EPILOBIACEAE. 105 



1. C. pallens (Poir.) Griseb. A shrub, or tree becoming 9 m. tall, the bark 

 light-gray or nearly white, smooth or ultimately scaly, the branehlets 2-edged: 

 leaf-blades elliptic or oval, varying to broader above or below the middle, 3-5 

 cm. long, or rarely larger, mostly short-acuminate, pubescent beneath, at least 

 when young, manifestly petioled: inflorescence pubescent: hypanthium about 

 2 mm. wide in anthesis: calyx pubescent, less than 2 mm. in diameter: fruits 

 subglobose or oval, 5-7 mm. in diameter, pubescent: seeds about 4 mm. long. 

 —Hammocks, U. keys, L. keys.— [E. K.]—{BaTi., Cuba, ^wi.)— Spicewood. 



Family 6. RHIZOPHORACEAE. Mangrove Family. 



Shrubs or trees. Leaves usually opposite: blades entire or toothed. 

 Flowers perfect, solitai-y or variously clustered. Calyx of 3 or 4 valvate 

 sepals. Corolla of 3 or 4 thick petals. Androecium of twice or thrice as 

 many stamens as sepals, or of 4 times as many. Gynoecium of 2-5 united 

 carpels. Ovary inferior, at least partly so. Styles mostly united. Fruit 

 a leathery berry crowned with or surrounded by the calyx. 



1, RHIZOPHORA L. Evergreen trees. Leaf-blades leathery. Flowers 



2-several in peduncled clusters. Sepals 4, leathery. Petals 4, leathery. 



Stamens 4-12. Ovary 2-celled, produced into a fleshy cone at maturity. Fruit 



pendulous, the seed germinating and sending out a long radicle before the 



fruit falls. 



1. R. Mangle L. Shrub, or tree becoming 10 m. tall, forming impenetrable 

 thickets on salt or brackish shores: leaf -blades elliptic to elliptic-obovate, 5-15 

 cm. long: sepals lanceolate, about 10 mm. long: petals pale-yellow, linear or 

 nearly so: fruits 2-3 cm. long, the precocious radicle clavate. — Salt and brack- 

 ish shores and coastal hammocks, U. S. keys, U. keys, L. keys, L. S. keys. — 

 [E. K.] — {Ber., Bah., Cuba, Ant.) — Mangrove. 



Family 7. EPILOBIACEAE. Evening-primrose Family. 



Herbs or rarely shrubs. Leaves alternate or opposite : blades simple. 

 Flowers typically perfect. Hypanthium often elongate. Calyx of 2-6, 

 usually 4, sepals. Corolla of 2-9, usually 4, petals, or rarely wanting. 

 Androecium of as many stamens as the sepals or twice as many. Gynoe- 

 cium of several, usually 4, united carpels. Ovary 1-6-celled, usually 4- 

 celled, inferior. Fiiait capsular or nut-like. 



Fruit a many-seeded capsule. 



Hypanthium not prolonged beyond the ovary. 1. Ludwigia. 



Hypanthium prolonged beyond the ovary. 2. Raisiannia. 



Fruit nut-like, indehiscent. 3- Gauka. 



1. LUDWIGIA L. Annual or perennial herbs. Leaf-blades entire or 

 rarely shallowly toothed. Flowers axillary or terminal. Sepals generally per- 

 sistent. Petals usually 4. Ovary usually 4-celled. Capsule cylindric or pris- 

 matic to subglobose. 



1. L. microcarpa Michx. Plants low or depressed: leaf -blades spatulate or 

 obovate-spatulate, 0.5-3 cm. long: sepals triangular: petals wanting: capsules 

 broadly obpyramidal, 1.5-2 mm. long. — Hammocks and lime-sinks, L. keys. — 

 [E. K.]— (ia/i., Ant.) 



2. RAIMANNTA Eose. Annual, biennial, or perennial herbs. Leaf- 

 blades sinuate or pinnatifid. Flowers axillary, sometimes aggregated in a 



