VEKBENACEAE. 129 



2. PHYLA Lour. Herbs. Leaf -blades toothed or lobed. Flowers in 

 congested axillary spikes, the bracts cuneate to flabeUate. Calyx flattened, 

 2-lobed. Corolla 2-lipped: tube scarcely exceeding the calyx. FROG-FRUIT. 



1. P. nodiflora (L.) Greene. Plants soft-strigillose, with creeping branches 2-13 

 dm. long: leaf -blades spatulate, 1-3 cm. long: spikes 10-30 mm. long: calyx 

 about 2 mm. long: corolla about 2 mm. long: fruits about 1 mm. long. 

 Hammocks and low sandy places, L. keys. [E. K.] (Ber., Bah., Cuba, Ant.) 



3. PEIVA Adans. Perennial herbs. Leaf -blades thin, toothed. Flowers 

 in elongate slender spikes or racemes. Calyx 5-lobed. Corolla white or colored, 

 often pale, salverform, slightly 2-lipped. Stamens 4. Staminodia minute or 

 obsolete. Xutlets tuberculate or spiny. 



1. P. lappulacea (L.) Pers. Stems 2-6 dm. tall, pubescent: leaf -blades ovate, 

 2-10 cm. long, serrate: racemes loose-flowered: calyx with minute lobes: 

 corolla-lobes rounded: fruit ovoid-pyramidal, included, the nutlets 3-4 mm. 

 long, spiny-tuberculate. [P. echinata Juss.] Hammocks and cultivated 

 grounds, Key West. (Bah., Cuba, Ant.) VELVET-BUR. 



4. VALERIANOIDES Boerh. Herbs, or shrubby plants. Leaf-blades 

 toothed. Flowers sessile on a stout rachis or in excavations. Calyx often 

 unequally 5-lobed, scarcely accrescent. Corolla white or colored, salverform, 

 slightly 2-lipped. Stamens 2. Staminodia 2. 



1. V. jamaicensis (L.) Kuntze. Plants with spreading branches, 6-15 dm. 

 long: leaf -blades oblong, ovate, or oval, 2-8 cm. long: spikes virgate, quill- 

 like: corolla blue, 8-11 mm. long; limb 7-8.5 mm. wide. Pinelands and coastal 

 sand-dunes, and waste places, U. S. keys, U. keys, L. keys, L. S. keys. [E. K.] 

 (Ber., Bah., Cuba, Ant.) 



5. LANTANA L. Shrubs or rarely herbs, sometimes prickle-armed. 

 Leaf-blades toothed. Flowers in congested, flat-topped spikes. Calyx shal- 

 lowly 2-5-lobed, or truncate. Corolla white or colored: tube slightly curved: 

 limb irregular. Stamens 4. 



Flower-heads involucrate : corolla mainly white. 



Outer bracts of the Involucre ovate. 1. L. involucrata. 



Outer bracts of the Involucre lanceolate or oblong-lanceolate. 2. L. odorata. 

 Flower-heads bracted, but not involucrate : corolla yellow, orange 



or reddish. 3. L. ovatifolia. 



1. L. involucrata L. Shrub 4-17 dm. tall, with puberulent or tomentulose 

 foliage: leaf -blades oval, obovate, or suborbicular, 1-3 cm. long, usually 

 cuneate at the base: outer bracts of the involucre 4-7 mm. long, ciliolate: 

 calyx becoming 1.5 mm. long: corolla white or pale-purple; tube 2-4 mm. long; 

 limb 2-4 mm. high. Hammocks and sand-dunes, U. S. keys, U. keys, L. keys, 

 L. S. keys. [E. K.] (Bah., Cuba, Ant.) 



2. L. odorata L. Similar to L. involucrata in habit: leaves similar but com- 

 monly larger : bracts of the involucre narrower, the outer lanceolate or oblong- 

 lanceolate: flowers often smaller. Hammocks, U. S. keys, L. keys. [E. K.] 

 (Ber., Bah., Cuba, Ant.) 



3. L. ovatifolia Britton. Diffusely branched erect shrub, mostly 1-1.5 in. tall, 

 rough-pubescent: leaf-blades ovate to oblong-ovate, thick, 2-7 cm. long, obtuse 

 or acute, shallowly crenate or crenate-serrate, rough-pubescent and rugose, 

 usually broadly cuneate at the base : spikes solitary or several together, showy : 

 bracts linear to linear-lanceolate : calyx campanulate, about 3 mm. long, 2-lobed, 

 the lobes ciliolate: corolla yellow or yellow-red, 10-15 mm. long; tube pubes- 



Flora of Florida Keys 9. 



