CuPHEA. LYTHRACE^. 483 



umbellately S-several-flowered at tlio summit : jiedicels slender, not brac- 

 teolate. 



D. vcrlidllatum (Ell. 1. c.) — D. aqiiaticus, Gmel. I. c. Lyilirum verlicil- 

 latum, Linn.! spec. 1. p. 446; Michx.! Jl. I. p. 281; Pursh! jl. l.p. 334; 

 Torr.! Jl. 1. p. 471. Anonynios aquatica, Walt. Car. p. 137. Nesa;a ver- 

 ticillata, H. B. Sf K. nov. gen. G. j'- li^l- 



a. pubcscens: stem and lower surface of the leaves more or less tomen- 

 tose-puhescent. 



p. l^vigalum: glabrous; leaves bright pjccn. 



Marsliy places, Canada! and throughout the United States! the smooth 

 variety occurring in the Northern, and tlie pubescent fomi in the Southern 

 States. July-Sept. — Stems 3-8 feet in length, 4-G-sidcd, often prostrate 

 and rooting at tlie summit. Leaves 3-5 inches long, acute at the l)asp, gradu- 

 ally attenuate and acute at the summit ; those of the branches often oi)posite, 

 sometimes scattered. Flowers rather large, showy. 



5. CUPHEA. Jacq. hort. Vindob. 2. p. 83 ; DC. prodr. 3. p. 83. 



Calyx tubular or ventricose, gibbous or sometimes spurred at the base on 

 the upper side, with 6 erect teeth, and usually as many accessory processes. 

 Petals 6-7, unequal. Stamens 11-14, rarely 6-7, unequal. Ovary with a 

 gland at the base next the gibbosity of tlie calyx : style filiform : stigma some- 

 what capitate or 2-lobed. Capsule membranaceous, 1-2-celled. Seeds seve- 

 ral, mostly large, orbicular, compressed, wingless. — Herbs or suffruticose 

 plants, with opposite or rarely verticillate entire leaves. Peduncles axillary 

 or between tlie petioles, mostly 1-flowered. Calyx colored. Petals violet 

 or white. 



.i-^l. C. viscosissima (Jacq.): herbaceous, annual, viscid-pubescent ; stem 

 erect, branching ; leaves ovate-lanceolate, on slender petioles, scabrous ; calyx 

 1 2-ribbed, ventricose, gibbous at the base, very viscid ; petals (violet) ungui- 

 culate; stamens 12; seeds few. — Jacq. I. c. t. 177; Michx.! jl. 1. p. 281; 

 Nutt. gen. l.p. 304; DC! prodr. 3. p. 85; Bart. Jl. N. Amer. 1. t. 18; 

 Darlingt.! Jl. Cest. p. 284. Lythrum petiolatum, Linn.! spec. 1. p. 446. 

 L. Cuphea, Linn.f. suppl. p. 249. 



Fields, Pennsylvania ! to Georgia ! and Arkansas ! extending to Brazil. 

 July-Sept. — Stem a foot or more high. Capsule, with the csdyx, opening 

 longitudinally before the seeds are ripe. 



Order LIV. RHIZOPHORACEiE. R. Br. 



Sepals united into a 4-13.1obed calyx : aestivation valvate or ca- 

 lyptriform. Petals inserted on the calyx, alternate with its lobes, 

 and equal to them in number. Stamens inserted with the petals, 

 twice or several times as many : filaments distinct : anthers erect, 

 straight or incurved. Ovary coherent with the tube of the calyx, 

 2-celled, or 1-celled with a central columella: ovules 2 in each cell, 

 or several when 1-celled, pendulous. Fruit indehiscent, l-celled. 

 Seed pendulous, solitary : albumen none. Radicle long : cotyledons 



