RUTACE^E. XL. BRUCEA. XLI. BRUNELLIA. XLII. ZANTHOXYLUM. 



801 



2 B. GRA'CILIS (D. C. prod. 2. p. 88.) leaflets serrated, downy 

 on both surfaces ; racemes simple, spike-like. Tj . S. Native 

 of the East Indies. Ailantus gracilis, Salisb. prod. 171. Sta- 

 mens 5-6. Ovaries stiped. 



Slender Brucea. Fl. May, June. Clt. ? Shrub. 



3 B. SUMATRA'NA (Roxb. fl. ind. 1. p. 469.) leaflets serrated, 

 villous beneath ; racemes usually compound ; petals longer than 

 the calyx. Jj . S. Native of Sumatra, Moluccas, China, and 

 Cochin-china. Gonus amarissimus, Lour. 658. B. Sumatrensis, 

 Spreng. pug. 2. p. 90. Rumph. amb. 7. t. 15. Flowers dark- 

 purple, usually hermaphrodite. From the sensible qualities of 

 the green parts of this plant being somewhat fetid, and simply, 

 though intensely, bitter, it promises to be as good an antidysen- 

 terical medicine as Bruce's Woodginoos. (Wall.) 



Sumatra Brucea. Fl. May, June. Clt. 1822. Tree 20 ft. 



4 B. GUINEE'NSIS ; leaflets quite entire ? and smooth ; spikes 

 panicled, branched ; petals much longer than the calyx, ij . S, 

 Native of Sierra Leone, in the woods. 



Guinea Brucea. Fl. Feb. May. Tree 14 feet. 



Cult. These trees will thrive best in a loamy soil. Cuttings 

 from ripened wood strike root freely in a pot of sand under a 

 hand-glass, in a moderate heat. 



XLI. BRUNE'LLIA (in honour of Gabriel Brunelli, professor 

 of botany in the university of Bologna). Ruiz et Pav. fl. per. 

 prod. p. 71. t. 12. H. et B. pi. equin. 1. p. 210. H. B. et Kunth, 

 nov. gen. amer. 7. p. 42. D. C. prod. 2. p. 87. Andr. Juss. in 

 mem. mus. 12. p. 501. 



LIN. SYST. Dioecia, Octo-Decandria. Flowers of separate 

 sexes. Calyx 4-5-parted, clothed on the inside at the base, 

 with a hairy depressed disk, which is 8-10-lobed. Petals want- 

 ing. Male flowers. Stamens 8-10, longer than the calyx, in- 

 serted in the sides of the disk, which bears the abortive ovaries. 

 Female flowers. Stamens inserted in the disk, much shorter 

 than the calyx ; anthers barren. Ovaries equal in number with 

 the segments of the calyx, distinct, hairy, each ending in a 

 short acute style. Carpels distinct, opening lengthwise in- 

 wardly, each containing 1-2 seeds. Seeds egg-shaped or globose. 

 Embryo straight. Unarmed, rarely prickly trees. Leaves sim- 

 ple, ternate, or impari-pinnate, coriaceous, entire or crenated, 

 without dots. Stipulas twin, small, caducous, petiolar. Flowers 

 disposed in axillary or terminal corymbs, or panicles ; pedicels 

 furnished with bracteas. Parts usually clothed with rusty down. 

 There are sometimes 7 segments to the calyx. 



" Leaves opposite, pinnate. 



1 B. ACULEA'TA (Ruiz et Pav. ^frT'per. syst. p. 127.) leaves 

 abruptly-pinnate ; leaflets quite entire ; carpels smooth ; branches 

 prickly. t? . S. Native of Peru, in groves. Stamens 10-14. 



Prickly-branched Brunellia. Tree. 



2 B. COMOCLADIFOLIA (Humb. et Bonpl. pi. equin. 1. p. 211. 

 t. 59.) leaves impari-pinnate, with 7 or 11 pairs of spiny-ser- 

 rated leaflets ; carpels 4, clothed with rufous down. Pj . S. Na- 

 tive of Peru, on the Andes, near Popayan. Stamens pro- 

 bably 8. 



Comocladia-leaved Brunellia. Tree. 



3 B. PROPI'NQUA (H. B. et Kunth, nov. gen. amer. 7. p. 45.) 

 leaves impari-pinnate ; leaflets 3 or 4 pairs, oblong, rather ob- 

 tuse, crenately-serrulated, clothed beneath with fine rufescent 

 down ; panicle branched, rusty. Tj . S. Native of South Ame- 

 rica. Stamens 12-14. Compare it with the following. 



Allied Brunellia. Tree 20 feet. 



4 B. iNE'RMis(Ruiz et Pav. fl. per. prod. p. 71.) leaves impari- 

 pinnate, and simple ; leaflets serrated ; carpels hispid. Jj . S. 

 Native of Peru, in groves. Stamens 10-14. This is probably 

 the same as B. propinqua. 



VOL. I. 



Unarmed Brunellia. Tree. 



* Leaves simple, 3 in a whorl. 



5 B. TOMENTOSA (Humb. et Bonpl. pi. equin. 1. p. 214. t. 

 60.) leaves oval-oblong, acute at both ends, serrated, reticulated 

 with veins beneath ; branches and carpels downy. Tj . S. Na- 

 tive of South America, near Almaguer, in cold places. Stamens 

 8-14. 



Z>OKWJ/-branched Brunellia. Tree 20 feet. 



6 B. OVALIFOLIA (Humb. et Bonpl. pi. equin. 1. p. 216. t. 

 61.) leaves roundish-oval, serrated, clothed beneath with very 

 minute pubescence ; heads of flowers axillary, stalked. f? . S. 

 Native of South America, on Mount Saraguru, near Loxa. Sta- 

 mens 10. 



Oval-leaved Brunellia. Tree 20 feet. 



7 B. ACUTA'NGULA (Humb. et Bonpl. pi. equin. 1. p. 216. t. 

 62.) leaves oval-lanceolate, covered with powdery-pubescence 

 beneath ; branches acutely triquetrous. J? . S. Native of New 

 Granada. Stamens 8-10. 



Sharp-angled-stemmed Brunellia. Tree 20 feet. 



N. B. There are several unpublished species of this genus 

 from the Sandwich Islands. 



Cult. See Brucea for cultivation and propagation. 



XLII. ZANTHO'XYLUM (from a$oe, xanthos, yellow, 

 and u\oi', xylon, wood ; the roots are yellow). H. B. et Kunth, 

 nov. gen. amer. 6. p. 1. D. C. prod. 1. p. 725. Andr. Juss. in 

 mem. mus. 12. p. 503. t. 25. no. 38. Zanthoxylum et Fagara, 

 Lin. gen. no. 150. and 1109.- Xanthoxylum, Smith. Aubertia, 

 Bory. Langsdorfia, Leandr. in akad. munch. 1819. p. 229. 

 Pohlana, Nees et Mart. nov. act. bonn. xi. p. 185. Ochroxy- 

 lum, Schreb. Pterota, Adans. Kampmannia, Rafin.- Am- 

 pacus, Rumph. Evodia, spec. D. C. prod. 1. p. 724. 



LIN. SYST. Dioecia, Tri-Penldndria. Flowers dioecious. 

 Calyx short, 3-4-5-parted. Petals equal in number to the lobes 

 of the calyx, but longer, very rarely wanting. Male flowers. 

 Stamens equal in number with the petals, equal in length or longer 

 than them, inserted around the base of a rudiment of a gynophore, 

 bearing the rudiment of a simple or multiple pistil, which is 

 shorter than the stamens. Female flowers. Stamens sometimes 

 wanting, or very short, scale-like, and without anthers, or bearing 

 abortive ones. Ovaries 5-1, sometimes equal in number to the 

 petals, but usually fewer from abortion, seated on a subglobose, 

 or subcylindrical torus, each containing 2 ovulae, and with one 

 style rising from the apex of each, free, or connected ; the for- 

 mer with separate capitate stigmas ; the latter crowned with a 

 single lobed stigma. Capsules 1-5, sessile, or stalked, 2-valved, 

 1-2-seeded. Seeds globose, dark, shining. Embryo straight, 

 but usually a little incurved. Trees or shrubs, with the petioles, 

 branches, and nerves, usually furnished with prickles. Leaves 

 alternate and opposite, simple or ternate, but usually abruptly 

 or impari-pinnate, and with the common petiole usually winged, 

 for the most part full of pellucid dots. Flowers small, greenish, 

 or whitish, axillary or terminal, fascicled, spiked, racemose, 

 cymose, corymbose, or panicled, furnished with bracteas. 



SECT. I. ZANTHO'XYLUM (see genus). Golden, Lin. Juss. et 

 Schreb. Xanthoxylum species, Nees et Mart. Fagara, Adans. 

 but not of Lin. Calyx of 5 petal-like sepals, bearded at the 

 apex. Petals wanting. Male flowers. Stamens equal in num- 

 ber to the petals, and alternating with them, inserted around the 

 rudiment of a 5-lobed disk. Female flowers. Ovaries equal in 

 number to the sepals, and opposite them, seated on a cylindrical 

 torus, each furnished with a style, which are connected together 

 5 K 



