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stock. Leaves alternate, stipulate, long-petioled, suborbicular 
in outline, cordate at the base, palmatipartite or palmatifid ; 
segments or lobes serrate (leaves rarely trilobed with crenulate 
lobes); mesophyll marked, especially on the lower surface, with 
irregular brownish dots and dashes due to the presence of resin- 
cells; stipules subulate, conspicuous. Flowers large, arranged 
in a terminal raceme, sometimes in both terminal and axillary 
racemes. Sepals 5, oblong-lanceolate, tardily deciduous. Petals 5, 
obovate, yellow, orange or reddish, contorted in the bud. Stamens 
numerous, in two sets on opposite sides of the flower, one with 
long and the other with shorter filaments; filaments filiform ; 
anthers linear, basifixed, dithecous, opening by two short 
terminal slits or pores (rarely by a single terminal pore). Ovary 
subglobose, finely and densely pubescent, trilocular, placentation 
axile; style undivided, stigma punctiform; ovules numerous, 
biseriate, ee or seas ropous.— Boi large, 
thick, im, smooth, liskzoue and crustaceous inner layer, 
perforated by a well-marked chalazal orifice. Hmbryo large, 
more or less curved; cotyledons large and thin; albumen fleshy, 
oleaginous Species 6-7, natives of the south-western United 
States (Arizona and S wW. Texas), Mexico (Sonora, Sinaloa, 
Chihuahua, Coahuila, Nuevo Leon, Tamaulipas, Vera Cruz), 
Colombia (Tolima) and Bolivia (Santa Cruz). 
Type species : 4. palmatifida, Moc. et Sessé. 
KEY TO THE SPECIES. 
Leaves 3-lobed, lobes crenulate; anther = 2 a single 
terminal pore unvpora. 
Leaves 5-9-lobed, jane erinte sixther opening oe two short 
terminal slits or pores : 
Seeds not reniform ; arillode loosely fitting ee linear : 
Seeds globose ; arillode pilose - 1. Gonzalezir. 
Seeds oblong-obovoid, flattened on one side ag profile ; 
- 2. Wrighti. 
arillode glabrous 
Seeds reniform ; arillode aloecly appressed rhaphe very 
bi 
roa 
Leaves very shortly lobed, lobes subtruncate; seed 
broadly reniform with a wide. shallow sinus ; arillode 
shortly setulose * aah malvaefolia. 
Leaves very deeply er: 
Seeds with a wide pine sinus ; unis sey 
and rather densely pilos colombia 
ge with a narrow deep * sinus ; incite sparingly 
tulose 
Imperfectly ore species - - - 6. Schiedeana. 
