SPONDIACEAE. 63 



FAMILY 1. EMPETRACEAE. CROW-BERRY FAMILY. 



Shrubs, mostly resembling heaths. Leaves alternate or whorled, some- 

 times numerous and crowded. Flowers dioecious or rarely polygamous. 

 Calyx of 2 or 3 sepals. Corolla of 2 or 3 petals, or wanting. Androe- 

 cium of 2-4, mostly 3 stamens. Gynoecium of 2 several united^ carpels. 



1. CEBATIOLA Michx. Evergreen shrubs. Leaf-blades narrow, revo- 

 lute and thus almost tubular. Flowers 2 or 3 in an axil. Sepals 2. Petals 

 2. Stamens 2. Ovary 2-celled. Drupe with 2 nutlets. 



1. C. ericoides Michx. Shrub 3-15 dm. tall: leaves crowded and spreading, 

 8-12 mm. long: sepals about 1 mm. long: stamens exserted: drupes subglo- 

 bose, 4-6 mm. in diameter, yellow. 



Pinelands and inland sand-dunes, nearly throughout Fla., except the F. Keys. 

 (Cont.) 



FAMILY 2. SPONDIACEAE, SUMAC FAMILY. 

 Shrubs, trees, or vines, with milky, resinous, often acid or caustic sap. 

 Leaves alternate: blades simple or pinnately compound. Flowers monoe- 

 cious, dioecious, or polygamous. Calyx of 3-5 sepals. Corolla of 3-5 

 petals, larger than the sepals. Androecium of 3-6, or rarely more, stamens. 

 Gynoecium of 1, or of 3-5, more or less united carpels. Fruit a drupe or 

 a berry. 



Drupe somewhat elongate, the coats permanently united. 1. METOPIUM. 



Drupe depressed, the coats ultimately separating. 



Drupe with a glabrous outer coat : stone ribbed. 2. TOXICODENDRON. 



Drupe with a pubescent outer coat : stone smooth. 



Flowers polygamous, in terminal thyrsoid panicles ap- 

 pearing after the leaves. 3. RHUS. 

 Flowers polygamo-dioecious, in solitary or clustered 



spikes in the axils before the leaves. 4. SCHMALTZIA. 



1. METOPIUM P. Br. Shrubs or trees. Leaf-blades pinnate. Flowers 

 dioecious, in open panicles. Sepals 5. Petals 5. Ovary equilateral. Styles 

 united: stigma 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 leathery, ovate, 3-9 cm. long: 

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

 drupes 10-15 mm. long. POISONWOOD. DOCTOR-GUM. 



Hammocks and pinelands, E. Keys and F. Keys, and on coastal sand-dunes at 

 the lower end of the pen. (W. I.) Spr. or all year. 



2. TOXICODENDRON [Tourn.] Mill. Shrubs, trees, or vines, with 

 poisonous sap. Leaf-blades pinnately compound. Flowers polygamous or 

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

 Styles short. Drupe mostly glabrous, the sarcocarp wax-secreting. Seed 

 ribbed. 



Leaf-blades 3-foliolate : vines or low shrubs : panicles of fruits spreading. 

 Stems climbing : blades of the leaflets coarsely toothed or 



entire. 1. T. radicans. 



Stems erect : blades of the leaflets lobed. 2. T. Toxlcodendron. 



Leaf-blades 7-11-foliolate : tall shrub or tree : panicles of fruits 



drooping. 3. T. Vernlx. 



1. T. radicans (L.) Kuntze. Stems climbing: blades of the leaflets membranous, 

 ovate to ovate-lanceolate, 3-20 cm. long: sepals ovate, 1 mm. long: petals 

 oblong to oblong-ovate, 3-4 mm. long: drupes 3-6 mm. in diameter. POISON- 

 IVY. POISON-OAK. 



(Cont 



Woods, thickets, pinelands. hammocks, and fence-rows, nearly throughout Fla. 

 t.,W.I.) Spr. Includes the forms described as Rhus liodyettii and R. floritiana. 



