220 NORTH AMERICAN FLORA [Volume 25 



Amyris ? bipinnataHC. Prodr. 2 : 82 (1825), is Elaphrium bipinnatwm (DC.) Schlecht. 



Amyris copallifera Oliva, Naturaleza 1 : 40 (1869), is Elaphrium copalliferum DC. 



Amyris fagaroides (H.B.K.) Spreng. Syst.4 : Cur. Post. 148 (1827), is Elaphrium faga- 

 roides H.B.K. 



Amyris? hexandra Hamilt. Prodr. 34 (1825), is Dacryodes hexandra (Hamilt.) Griseb. 



. Imyris Hypelate A. Robinson ; Lunan, Hort. Jam. 1 : 149 (1814), is (?) Hypelate tri- 

 foliata Sw. 



Amyris jorullensis (H.B.K.) Spreng. Syst. 4: Cur. Post. 148 (1827), is Elaphrium 

 jo nil le use H.B.K. 



Amyris lanuginosa (H.B.K.) Spreng. Syst. 4: Cur. Post. 149 (1827), is Elaphrium 

 lanuginosum H.B.K. 



Amyris Linaloe Llave, Reg. Trim. 1 : 356. 1832. Burseraceae. 



Amyris Lunani Spreng. Syst. 2 : 217. 1825. 



Amyris penicillata (DC.) Spreng. Syst. 2 : 219 (1825), is Elaphrium penicillatum 

 DC. 



Amyris Philippaea A. Robinson ; Lunan, Hort. Jam. 1 : 150 (1814), is (?) Hypelate tri- 

 foliata Sw. 



Amyris RobinsoniiDQ. Prodr. 2 : 82 (1825), is (?) Hypelate trifoliata Sw. 



Amyris Tecomaca Moc. &Sesse' ; DC. Prodr. 2 : 82. 1825. Burseraceae (?). 



Amyris toxifera L. Syst. ed. 10. 1000 (17 59), is Metopium toxiferwn (L. ) Krug & 

 Urban. 



Amyris ventricosa Llave, Reg. Trim. 1 : 355. 1832. Burseraceae. 



24. STAURANTHUS Liebm. Vidensk. Meddel. 1853: 91. 1853. 



Trees with alternate, unifoliolate, pellucid-glandular leaves. Flowers in short, few- 

 flowered, axillary racemes. Calyx small, 4- or 5-dentate, persistent. Petals 4 or 5, in- 

 serted on the receptacle. Stamens 4 or 5, inserted on the receptacle below the ovary ; 

 filaments short ; anthers small. Ovary sessile, 1-celled ; stigma sessile, disk-shaped, some- 

 what 4- or 5-lobed. Ovule solitary, pendulous from the apex of the cell. Drupe somewhat 

 fleshy. Seed with a broad hilum, hanging from the side of the cell ; testa coriaceous. 

 Cotyledons oblong to elliptic ; radicle superior. 



Type species, Stauranthus perforatus Liebm. 



1. Stauranthus perforatus Liebm. Vidensk. Meddel. 1853 : 92. 1853. 



Zanthoxylum Ghisbrcghlii Turcz. Bull. Soc. Nat. Mosc. 32 1 : 274. 1859. 



A glabrous tree with gra5'ish or grayish-brown twigs ; leaves lanceolate to broadly 

 oblong-elliptic, sometimes oblanceolate, 7-12 cm. long, 1.7-5.4 cm. broad, acuminate and 

 sometimes notched at the apex, cuneate at the base, above lustrous, beneath coarsely and 

 strongly reticulate-veined, the midrib prominent ; racemes about 2-3.5 cm. long ; flowers 

 small, greenish; calyx-teeth deltoid, acute, petals lanceolate to oblong-elliptic, 2.8-3 mm 

 long, 1.5-1.7 mm. broad, acute, the margins more or less in flexed ; ovary ovoid, minutely 

 tuberculate ; drupe ovoid, tuberculate. 



Type locality : In woods near Dos Puentes between Totutla and Huatusco, Vera Cruz. 



Distribution : Southeastern Mexico. 



25. CHALCAS L. Mant. 11, 68. 1767. 



Murraea Koenig; L. Mant. 554, 563. 1771. 

 Camunium (Rumpf) Kuntze, Rev. Gen. 99. 1891. 



Unarmed shrubs or small trees. Leaves alternate, odd-pinnate. Leaflets alternate or 

 s ubopposite. Flowers solitary, or several in terminal or axillary cymes. Calyx 5-fid (some- 

 times 4-fid) or 5-parted. Petals 4 or 5, imbricate or valvate. Stamens 8-10, inserted on 

 the disk ; filaments linear-ligulate, narrowed toward the apex ; anthers small. Gynophore 

 present or obsolete. Ovary 2-5-celled ; style long, deciduous ; stigma capitate ; ovules 

 solitary or 2 in each cell, superposed or collateral. Fruit a 1-2-celled or 5-celled berry. 

 Seeds 1-several ; testa woolly or glabrous ; cotyledons plano-convex. 



Type species, Chalcas paniculata L. 



