68 ANACAUDIACK^. (cASIIF.W FAMILY.) 



inserted under an orbicular or annular disk at the bottom of the calyx, 

 mostly valvatc in the bud. Stamens twice as many as the petals, and in- 

 serted with them . anthers introrse. Ovules anatropous, pendulous, 

 mostly two in each cell. Stigmas 1-5. Fruit drupaceous, dry; the peri- 

 carp often splitting into valves. Albumen none, lladicle superior. 



1. BURSERA, Jacquin. 



F|pwers polygamous. Sterile Fl. Calyx .3 - 5-partC(l. Petals 3-5, valvate 

 in tlie bud. Stamens 6- 10. Disk crenulatc. Fertile Fl. Calyx 3-parted. 

 Petals 3. Stamens 6. Ovary ovate, 3-cclled. Style short : stigma 3-lobcd. 

 Drupe oblong, 1-sccdcd ; the pericarp 3-vaIved. Cotyledons wrinkled. 



1 . B. gummifera, Jacquin. Leaves alternate, 3 - 9-foliolate, long-peti- 

 olcd, deciduous ; leaflets stalked, opposite, ovate, acuminate, entire, rounded or 

 slightly cordate at the base, at length smootli on both sides ; flowci-s small, 

 whitish, in axillary racemes ; drupe purplish. — South Tlorida. — A large tree. 



2. AMYRIS, L. ToRcn-WooD. 



Flowers perfect. Calyx 4-partcd. Petals 4, narrowed at the base, imbricated 

 in the bud. Stamens 8, shorter than the petals, liypogynous. Ovary 1-celled. 

 Stigma capitate. Dnipe globose, 1-sceded. Cotyledons plano-convex. — Trees 

 or shrubs. Leaves 3 - 7-foliolate, opposite, with glandular pellucid dots. Flow- 

 ers paniclcd, wliite. 



1. A. Floridana, Nutt. Smooth ; leaves petiolcd, trifoliolate ; leaflets 

 ovate, obtuse, entire, on slender stalks ; branches of the panicle o])])osite ; drupe, 

 like tlie (lowers, dotted. — South Florida. — A .slirub or small tree. Leaves 

 1 ' - 1^' long, sliining above. Flowers yellowish-white. 



OuDKU 37. ANACARDIACEyT:. (Casiikw Family.) 



Trees or shrubs, with milky or resinous juice, altt'rnato exstipulate dot- 

 less leavi's, and perfect or polygamous regular llowers. — Sepals and 

 petals 4 - .'), imbricated in the bud. Stamens as many as the petals, or 

 twice as many, and inserted with them into the base of I in- calyx. Ovary 

 solitary, with a single ovule ascending from the base of the cell. Style 

 simple or ;3-e!efl. Fruit drupaceous. Seeds without albumen, lladicle 

 curved. 



1. RHUS, L. Sumach. 



Calyx ."i-prirli (1. Petals .'), inserted with the .'> stamens on the disk which sur- 

 rounds the b:is(> of the ovary. Stigmas 3. Drupe dry. Ibulieic superior, in- 

 curved. — Shnibs or small trees. Leaves pinnate or trirolioiate. rarely simple. 

 Flowers small, greenish, in spikes or panicles. 



