342 APOCYNACE.E. (DOGBANE FAMILY.) 



ual, long-peduncled, couimunly exceeding the leaves, loose-flowered; calyx 

 l^hes ovate ; lobes of the white or pale rose-colored corolla spreading or revo- 

 lute. - Rich soil, North Carolina, and northward. June-July. Stem 2-3 

 high. Corolla twice as large as in No. 1. 



2. ECHITES, P. Browne. 



Calyx 5-parted, with 3-5 glands at the base within. Corolla salver- or 

 funnel shaped, 5-lobed ; the tube dilated above the insertion of the stamens. 

 Filaments very short : anthers sagittate, bearing the pollen, and adhering to 

 the stigma in the middle. Nectary of 5 distinct or partly united glands. 

 Style simple : stigma thick, with a spreading membranous appendage at the 

 base. Follicles long and slender. Seeds linear-oblong, comose or plumose. 

 Mostly woody vines, with opposite leaves, and cymose axillary and ter- 

 minal flowers. 



1. E. umbellata, Jacq. Smooth; stem twining; leaves distant, oval, 

 mucronate, slightly cordate; peduncles 3 - 7-flowered ; calyx lobes ovate, 

 acuminate; corolla cylindrical, pubescent within ; anthers awnless ; stamens 

 inserted near the middle of the tube ; follicles divaricate. South Florida. 

 Leaves lA'-2' long, recurved and folded. Flowers white, 2' long. 



2. E. Andrews!!, Chapm. Smooth; stem low, erect or twining ; leaves 

 approximate, oval or oblong, the margins revolute ; peduncles 3 - 5-flowered ; 

 calyx lobes lanceolate-subulate ; corolla bell-shaped ; anthers awned ; glands 

 of the nectary 5, rounded, as long as the ovaries ; follicles incurved. (E. sub- 

 erecta, Andr.) Sandy shores, South Florida. Stem l-2high. Leaves 

 l^' -2' long. Corolla !' long, yellow. 



3. E. paludosa, Valil. Smooth, twining or floating, leaves oblong or 

 lanceolate, thick, short-petioled ; peduncles as long as the leaves, 1 -3-flowered; 

 calyx lobes oblong, acute ; corolla 2' long, funnel-shaped, white ; follicles fusi- 

 form ; seeds linear, plumose. Muddy islets of the Caloosa River, South 

 Florida. Oct. Stem long. Leaves 3' - 4' long. 



4. E. Sagrsei, A. DC. Smooth, erect, very leafy ; leaves from oval to 

 linear-lanceolate, acute, rigid, the margins revolute; peduncles much longer 

 than the leaves, racemosely several-flowered, the long pedicels single or by 

 pairs ; calyx lobes acuminate ; corolla yellow, hell-shaped, with spreading 

 lobes; anthers obtuse; seeds plumose. Rocky places, Miami, South Florida 

 ( Carber). Stem 1 high. Leaves and corolla 1' long. 



5. E. difformis, Walt. Leaves ovate-lanceolate to linear, acuminate, 

 narrowed into a petiole, smooth, or, like the branchlets, pubescent when 

 young; cymes spreading, as long as the leaves; flowers greenish. (Tra- 

 chelospernium, Gray. Forsteronia, A.DC ) River banks, Florida to North 

 Carolina. May - August. Stem twining, 10 - 1 5 high. Leaves 2'- 3' long. 

 Corolla 4" long. Follicles linear, 6'- 9' long. 



3. AMSONIA, Walt. 



Calvx small, 5-parted. Corolla funnel-form, 5-lobed. bearded within. Sta- 

 mens inserted above the middle of the tube : anthers oblong, obtuse. Stigma 



