MACLOSKIE I MALVACEAE. 569 



KEY TO THE GENERA. 



In all these the carpels are arranged in a circle, and the staminal column is antheriferous at 

 the top. 

 A. Style branches as many as the carpels. 



b. Carpels each many-seeded, at least 2-seeded. 



c. Involucel none. i. Abutilon, p. 569. 



c2. Involucel 3-leaved. 2. Spharalcea, p. 570. 



b2. Carpels i -seeded. 



c. Seeds erect. Involucel of 13 distinct bracteoles or none. 



d. Stigma linear, on inner side of the style-branches. Carpels not beaked. 



3. Malva, p. 571. 



d2. Stigmas capitate, terminating the style-branches, which are often thickened above. 

 Carpels beaked. 4. Malvastrum, p. 572. 



cz. Seeds pendulous, with dorsal raphe. Involucel none. 



d. Style-branches slender or thickened upwards, stigmatic on inside. Carpels fewer 

 than 5. 5. Plagianthus, p. 572. 



d2. Style branches capitate, apically stigmatic. 



e. Carpels not winged, 5 <x. 6. Sida, p. 572. 



e2. Carpels with 2 lateral wings. 7. Cristaria, p. 575. 



AA. Style-branches twice as many as the carpels. Involucel of 5 oo bracteoles. Carpels spiny 

 or tubercled on the surface, 1-3 -rostrate. Hypophyl not glandular. 



8. Pavonia, p. 577. 



i. ABUTILON Gaertn. 



Chiefly herbs or shrubs, with cordate leaves and axillary flowers. In- 

 volucels none. Calyx 5-cleft. Staminal column antheriferous at apex. 

 Ovary of 5-many carpels, each with several reniform ovules, falling away 

 at maturity. 



Species 90, in warm countries, some cultivated for their beauty. 



i. A. BICOLOR Phil. 



Fruticose. Leaves small, fasciculate, white underneath, lamina scarcely 

 exceeding the petiole, 3-parted, the midlobe 3-lobed, the lateral lobes 

 entire or 2-lobed. Pedimcles solitary in the axil, exceeding the leaves. 

 Calyx tomentose-white, broad funnel-form with short, triangular teeth. 

 Corolla broad-funnel form, its petals thrice as long as the calyx, violaceous 

 at base, sulphurous above. 



(Chilian Andes at 4,000 meters) ; Patagon., at Chonkenk-aike by Rio 

 Chico, etc. ; by Lago Argentine. 



(These have subpinnately lobed leaves with short-petioles ; fruit cupu- 

 late, scarcely accrescent. Speg.) 



