130 LAMIACEAE. 



cent, slightly enlarged below the middle; limb spreading, the upper lip reni- 

 form, the lower lip 3-lobed, the middle lobe reniform: drupes black, subglobose, 

 about 5 mm. in diameter.— Hammocks and coastal sand-dunes, U. S. keys. — 

 [E. K.]—(Ba]i.) 



6. CITHAHEXYLUM L. Shrubs or trees, sometimes spiny. Leaf -blades 

 mainly entire. Flowers in clusters or long spikes. Calyx obscurely 5-lobed. 

 Corolla mainly white: tube straight or nearly so: limb slightly oblique, nearly 

 equally 5-lobed. Staminodia present. Drupe rather dry. 



1. C. fruticosum L. Shrub or small tree, with softly pubescent twigs: leaves 

 5-15 cm. long; blades elliptic, oblong, or oblong-obovate, veiny: flowers in 

 spikes or racemes: fruit 9-10 mm. long. [C. vUlosum Chapm. Not Jacq.] 

 — Hammocks, L. keys. — [E. K.] — (Bah., Cnha, Ant.) — Fiddlewood. 



7. DURANTA L. Shrubs or trees, often spine-armed. leaf-blades entire 

 or toothed. Flowers in racemes. Calyx more or less prominently, but minutely 

 5-lobed. Corolla salverf orm or f unnelf orm : tube mainly curved : limb slightly 

 unequally 5-lobed. Staminodia mostly obsolete. Stigma 4-lobed. Nutlets 4. 



1. D. repens L. Shrub or small tree: leaf -blades ovate-elliptic, oval or obo- 

 vate, 1.5-5 cm. long: racemes 5-15 cm. long, recurving: calyx 3-4 mm. long, 

 angled: corolla lilac; limb 7-9 mm. wide, the lobes ciliolate: fruits 7-11 mm. 

 in diameter, enclosed in the calyx. — Hammocks, Key West. — {Ber., Bah., Cuba, 

 Ant. ) — Golden -DE WDROP. 



Family 8. AVICENNIACEAE. Black-mangrove Family. 



Shrubs or trees of maritime regions, the branches terete, nodose. 

 Leaves opposite, persistent : blades entire. Flowers in axillary small 

 cymes. Calyx of 5 nearly distinct sepals. Corolla of 4 partially united 

 petals, campanulate-rotate. Androecium of 4 stamens, the filaments adnata 

 to the lower part of the corolla-tube. Gynoecium of 2 united carpels. 

 Fruit a compressed oblique capsule. 



1. AVICENNIA L. Leaf-blades thick. Cymes peduncled. Calyx sub- 

 tended by small bracts. Corolla inconspicuous, the tube and spreading lobes 

 about equal in length. Stamens erect. Stigmas 2. Capsule thick-walled. 



1. A. nitida Jacq. Shrub, or tree sometimes 25 m. tall: leaf -blades leathery, 

 oblong or nearly so, 3-8 cm. long, dark-green above, pale beneath: calyx 3—4 

 mm. long: corolla white; lobes longer than the tube: fruits oblong or elliptic, 

 3-5 cm. long, acutish. — Coastal hammocks and shores, U. S. keys, U. keys, L. 

 keys, L. S. keys. — [E. K.] — (Ber., Bah., Cuba, A7it.) — Black-mangrove. 



Family 9. LAMIACEAE. Mint Family. 



Herbs or woody plants, often atomatic. Stems 4-sided. Leaves 

 opposite or -vvhorled : blades simple, entire, toothed, or lobed. Flowers 

 perfect, in open or compact cymes. Calyx of 5 partially united sepals, 

 regular or 2-lii3i:)ed. Corolla of 5 partially united sepals, 2-lipped or 

 nearly regular. Androecium of 2-4 stamens, the pairs often irregular. 

 Gynoecium 2-carpellaiy. Ovary 4-celled. Fruit of 4 nutlets included in 

 the calyx. 



Gynoecium with 4 united carpels ; ovary 4-lobed : style not basal : nutlets laterally 



attached. 1. Trichostema. 



Gynoecium with 4 distinct, or nearly distinct, carpels : style 

 basal : nutlets basally attached. 



