264 MALVACEAE. 



Involucre none. 



Carpels leathery or chartaceous. 2. Ahutilon. 



Carpels membranous, bladdery. 3. Gayoides. 



Carpels only 1 -seeded. 



Flowers with an involucre. 4. Malvastrum. 



Flowers without an involucre. 



Carpels separating at maturity. 5. Sida. 



Carpels permanently united. 0. Uusturdia. 



Carpels half as many as the stigmas. 

 Carpels dry, achene-like. 



Carpels with a dorsal spine. 7. Pavonia. 



Carpels not spined. 8. Malache. 



Carpels fleshy, the fruit drupe-like. 9. Malvaviscus. 



Fruit a loculicidal capsule, or rarely indehiscent. 

 Styles distinct. 



Herbs and shrubs ; capsule without false partitions. 



Calyx 5-toothed or 5-cleft. 10. Hibiscus. 



Calyx spathaceous. 11. Abclmoschus. 



Tree ; capsule with false partitions. 12. Pariti. 



Styles united. 



Bractlets of the involucre entire, small : fruit indehiscent. 13. Thespcsia. 



Bractlets of the involucre lacinate, large ; capsule loculicid- 



ally dehiscent. 14. Gossypium. 



1. PHYMOSIA Desv. in Hamilt. Prodr. 49. 1825. 



Herbs or shrubs. Bractlets 3, distinct, or united at the base. Stamen- 

 column anther-bearing at the summit. Cavities of the ovary 5-oo, 2-3-ovuled. 

 Style-branches the same number as the ovary-cavities, stigmatic at the apex; 

 carpels 2-valved, not septate between the seeds, separating from the axis at 

 maturity. Seeds reniform. [Greek, swollen, referring to the somewhat inflated 

 carpels of the following typical species.] About 40 species, natives of America 

 and South Africa. 



1. Phymosia abutiloides (L.) Desv. in Hamilt., Prodr. 50. 1825. 



Malva abutiloides L. Sp. PI. ed. 2, 971. 1763. 

 Sphaeralcea abutiloides G. Don, Gen. Hist. 1: 465. 1831. 

 Abutilon Eggersii E. Baker, Jour. Bot. 31: 75. 1893. 



An erect, sparingly branched shrub up to about 3 m. high, densely stellate- 

 tomentose. Leaves nearly orbicular in outline, the lower often 2 dm. broad, 

 sharply 5-7-lobed, the lobes serrate, acute or acuminate, the stout petioles 

 shorter than the blades; upper leaves much smaller; flowers corymbose in the 

 upper axils, or forming a terminal panicle ; involucel-bractlets linear, deciduous, 

 shorter than the calyx; calyx 5-toothed, its teeth triangular-ovate, acute; 

 petals pink or rose, white-veined, red-streaked at base, 1-1.5 cm. long; carpels 

 about 20, stellate-tomentose on the back, at length glabrous, reniform, obtuse, 

 1 cm. long; seeds black. 



Scrub-lands and coppices, Abaco, Great Bahama, New Providence, Eleuthera. 

 Endemic. Bahama Physiosia. Catesby, 1 : pi. 77. 



2. ABUTILON [Tourn.] Mill. Gard. Diet. Abr. Ed. 4. 1754. 



Herbs or shrubs, sometimes trees in tropical countries, mostly soft-pubes- 

 cent, with cordate angular or lobed leaves and axillary flowers. Involucels 

 none. Calyx 5-cleft. Cavities of the ovary 5- so, 3-9-ovuled. Style-branches 

 the same number as the ovary-cavities, stigmatic at the apex; carpels 2-valved, 

 often rostrate, falling away from the axis at maturity. Seeds reniform, the 

 upper ascending, the lower pendulous or horizontal. [Name given by the cele- 

 brated Arabian physician Avicenna (Ibn Sina), died 1037.] About 100 species, 

 natives of warm and tropical regions. Type species: Sida Abutilon L. 



