BYTTNERIACE.E. (BYTTNERIA FAMILY.) 53 



13. GOSSYPIUM, L. COTTON-PLANT. 



Involucels 3-leaved, united at the base, incisely lobed and toothed. Calyx 

 cup shaped, 5-toothed. Stigmas 3-5. Capsule 3-5-celled, few- or many- 

 seeded. Seeds woolly. Herbs or shrubs, with palmately lobed leaves, and 

 axillary yellow flowers. 



1. G- hirsutum, L. Frutescent, hirsute; leaves 3-lobed, or entire, a 

 linear gland on the midrib beneath ; flowers 3' wide ; leaves of the involucel 

 cordate, 8-10-cleft, with narrow bristle-pointed lobes; capsule 3-4-celled ; 

 few-seeded. Thickets along the coast and Keys of South Florida. Shrub 

 6 -12 high. 



14. FUGOSIA, Juss. 



Involucel 6-9-leaved. Column of stamens naked above. Stigmas 3 or 4, 

 separate or united. Capsule 3- or 4-celled, 3- or 4-valved, few- or many- 

 seeded. Seeds woolly. Shrubby tropical plants, with solitary axillary yel- 

 low flowers. 



1 . P. heterophylla, Vent. Smooth, erect ; stem angular, branching ; 

 leaves lanceolate, obovate, or 3-lobed, 3 nerved ; peduncles long, dilated under 

 the flower ; leaves of the involucel minute, subulate ; calyx dotted with black, 

 the acute sepals 3-ribbed, much shorter than the showy petals; stigmas 3, 

 united; capsule 3-celled, 12 - 20-seeded. Keys of South Florida. Stem 

 12'- 18' high. Corolla l^'-2' wide. 



ORDER 18. BYTTNERIACE^E. (BYTTXERIA FAMILY.) 



Chiefly trees or shrubs differing from Malvaceae in having definite 

 stamens, of which those opposite the petals are usually sterile, 2-celled 

 anthers, with smooth pollen grains, and a straight embryo. Ovary 

 3 - 5-celled, rarely 1-celled. 



1. AYENIA, L. 



Involucel none. Calyx 5-parted. Petals on long capillary claws, connivent 

 over the stigma. Fertile stamens 5, alternating with 1-2 sterile ones, their 

 filaments united into a pedicellate cup. Style single. Stigma 5 angled. 

 Capsule 5-lobed, 5-celled, loculicidally 5-valved, the cells 1 -seeded. Low 

 shrubby plants, with minute axillary flowers. Capsule rough. Albumen 

 none. 



1. A. pusilla, L. Stems mostly simple, prostrate, downy; leaves (4" -8" 

 long) roundish or oblong, coarsely serrate ; peduncles solitary, reflexed in 

 fruit; capsule depressed, muricate. South Florida. ^ Stems 6' -12' 

 long. Flowers purple. 



2. WALTHERIA, L. 



Involucel 3-leaved, deciduous. Calyx 5-cleft. Petals 5, spatulate, convo- 

 lute in the bud. Stamens 5, united below. Ovary 1-celled, 2-ovuled. Style 

 single. Fitigma penicillate or tuberculate. Capsule 2-valved, 1 -seeded. Em- 



