BURSERIACE.E. V. BURSERA. VI. MARIGNIA, VII. COLOPIIONIA. VIII. CANARIUM. 



Calyx small, 3-5-tootlied, with blunt teeth. Petals 3-5 (f. 18. 

 ft.), spreading, valvate in aestivation. Stamens 6-10 (f. 18. c.). 

 Disk annular, with usually 6-10 teeth (f. 18. </.). Ovary ovate, 

 3-5-angled, 3-5-seedecl. Style short, trifid at the apex. Drupe 

 oblong, covered by a 3-valved succulent rind (f. 18, e.}, con- 

 taining 3-5 nuts, 2 or 4 of which are abortive, the fertile one 

 is fleshy, and containing 1 seed or 1 nut. Seed baccate ac- 

 cording to Swartz, pendulous, without albumen. Cotyledons 

 leafy, corrugated, and plaited or 3-lobed, with a straight su- 

 perior radicle. American balsam-bearing trees, with impari-pin- 

 nate or simple leaves, and axillary and terminal racemes of flowers. 



1 B. GUMMIFERA (Jacq. amer. 94. t. 65. Lin. spec. 741.) 

 leaves deciduous, usually impari-pinnate ; leaflets ovate, acute, 

 membranous ; racemes axillary ; flowers hexandrous. Tj . S. 

 Native of the West Indies. Sloan, hist. t. 199. There are va- 

 rieties of this plant with simple, trifoliate, and impari-pinnate 

 leaves, with 5-9 leaflets. Nut not exactly trigonal, but rather 

 roundish, very like Pistachio,. The tree is common in all the 

 sugar islands of the West Indies. The bark is very thick, and 

 exudes a clear transparent resin, which soon hardens in the air, 

 and looks like the mastick of the shops ; but by incision it yields 

 a considerable quantity of a more fluid substance, which has 

 much the smell and appearance of turpentine, and may be 

 used for the same purposes. In the French islands it is called 

 Gommier blanc, and an infusion of the buds and young leaves 

 is recommended in disorders of the breast. 



I'tir. ft, polyplujlla (D. C. prod. 2. p. 78.) leaflets 11-13. 

 Native of the Bahama islands. Cat. carol. 1. t. 30. 



Gum-bearing Bursera. Clt. 1690. Tree 80 feet. 



2 B. SERRA'TA (Wall, ex Coleb. FIG. 18. 

 in Lin. trans, vol. 15. t. 4. f. 1.) 



s impari-pinnate, with .<! 

 pairs oi broad-lanceolate, bluntly- 

 acuminated, serrulated leaflets ; 

 petioles pubescent, as well as the 

 pedicels and young roots ; panicles 

 axillary, shorter than the leaves ; 

 flowers decandrous. Tj . S. Native 

 of the forests bordering on Ben- 

 gal. The timber is close-grained 

 and hard, and is much esteemed, 

 and used for furniture by the in- 

 habitants. It is as tough as oak, 

 and heavier. Its vernacular name 

 is Najor or Neyor. 



Serrated-leaved Bursera. Clt. 

 1818. Tree 70 feet. 



3 B. ACUMINA'TA (Willd. spec. 4. p. 1120.) leaves impari- 

 pinnate ; leaflets oblong, acute at the base, acuminated at the 

 apex ; racemes axillary. tj . S. Native of Caraccas, as well as 

 of Porto-Rico and St. Domingo. Flowers and fruit unknown. 

 This tree contains a concrete yellow essential oil. 



dcuminatcd-\eaved Bursera. Tree 60 feet. 



4 B. LEPTOPHL.E'OS (Mart. bot. zeit. July 1828.) trunk branched 

 at the base ^ bark shining, smooth, papyraceous, soluble ; leaves 

 impari-pinnate, and are, as well as the branches, pubescent ; leaf- 

 lets 5-7, oblong, acute ; lobed in front; racemes few-flowered, 

 lateral and axillary. J? . S. Native of Brazil. A tree full of 

 thin resinous juice. 



Thin-juiced Bursera. Tree 50 feet. 



5 B. SIMPLICIF&LIA (D. C. prod. 2. p. 79.) leaves simple, ob- 

 long-obovate, obtuse, somewhat emarginate, coriaceous ; racemes 

 terminal, somewhat corymbose ; nut exactly trigonal, with the 

 angles a little winged, f? . S. Cultivated in Jamaica. 



Simple-leaved Bursera. Tree. 



Cull. For culture and propagation see Boswellia, p. 81. 



VI. MARI'GNIA (meaning unknown.) Comm. ined. Kunth. 

 nov. gen. tereb. p. 19. D. C. prod. 2. p. 7.9. Dammara, Gaert. 

 fruct. 2. p. 100. t. 103. but not of Lam. nor Link. 



LIN. SYST. Dccandria, Monogynia. Flowers hermaphrodite. 

 Calyx 5-cleft, permanent, with acute lobes. Petals 5, twice as 

 long as the calyx, valvate in aestivation. Disk entire. Stamens 

 10, length of calyx. Ovary roundish, 5-celled. Stigma almost 

 sessile, somewhat 5-lobed. Drupe crowned by the stigma, con- 

 taining 1-5 1-seeded nuts, with the bark coriaceous, and perhaps 

 soluble; nuts covered with pulp. Seed pendulous, without 

 albumen. Cotyledons leafy, finely contortuplicate (Gaert.), but 

 flat in the immature seeds (Kunth.). Radicle superior Balsam- 

 iferous trees, with impari-pinnate leaves, and numerous coriace- 

 ous, variable leaflets. Racemes of flowers axillary and ter- 

 minal. 



1 M. OBTUSIFOLIA (D. C. prod. 2. p. 79.) leaflets obovate, 

 obtuse. J? . S. Native of the Mauritius, where it is called 

 Colophane Batard. Bursera obtusifolia, Lam. diet. 2. p. 768. 

 Dammara graveolens, Gaert. fruct. 1. c. Leaflets blunt, glaucous, 

 and shining above. 



Blunt-leaved Marignia. Tree 50 feet. 



2 M. ACUTIFOLIA (D. C. prod. 2. p. 79.) leaflets acute. J? . S. 

 Native of the Moluccas. Dammara nigra, Humph, amb. 2. p. 

 160. t. 52. 



Acute-leaved Marignia. Tree. 



Cult. For culture and propagation see Bosn'cllia,y. 81. 



VII. COLOPHO'NIA (called in the Isle of France Bols de 

 Colophone). Comm. ined. Kunth. gen. tereb. p. 20. D. C. prod. 

 2. p. 79. 



Lm. SYST. Hexandria, Monogynia. Calyx urceolar, bluntly 

 3-lobed. Petals 3, inserted under the disk, roundish-ovate, 

 imbricate in the bud. Stamens 6, one-half shorter than the 

 petals, equal in length to the calyx. Disk 6-lobed. Ovary ? 

 Resinous trees, with impari-pinnate, coriaceous, dotless leaves, 

 and panicles of unisexual flowers. 



1 C. MAURITIA NA (D. C. prod. 2. p. 79.) fj . S. Native of 

 the Mauritius. Bursera paniculata, Lam. diet. 2. p. 768. 

 Flowers purple. Fruit unknown. Leaflets 5-7, oval, acute, 

 entire, smooth. 



Mauritian Colophonia. Tree. 



Cult. For culture and propagation see Bosn'clUn, p. 81. 



VIII. CANA'RIUM (derived from its vernacular name 

 Citnari, in the Malay language). Lin. mant. 127. Ga;rt. fruct. 

 2. t. 102. Keen. ami. bot. 1. p. 360. Kunth. gen. tereb. p. 20. 

 D. C. prod. 2. p. 79. Pimela, Lour. fl. coch. p. 407. 



LIN. SYST. Polygamia, Dicecia. Flowers dioecious or poly- 

 gamous. Calyx urceolate, 3-toothed. Petals 3, concave, con- 

 nivent, imbricate in aestivation. Stamens 6, rarely 7-8, connate 

 at the base into a tube girding the ovary. Ovary ovate-globose, 

 3-celled, 2 of which are usually abortive. Style short, thick, 

 crowned by a trigonal stigma. Drupe baccate, containing a tri- 

 gonal 3-celled nut, each cell containing 1 pendulous seed, but 

 sometimes solitary from abortion, destitute of albumen. Coty- 

 ledons 2, each divided into 3 oblong, somewhat leafy lobes, 

 which are twisted in various ways. Indian trees, with impari- 

 pinnate leaves and stalked leaflets ; stipulas deciduous. Flowers 

 racemose orpanicled. 



SECT. I. CANA'RIA (see genus for derivation). D. C. prod. 2. 

 p. 79. Drupe containing a 1-celled nut when mature. 



1 C. COMMU'NE (Lin. mant. 127.) leaflets 7-9, on long stalks, 

 ovate-oblong, bluntly acuminated, quite entire, smooth ; stipulas 

 toothed or undivided ; panicle terminal ; flowers glomerate, 

 nearly sessile, bracteate ; stamens connate into a membranous 



