BURSERACEAE. 211 



to triangular-ovate, ciliolate; petals oblong to ovate, 4-6 mm. long; drupe oval, 

 14-20 mm. long, scarlet to dark-purple. 



Coppices, Abaco, Great Bahama, Andros, and New Providence : Florida ; Cuba ; 

 Hispaniola ; Jamaica ; Mexico to Panama. PARADISE-TREE. 



3. ALVARADOA Liebm. Kjob. Vidensk. Meddel. 1853: 100. 1854. 



Shrubs or small trees, with alternate, unequally pinnate leaves clustered 

 near the ends of the slender branches, the leaflets small and numerous, the 

 small dioecious flowers in narrow, spreading or drooping racemes. Sepals 5, 

 short, slightly united at the base. Petals none. Stamens 5, exserted; filaments 

 filiform, pubescent; anthers short. Ovary sessile, 2-3-celled; ovules 2 in each 

 cavity; styles 2 or 3, recurved; stigmas very small. Fruit a 2-3-winged 

 samara. [Commemorates Petro de Alvarado, a Mexican explorer.] Five or 

 six species, of Florida, the West Indies, Central and South America, the fol- 

 lowing typical. 



1. Alvaradoa amorphoides Liebm. Kjob. Vidensk. Meddel. 1853: 100. 1854. 



A shrub or small tree up to 10 m. high, the twigs puberulent. Leaves 1-2 

 dm. long, the rachis very slender and flexible; leaflets 19-51, thin, 0.5-2.5 cm. 

 long, the lower orbicular to obovate, the upper ovate to oblong, all rounded or 

 retuse at the apex, dark-green and glabrous above, finely appressed-pubescent 

 beneath, the petiolules short; sepals ovate to ovate-orbicular, 1.5-2 mm. long, 

 obtuse or acutish; samaras lanceolate or oblong-lanceolate, 11.5 cm. long, nar- 

 rowed to the 



Scrub-lands, coppices and pine-lands, Andros, New Providence, Great Exuma 

 and Cat Island : Florida ; Cuba ; Mexico. ALVARADOA. 



Family 9. BURSERACEAE Kunth. 

 GUMBO-LIMBO FAMILY. 



Shrubs or trees, mostly resiniferous or aromatic, with alternate, mostly 

 pinnate, deciduous leaves, and small regular perfect or polygamo-dioe- 

 cious flowers, usually panicled. Sepals 3-5, somewhat united below. Petals 

 as many as the sepals and alternating with them. Stamens twice as many 

 as the petals; filaments distinct, short; anthers 2-celled. Ovary superior, 

 mostly 3-5-celled; ovules normally 2 in each cavity, pendulous; style 

 usually very short; stigma broad. Fruit drupaceous. Seed-coat mem- 

 branous; endosperm none. About 20 genera and over 300 species, mostly 

 of tropical distribution. 



1. ELAPHRIUM Jacq. Enum. 3. 1760. 

 [TEREBINTHUS P. Br. Hist. Jam. 345. 1756. Not Miller 1754.] 



Leaves various, compound or simple. Inflorescence axillary. Flowers 

 polygamo-dioecious. Calyx 4-5-lobed, .the lobes spreading. Petals 4 or 5, ovate 

 to oblong, much larger than the calyx-lobes, imbricated in the bud, inserted at 

 the base of the disk. Stamens 8 or 10, distinct, inserted with the petals. Disk 

 an entire ring. Ovary sessile, 3-celled. Fruit a globose or 3-angled drupe, the 



