72 ORDER SO. ANACAUD1ACEJS. 



S Leaves abruptly pinnate. Flowers dioecious. Styles united. Fruit baccate SIHIRVHA. I 



Leaves odd-pinnate. Flowers polygamous. Styles distinct. Fruit a samara AILANTHCS. 1 



1. SIMARUBA, Aubl. QUASSIA. (Its name in Guiana ) 5 5 



S. glanca DC. Leaflets 48, alternate, entire, obtuse, coriaceous. S. Fla. Tree, 40f. 



2. AILANTHUS, Desf. CHINESE " TREE-OF-HEAVEN." (Ailanto, its 

 name in China.) $ S $ Sep. 5. Pet. 5. 5 Stain. 23. Ov. 35. Sty. 

 lateral. Fr. 1-celled, 1-seeded samarae, with oblong margins. $ Stam. 10. 



5 Ovaries, styles, and samarae as in $ . 5t) Oriental; with odd-pinuato 

 leaves. Flowers in panicles. 

 4. GLANDULdsus Desf. Lfts. glabrous, 21 41, ovate or oblong-lanceolate, acuminate, 



with 1 or 2 obtuse, glandular teeth each side at base, terminal one long-petiolate. 



Parks, <fcc. 40 60f. Flowers greenish, ill-scented. June. 



ORDER XXXV. BURSERACE^E. BURSERIDS. 



Trees and shrubs abounding in balsam or resin, with exstipulate, com- 

 pound, dotted leaves, and small, regular, racemed or panicled flowers. 

 Calyx 3-5-cleft. Petals 3 5. Stamens twice as many. Ovaries free, 1-5- 

 celled. Stigmas 2-5-lobed, ovules 2 in each cell. Fruit drupaceous, inde- 

 hiscent, rarely capsular. Seeds pendulous, exalbuminous. 



1 Flowers perfect, 4-parted. Stamens 8, hypogynous. Leaves opposite AMYRIS. I 



Flowers polygamous, 4 and 6-parted. Stamens 8 10; disk cren ate. Leaves alternate BURSERA. 2 



1. AMYRIS, L. BALM-OF-GILEAD. (Mvppa, myrrh; from its per- 

 fumed gum.) 5 5 Flowers in panicles, white. 



A. FIorlda.na X. Torch-wood. Shrub ; Ivs. opposite, trifoliate, on short petioles 

 Ifts. ovate, obtuse, entire, petiolulate ; drupes email, globular. E. Fla. 



2. BURSERA, L. (To Joachin Burser, an Italian botanist.) J> 



B. gummifera Jacq. Lfts. 3 9, petiolulate, ovate, acnm., entire ; fls. racemed. Fla 



ORDER XXXVI. ANACARDIACE^E. SUMACS. 



Trees or shrubs with a resinous, gummy, caustic, or even milky juice. 

 Leaves alternate, simple, or temate, or unequally pinnate, without pellucid 

 dots. Flowers with bracts, commonly direcious, small. Sepals 3 5, united 

 at base, persistent. Petals of the same number (sometimes 0), imbricated. 

 Stamens as many as petals, alternate with them, perigynous. Ovary 1- 

 celled, free. Ovule 1. Stigmas 3. Fruit a berry or drupe, usually the 

 latter, and 1-seeded. Albumen 0. 



RHUS, L. SUMAC. (The ancient name, from Celtic, rhudd, red V) 

 Calyx of 5 sepals united at base. Pet. 'and stam. 5. Sty. 3. Stig. capi- 

 tate. Fruit a small, 1-seeded, subglobous, diy drupe. Small trees or 

 shrubs. Leaves alternate, mostly compound. Flowers often, by abor 

 tion. imperfect, greenish. 



