CHENOPODEJ!. 50 



3. MICROTEA, Sw. 



Calyx 5-partite. Petals 0. Stamens 5 (-8), nearly hypogynous, alternating with the 

 calyx. Ovary unilocular: ovule single, basilar; styles 2 (-5). Achenium scrobiculate, mu- 

 ricate. Embryo annular, encircling the perisperai. — Annual herbs ; leaves exstipulate ; ra- 

 cemes or spikes lateral ; flowers small, tribracteate. 



4. M. debilis, Sw. Flowers racemose : pedicels as long as the flower ; inferior bract 

 f^/V- ■ subulate ; calyx-segments ovate, exceeded twice or more by the achenium. —Lam. III. 1. 182; 



Sw. Fl. 1. 10 : analyt. — A delicate, diffuse herb, l'-lV high ; leaves ovate, tapering towards 

 the petiole ; calyx $'"-%'" long, greenish-white. — Hab. S. Kitts, Dominica !, Imr. ; S. Vin- 

 cent !, Guild. ; Trinidad !, Lockh., Cr.; [Panama! to Peru!, equatorial Brazil ! and Guiana!]. 



4. EIVINA, L. 



Calyx 4-partite. Petals 0. Stamens 4-12, nearly hypogynous. Carpel solitary : ovule 

 single, basilar ; style short, oblique, or none. Achenium somewhat baccate, or dry. Embryo 

 annular, encircling the perisperm. — Shrubs ; leaves stipulate ; racemes terminal and lateral. 



Sect. 1. Piekcea. — Stamens 4, alternate with the calyx : anthers ovate, introrse. Style 

 with a capitate stigma. — Pedicels with a deciduous bract at the base. 



5. It. lsevis, L. Erect ; leaves ovate, pointed ; calyx-divisions oblong or obovate, blunt, 

 oppressed to the fruit. — Bot. Mag. t. 2333. — A shrub, 6'-8' high, with herbaceous, delicate 



f.4/A> branches; flowers small, reddish-white; berry globose, red, at length dry. — Linnaeus distin- 

 * guishes two species, which are mere varieties : 



a. Glabrous. 



£. pubescens. Branches and leaves pubescent. — R. humilis, L. R. purpurascens, Schrad. 

 Hab. Jamaica!, Dist., Alex., March {a); Caribbean Islands ! ; Trinidad!, Schach, Cr.{&) ; 

 [Florida !, Texas !, Cuba ! to Brazil !, Mexico ! to Ecuador !]. 



Sect. 2. Yillamilla. — Stamens 8-12 : stamens sagittate, extrorse. Stigma sessile, 

 penicillate. — Pedicels with a bract above the base. 



6. It. octandra, L. Subscandent ; leaves elliptical or elliptical-lanceolate, pointleted, 

 glabrous ; calyx-divisions ovate, rounded, at length reflexed : veins reticulated. — Br. Jam. t. 

 23. f. 2. — Trichostigma rivinokies, Rich. Cub. — A trailing shrub, 15'-20' high; racemes 

 lax, usually exceeding the leaves ; flowers larger than in the preceding, whitish ; berry pur- 

 plish-black. — Hab. Jamaica !, Pd., Alex., March ; S. Vincent !, Guild. ; [Cuba ! to Vene- 

 zuela !, New Granada !, Peru !]. 



5. PETIVERIA, L. 



Calyx 4-partite. Petals 0. Stamens 4-6-8, nearly perigynous : anthers sagittate. Car- ' 

 pel solitary : ovule single, basilar ; stigma sessile, penicillate, lateral. Achenium terminated 

 with 2-4 bristles. Embryo straight : albumen obsolete, lateral. — Suffrutescent herbs ; leaves 

 stipulate ; spikes terminal, interrupted, elongated ; flowers tribracteate. 



7. P. alliacea, L. Leaves elliptical or oblong, pointed ; spikes slender ; stamens 6-8 ; 

 fruit with 2 bristles.— Jacq. Amer. Pict. i. 104 ; Desc. Fl. 5. I. 374.— Stem 2'-3' high-; 

 leaves glabrous ; spikes often 8"-12"long : axis puberulous ; calyx whitish, 2"' long : divisions 

 linear, blunt. The whole plant has an alliaceous smell. — Hab. Jamaica !, Alex. ; S. Kitts !, 

 Els. ; S, Vincent !, Guild.; Trinidad!, Lockh.; [Southern United States, Cuba!, and Mex- 

 ico ! to Rio Grande do Sul !]. 



XXII. CHENOPODE.E. 



[Basellacese. Batidea:.] 



Flowers apetalous. Stamens nearly perigynous, opposite to the herbaceous calyx. Ovary 

 mostly unilocular : ovule single, basilar ; styles usually 2 (-3-5). Embryo excentrical : peri- 

 sperm central, mealy, rarely wanting. — Leaves simple, exstipulate. 



