LiMOMA. AURANTIACE/E. 221 



1. AMYRIS. lAim.; DC. prodr. 2. p. SI. 



Sepals 4, united at the base. Petals 4, cuneiform or unguiculatc. Sta- 

 mens 8, shorter than the petals. Drupe 1-seeded : nucleus chartaceous. — 

 Flowers white. 



1. A. Floridana (Nutt.): leaves on very short petioles, 3-foliolate ; leaflets 

 ovate, pctiolulatc, oDtuse or sub-acurniiiate, stroni^ly reticulate-veined, the 

 margin mostly entire; flowers somewhat panicled; drupes subglobose, at- 

 tenuate at the base.— iV«//. .' in Sill. Jour. 5. p. 294; DC. prodr. 2. p. SI. 



East Florida, Mr. Ware. — A shrub. Flowers not seen. Petiolules of 

 the terminal leaflet a little longest. — A. toxilera, Catesb. Car. is wrongly 

 credited to the United States. 



Order XXXVI. AURANTIACEiE. Correa. 



Sepals united into a short 3-5-toothed urceolate or campanulate 

 marcescent calyx. Petals 3-5, broad at the base, slightly imbricated 

 in sestivation, inserted on the outside of a conspicuous hypogynous 

 disk. Stamens equal in number to, or some multiple of, the petals, in- 

 serted upon the disk in a single series : filaments flattened below, 

 sometimes distinct, sometimes monadelphous or polyadelphous : an- 

 thers innate or attached near the base, versatile, the connectivum 

 articulated with the filament. Ovary several-celled, composed of 

 several united carpels : style 1, cylindrical : stigma somewhat lobed, 

 thickish. Fruit (an orange) consisting of several (or by abortion of 

 1) membranaceous carpels, commonly filled with pulp, and surrounded 

 by a thickish indehiscent rind abounding in receptacles of volatile oil. 

 Seeds solitary or several, and attached to the inner angle of each car- 

 pel, usually pendulous, anatropous ; the raphe and chalaza usually very 

 distinctly marked : albumen none. Embryo straight ; the cotyledons 

 large and thick, fleshy, partly concealing the radicle : plumule usually- 

 conspicuous. — Trees or siirubs (tropical), often with axillary spines, 

 almost always glabrous, every part abounding in pellucid glands full of 

 volatile oil. Leaves alternate, coriaceous, exstipulate, usually com- 

 pound ; the petiole often dilated or winged : when apparently simple 

 the lamina is articulated with the petiole, showing that they are pin- 

 nate leaves reduced to the terminal leaflet. Flowers very odorous. 



1. LIMONIA. Linn.; Lam. ill. t. 353 ; IF. ^ Arn. prodr. Lid. Or. 1. p. 91. 



Flowers and carpels symmetrical, in a quaternary or quinary proportion. 

 Calyx 4-5-cleft. Petals 4-5. Stamens 8-10 : fdaments distinct, subulate : 

 anthers cordate-oblong. Torus elevated, forming a short stalk to the ovary. 

 Ovary obovate, 4-5-celled, glabrous, with 1-2 collateral pendulous ovules from 



