112 AQUIFOLIACEAE. 



Leaf-blades simple: ovary on a swollen receptacle. 1. MAM-.IFERA. 

 Leaf-blades compound : ovary not on a swollen receptacle. 



Drupe somewhat elonpite, the coats permanently united. 2. METOI-ICM. 

 Drupe depressed, the coats ultimately separating. 



Drupe with a glabrous outer coat: stone ribbed. 3. ToxirnpKM<i:'>\. 



Drupe with a pubescent outer coat: stone smooth. I. Km s. 



1. MANGIFEBA L. Trees. Leaf-bla<U-s simj,li>. rrlativfly narrow. 

 Flowers polygamo-dioecious, in stiff panicles, the branches not pi; 

 Sepals 4 or 5. Petals 4 or 5. Ovary oblique: style 1, lateral. Drupe ovoid to 

 somewhat reniform. smooth: stone tenaciously fibrous-coat el. 



1. M. indica L. Leaf-blades leathery, oblong to linear-oblong or linear-lanceo- 

 late, mostly 1-3.5 dm. long, reticulate: panicles 1-4 dm. long: sepals ovate: 

 petals oblong or nearly so, 3.5-4 mm. long: drupes 5-10 cm. long, aromatic. 

 Hammocks. Nat. of the E. Indies, and cultivated. F. E. (Bah., Cuba, Ant.) 

 MANGO. 



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. toxifenim (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, and pinelands. 

 F. K. (Bah., Cuba, Ant.) POISONWOOD. COEAL-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. F. K. (Ber., Bah.) POISON-OAK. POISON IVY. 



4. EHTJS L. Shrubs or trees. Leaf-blades pinnately compound, several- 

 foliolate. Flowers polygamous or dioecious, borne in terminal usually roni]>:i< -t 

 panicles. Sepals commonly 5. Petals commonly 5. Ovary pubescent: styles 

 short. Drupe pubescent. Seed smooth and even. SUMAC. 



Rark of the trunk gray, dull : petals about 2.5 mm. long : anthers broadly oblong, 

 scarcely 1 mm. long. 1. R. obtmit folia. 



Bark of the trunk red. shining : petals about S mm. long : anthers 

 linear-oblong, fully 1 mm. long. 2. It. Itvcantho. 



1. E. obtusifolia Small. Shrub: leaflets 17-21; blades ovate to oblong, 2-5 

 cm. long: petals about 2.5 mm. long: stone of the drupe 3.54 mm. long. 

 \8chmaltfia obtusifolia Small.] Pinelands. 



2. R. lencantha Jacq. Shrub or tree becoming 9 m. tall: leaflets 15-33; blades 

 narrowly oblong to linear-lanceolate, 3-9 cm. long: petals about 3 mm. long: 

 tone of the drape about 3 mm. long. Hammocks. (Cufta.) SOUTHERN- 

 SUMAC. 



FAMILY 2. AQUIFOLIACEAE. HOLLY FAMILY. 



Shrubs or trees. Leaves alternate: blades simple. Flowers perfect 

 or polygamous. Calyx of 4-6 persistent sepals. Corolla of 4-6 petals 

 which are often united at the base. Androecium of 4-6 stamens, flynoe- 

 cium of 4-8 united carpels. Fruit drupaceous. 



