 
In sandy pine lands, Georgia to Florida and Mississippi. Spring to fall. 
2. Aeschynomene Virginica (L.) B.S.P. Annual, the plant glabrate or hispid. 
Stems erect, 2-15 dm. tall, branching : leaves 2-10 em. long, the rachis more or less gland- 
ular, especially near the base: leaflets numerous, the blades linear or oblong-linear, 3-12 
mm. long, mucronulate, not reticulated : peduncles several-flowered : pedicels 4-6 mm. 
long : calyx campanulate ; tube not prominently veined : corolla nearly 1 em. long, reddish 
yellow ; dena with an orbicular-ovate blade notched at the apex: pods linear, 3-8 cm. 
long, the joints nearly square, easily separable. [A. hispida Willd. ] 
^ MT soil, on river banks, New Jersey and Pennsylvania to Florida and Louisiana. Summer 
and fall. 
36. ZORNIA Gmel. 
Annual or perennial herbs, with erect or prostrate stems. Leaves alternate : blades 
2-4-foliolate, commonly petioled : leaflets often glandular-punctate. Flowers perfect, in 
axillary or terminal conspicuously bracted spikes. Calyx membranous, the 2 upper lobes 
forming a lip about as large as the lower lobe, the 2 lateral lobes smaller. Corolla of 
various colors, ours yellow: standard with a broad clawed blade: wings oblique, often 
shorter than the somewhat lunate keel. Stamens monadelphous. Anthers alternately 
larger, attached at the base, and shorter, versatile. Ovary sessile : style filiform. Ovules 
numerous. Loment flattened, several-jointed, smooth or bristly, the joints indehiscent. 
, 1. Zornia bracteata ( Walt.) Gmel. Perennial by a long root, more or less densely 
strigilose. Stems branched at the base, the branches spreading or prostrate, 1-7 dm. long, 
simple or branching: leaves distant; leaflets often 4, the blades oval to elliptic or nearly 
linear, often somewhat broadest above the middle mucronate ; petioles shorter than the 
leaflets or longer : peduncles longer than the subtending leaves, few-flowered : bracts elliptic 
or oval, 7-11 long, acute, reticulated, with an auricle at the base : calyx-lobes ciliate, the 
lateral ones much shorter than the others : corolla yellow ; standard with a hooded blade 
jm ed claw: pods 3-4-jointed, 1-2 cm. long; joints echinate. [Z. tetraphylla 
chx. 
In sandy soil, Virginia to Florida, Texas and Mexico. Spring and summer, 
37. STYLOSANTHES Sw. 
Perennial, rigid herbs, with bristly or sticky-pubescent foliage. Leaves alternate: 
blades pinnately 3-foliolate : leaflets prominently nerved. Flowers of two kinds, the one 
complete but sterile, the other destitute of perianth and stamens but fertile, in axillary or 
terminal spikes or heads. Calyx sessile: tube slender: lobes 5, membranous, disposed in 
2 lips by the union of the 4 upper lobes. Corolla yellow or orange : standard with a spread- 
ing blade: wings oblong: keel incurved, entire. Stamens monadelphous. Anthers alter- 
nately longer and attached at the base, and shorter and versatile. Ovary sessile or nearly 
So: style filiform. Ovules 2-3. Loment 1-2-jointed, the lower joint empty, the upper 
Opening at the apex. PENCIL-FLOWER. 
Flowers accompanied b : 
by an appendage within the bract. 1. S. hamata. 
en - accompanied by an appendage within the bract. 
€ of the standard longer than broad; spurs curved: terminal joint of the pod 
Blade of the annot axile beak. io 2. S. biflora. 
e standard broader than long; spurs straight: terminal joint of the pod 
triangular, with the beak lateral. vicis : : 8. S. riparia, 
i. Stylosanthes hamata (L.) Taubert. Root elongated. Stems usually several, 
ascending or procumbent, 2-7 dm. long, often branched, lightly striate, with pubescent 
Lr below the stipules: leaflets 3, the blades oblong to oblong-lanceolate, 7-17 mm. long, 
tha at both ends and often short-mucronate, prominently nerved, glabrous except occa- 
tonal marginal hairs: spikes terminal, about 15 mm. long, few-flowered: calyx finely 
oe rent : corolla yellow: pods 2-jointed, the lower joint usually abortive, the terminal 
ne with 1-ribbed sides and a hooked pubescent beak. 
In sand, peninsular Florida and tropical America. Throughout the year. 
