84 CELASTEACEAE. 



2. METOPIUM P. Br. Shrubs or trees. Leaf-blades pinnately com- 

 pound. Flowers dioecious, in open panicles. Sepals 5. Petals 5. Ovary 

 equilateral: styles united: stigmas 3-lobed. Drupe not oblique. 



1. M. toxiferum (L.) Krug & Urban. Shrub, or tree becoming 14 m. tall, 

 with a very poisonous sap: leaflets 3-7; blades ovate, leathery, 3-9 cm. long: 

 panicles 1-2 dm. long: sepals reniform or suborbicular : petals oblong to ovate: 

 drupes 10-15 mm. long. Hammocks and coastal sand-dunes, U. S. keys, U. 

 keys, L. keys. [E. K.] (Bah., Cuba, Ant.) POISOXWOOD. CORAL-SUMAC. 

 HOG-GUM. DOCTOR-GUM. 



3. TOXICODENDRON [Tourn.] Mill. Shrubs, trees, or vines, with poi- 

 sonous sap. Leaf-blades pinnately compound. Flowers polygamous or dioe- 

 cious, in rather dense panicles. Sepals 4-6. Petals 4-6. Ovary glabrous: 

 styles short. Drupe mostly glabrous, the sarcocarp wax-secreting. Seeds ribbed. 



1. T. radicans (L.) Kuntze. Shrub with pubescent twigs: blades of the 

 leaflets leathery, ovate to oblong-ovate, 3-5 cm. long: drupes 2.5-3 mm. in 

 diameter. Hammocks, L. keys. [E. K.] (Ber., Bah.) POISON-OAK. Poisox- 



IVT. 



FAMILY 2. CELASTRACEAE. STAFF-TREE FAMILY. 



Shrubs, trees, or vines. Leaves alternate, opposite, or whorled : blades 

 simple. Flowers perfect, polygamous, or dioecious, variously borne. 

 Calyx of 3-5 sepals. Corolla of 3-5 petals. Androecium of 3-5 stamens 

 borne on or below the disk. Gynoecium of 2-5 united carpels. Fruit a 

 capsule, a drupe, or a berry. Seed often arillate. 



Fruit capsular, dehiscent. 1. MAYTEXCS. 

 Fruit drupaceous, indehiscent. 



Flowers perfect : ovary 4-celled. 2. RHACOMA. 

 Flowers dioecious : ovary 2-celled. 



Leaves opposite: ovules pendulous. 3. GYMINDA. 



Leaves alternate : ovules erect. 4. SCHAEFFERIA. 



1. MAYTENTJS Molina. Shrubs or trees. Leaves alternate, persistent: 

 blades leathery or succulent, entire or toothed. Flowers polygamous or 

 dioecious, solitary or clustered. Sepals 5. Petals 5. Stamens 5, borne below 

 the disk. Capsules erect. 



1. M. phyllanthoides Benth. Shrub or small tree: leaf -blades succulent, 

 obovate to oblong-oblanceolate, 24 cm. long: hypanthium broadly turbinate: 

 corolla 2-3 mm. broad: capsules obovoid, 8-12 mm. in diameter, red. Coastal 

 sand-dunes and hammocks, U. keys, L. keys, L. S. keys. [E. K.] (Cuba.) 



2. RHACOMA L. Shrubs or small trees. Leaves alternate, opposite, or 

 whorled, persistent: blades entire or toothed. Flowers perfect, solitary or 

 clustered in the axils. Sepals 4 or 5. Petals 4 or 5. Stamens 4 or 5, borne 

 between the lobes of the disk. Drupe smooth. [Crossopetalum P. Br.] 



Leaf -blades spiny-toothed: cymes short-stalked (3-5 mm.) 1. R. ilicifolia. 



Leaf-blades crenate or entire: cymes long-stalked (10-15 mm.). 2. R. Crossopetalum. 



1. R. ilicifolia (Poir.) Trelease. Depressed shrub with pubescent twigs: 

 drupes 34 mm. long. Pinelands, L. keys. [E. K.] 



2. R. Crossopetalum L. Erect shrub or small tree with glabrous twigs : drupes 

 5-6 mm. long. [Crossopetalum austrinum Gardner.] Coastal sand-dunes and 

 hammocks, U. S. keys, U. keys, L. keys. [E. K.~\(Ber., Bah., Cuba, Ant.) 



