CYRILLACEAE. 61 



2 mm. long: drui^es subglobose, about 5 mm. l)roa(l, in drooping panicles. 

 — Spr. 



The Poison-sumac grows in swamps in northern Florida. Tlie yellow and 

 brown-streaked heart-wood is coarse-grained, light, and soft. Also known as 

 Thunderwood. (Cont.) 



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

 foliolate. Flowers polygamous or dioecious, borne in terminal usually compact 

 panicles. Sepals commonly 5. Petals commonly 5. Ovary pubescent. Style 

 short. Drupe pubescent. Seed smooth and even. — Spr. 



Bark dark gray or gray-brown, dull : leaflets mostly 7-11. 1. R. copallina. 



Bark red, shining : leaflets mostly 13-33. 2. B. leucantha. 



1. R. copallina L. Tree becoming 10 m. tall or a tall shrub, the bark thick, 

 hard, scaly: leaflets 9-21: blades oblong to oblong-lanceolate or sometimes 

 oval, 3-10 cm. long: stone of the drupe 2. .5-3 mm. long. 



The Sumac grows in open woods or thickets in northern Florida and in the 

 upper part of the peninsula. The brown and green-streaked heart-wood is coarse- 

 grained, light, and soft. (Cont.) 



2. R. leucantha Jacq. Tree becoming 9 m. tall, the bark thin, soft, smooth, 

 peeling, or shrub: leaflets 1.5-33; blades narrowly oblong to linear-lanceolate, 

 3—9 cm. long: stone of the drupe about 3 mm. long. 



The SouTHERX-suMAC grows in hammocks on the Everglade Keys. The brown- 

 ish-white and green-streaked heart-wood is rather close-grained, light, and soft. 

 (Cuba.) 



Family 2. CYRILLACEAE. Titi Family. 



Shrubs or trees. Leaves alternate : blades simple, entire. Flowers 

 perfect, racemose. Calyx of mostly 5 sepals. Corolla of mostly 5 petals. 

 Androecium of 5-10 stamens. Gynoecium of 2-5 united car^iels. Fruit 

 dehiscent or indehiscent. 



Racemes lateral : sepals 5. equal : petals contorted, acute : stamens 5 : ovary 2-celIed : 

 ovules 2-3 : fruit dehiscent, not winged. 1. Cykilla. 



Racemes terminal : sepals 5-8, unequal : petals imbricated, obtuse : 



stamens 10 : ovary 3-4-celled : ovule 1 : fruit indehiscent, winged. 2. Cliftonia. 



1. CYRILLA Garden, Shrubs or trees, with pale close bark. Sepals 

 nearly equal. Petals clawless. Stamens equal: filaments winged. Style short. 

 Fruit erect or ascending. 



1. C. racemiflora L. Tree becoming 10 m. tall or shrub: leaf -blades oblanceo- 

 late to obovate or nearly oblong, 2-10 cm. long: racemes mostly over 8 cm. 

 long: sepals acuminate: petals 2.5-3 mm. long: filaments over 2 mm. long: 

 capsules ovoid, about 2.5 mm. long. — Spr. 



The Leatiierwood grows in swamps and ponds in the pinelands in northern 

 Florida. The brown and red-tinged heart-wood is close-grained, heavy, and hard, 

 but weak. Also known as Titi. (Cont.) 



2. CLIFTONIA Gaertn. Shrubs or trees, with dark scaly bark. Sepals 

 unequal. Petals clawed. Stamens unequal: filaments appendaged below. 

 Style wanting. Fruit drooping. 



1, C. monophylla (Lam.) Britton. Small tree becoming 8 m. tall or shrub: 

 leaf -blades narrowly elliptic to elliptic-oblanceolate, 4-6 cm. long: racemes 

 2-6 cm. long: petals 3-3.5 mm. long: fruit ovoid, 6-7 mm. long. — Winter 

 & spr. 



The Titi grows in pineland swamps and bays in northern Florida. The brown 

 and red-tinged heart-wood is close-grained, heavy, and rather hard, but weak. (Cont.) 



