50 MALVACEAE. (MALLOW FAMILY.) 



and hoary beneath, rough above, longer than the petioles ; involucel of 5 - 6 

 ovate leaves, which are slightly united at the base ; carpels obovate, awnless, 

 strongly reticulate. South Georgia (Leconte). Stem 4 -5 high. Leaves 

 1' long. Flowers large, pale red. 



2. P. racemosa, Swartz. Shrubby, tomentose, sparingly branched ; 

 leaves petioled, cordate-ovate, acuminate, slightly serrate, 3-nerved ; stipules 

 subulate, deciduous ; racemes terminal, leafless, few-flowered ; involucel 8- 

 leaved; petals twice as long as the calyx, convolute, " dull white tinged with 

 yellow"; stigmas sessile, " carpels unarmed." Miami and Key Biscayue 

 ( Garber, Curtiss). Stem 6- 8 high. 



3. P. spinifex, Willd. Shrubby, hirsute ; leaves long-petioled, oblong- 

 ovate or cordate, coarsely serrate ; flowers long-peduncled ; involucel 8-leaved, 

 longer than the calyx, shorter than the yellow corolla; carpels armed with 

 three stout retrorsely bearded spines. Charleston (Rev. Dr. Bachinan). 

 Mayport, Florida (Curtiss). Introduced. Stem 3 -5 high. Corolla 1' 

 wide. 



8. URENA, L. 



Involucel deeply 5-cleft. Calyx 5-parted. Petals oblique. Column short ; 

 anthers few, terminal. Stigmas 10, capitate, capsule separating into 5 bristly- 

 barbed 1 -seeded carpels. Branching shrubs. 



1. U. lobata, L. Stem stout, tomentose ; leaves roundish, slightly cor- 

 date, entire or obscurely 3-5-lobed, canescent beneath; flowers small, 

 axillary, and crowded in a terminal raceme ; leaves of the involucel 5-7, 

 subulate ; petals pale rose-color ; carpels densely bristly. Waste places. 

 Introduced. 



9. MALACHRA, L. 



Flowers capitate, surrounded by a 3 - 5-leaved involucre. Leaves of the 

 involucel 8- 12, linear or setaceous. Stigmas 10, capitate. Capsule separat- 

 ing into five 1 -seeded carpels. Herbs or shrubs, rough with rigid, often 

 stinging hairs. Flowers white or yellow. 



1. M. capitata, L. Bristly and tomentose in lines ; stem much branched ; 

 leaves cordate, obscurely Jobed and toothed ; peduncles single or 2-3 in a 

 cluster, axillary, 7-flowered ; involucre 3-leaved, cordate ; petals twice as 

 long as the calyx, yellow ; capsule glabrous. Key in Chuckolusky Bay, 

 South Florida (Curtiss). Stem 3- 5 high. 



10. KOSTELETZKYA, Presl. (HIBISCUS, L. in part.) 

 Capsule depressed, the cells 1 -seeded. Otherwise as in Hibiscus. 



1. K. Virginica, Presl. Rough-hairy; stem erect, stout, branching; 

 lower leaves ovate, cordate, serrate, mostly 3-lobed, the upper narrower and 

 usually entire ; flowers (purple) in terminal racemes. Var. ALTHE.KFOLIA. 

 Densely stellate-pubescent and somewhat hoary ; leaves all undivided, ovate 

 or ovate-lanceolate, acuminate, unequally toothed-serrate ; racemes dense- 

 flowered; capsule hirsute. Marshes, near the coast, the var. South Florida 

 July - August. 



