108 PKIMULACEAE. 



' ' n 

 '/<' 1. L. brasiliense (Boiss.) Small. Leaf -blades oblong, 6-12 cm. long, rounded 



or retuse at the apex: flower-stems 2-5 dm. tall: bracts oval, obtuse: calyx 

 about 3^ mm. long; lobes round-ovate: corolla white. — Sand-dunes, ham- 

 mocks, and rocky thickets, U. S. keys, U. keys. 



> 2. L. angustatum (A. Gray) Small. Leaf -blades linear, 4-7 cm. long, cuspi- 

 date at the apex: flower-stems about 3 dm. tall: bracts broadly oblong, acute: 

 calyx about 5 mm. long; lobes 5, ovate: corolla white or pinkish — Salt marshes. 

 Big Pine Key. 



2. PLUMBAGO L. Shrubby herbs with leafy stems or vines. Flowers 

 in terminal spikes. Calyx tubular with stalked glands, the lobes erect, with 

 hyaline sinuses. Corolla salverform. 



J4-^. p. scandens L. Stems 5-12 dm. long, branched: leaf -blades oblong to 

 oblong-lanceolate or ovate, 2-10 cm. long, undulate: spikes 2-8 cm. long: calyx 

 about 10 mm. long, the lobes minutely hooked: corolla white or purplish; 

 lobes oblong to euneate, mucronate: utricle invested by the hardened calyx. — 

 Hammocks, Key West. — {Bah., Cuha, Ant.) — Leadwort. 



Ci> Family 2. PRIMULACEAE. Primrose Family. 



Herbs, various in habit. Leaves alternate, opposite, or whorled, 

 sometimes all basal : blades entire, toothed, or rarely dissected. Flowers 

 perfect. Calyx of 4—9 partially united sepals, commonly persistent. 

 Corolla of 4-9 partially united petals, or rarely wanting. Androecium 

 of as many stamens as there are sepals and alternate with them, some- 

 times with staminodia. Gynoecium a single pistil, with a central placentae : 

 style single. Fruit a 1-celled, 2-8-valved capsule. 



Corolla exceeding the calyx : ovary partly inferior. 



Staminodia present : corolla-lobes longer than the tube. 1. Samolds. 



Staminodia wanting : corolla-lobes shorter than the tube. 2. Samodia. 



Corolla not exceeding the calyx : ovary superior. 3. Centunculus. 



1. SAMOLUS [Tourn.] L. Caulesceut herbs. Leaves alternate: blades 



entire. Flowers in simple or branched, sessile or nearly sessile racemes. 



Calyx perigynous: lobes 5. Corolla perigynous: lobes 5, with staminodia at 



the sinuses. Stamens 5: filaments very short, adnate to the base of the very 



short corolla-tube. Ovary and capsule i inferior. 



^.■- 1. S. floribundus H.B.K. Plants glabrous, 1-6 dm. tall: leaf -blades spatulate 

 to oval or ovate, nearly 3-15 cm. long: sepals ovate or triangular-ovate, barely 

 1 mm. long, acute: corolla white, 3 mm. wide; lobes oblong: capsules 2.5-3 

 mm. in diameter. — Hammocks, U. keys. — [E. K.] — (Bah., Cuha.) — Water- 

 pimpernel. Brookweed. 



i ' ; : 2. SAMODIA Baudo. Caulescent herbs, of low grounds. Leaves alter- 

 nate: blades entire. Flowers in simple or branched long-peduncled racemes. 

 Calyx perigynous: lobes 5. Corolla white or pink, perigynous, without stami- 

 nodia: lobes 5. Stamens 5: filaments adnate to above the middle of the 

 relatively long corolla-tube. Ovary and capsules i inferior. 



¥ 1. S. ebracteata (H.B.K.) Baudo. Plant 1-3 dm. tall: leaf-blades spatulate 

 or obovate, 3-10 cm. long, obtuse or apiculate: corolla 6-7 mm. wide; lobes 

 more or less retuse at the apex. [Samolus ehracteatus H.B.K.] — Low pine- 

 lands and palmlands, L. keys. — [E. K.] — {Bah., Cuba.) 



3. CENTUNCULUS L. Annual small herbs of low grounds. Leaves 

 alternate, or some of the lower ones opposite: blades thickish. Corolla incon- 



