1915] 



BESSEY — PHYLOGEXETIC TAXONOMY 141 



solitary or few, usually large, centrally attached. (Species 

 about 1136.) 



Family 150. Sapotaceae. Sapodillas. Tropical trees and 

 shrubs with a milky juice, and mostly alternate leaves ; flowers 

 mostly perfect; sepals and petals 4-8 each; stamens in 2-3 

 whorls, attached to the corolla ; ovary superior, several-celled ; 

 endosperm from fleshy to 0. Achras, Sideroxylon, Chrysophyl- 

 lum, Mimusops. (Pf. 4 1 : 126.) 



Family 151. Ebenaceae. Ebonies. Tropical and subtropical 

 trees and shrubs, with very hard wood, and mostly alternate 

 leaves ; flowers mostly dioecious ; sepals and petals 3-7 each ; 

 stamens usually many and free from the corolla; ovary 3- 

 many-celled, superior ; endosperm copious. Diospyros, Maba. 

 (Pf. 4 1 :153.) 



Family 152. Symplocaceae. Tropical and subtropical trees 

 and shrubs, with mostly perfect flowers; sepals usually 

 petals usually 5; stamens many, attached to the base of the 

 corolla; ovary 2-5-celled, inferior; seeds few, endospermous. 

 Symplocos. (Pf. 4 1 :165.) 



Family 153. Styracaceae. Styraxes. Trees and shrubs of 

 warm climates with alternate leaves; flowers mostly perfect, 

 sepals and petals 5 each; stamens usually many, attached to 

 the base of the corolla; ovary 3-5-celled, usually inferior; 

 seeds few, endospermous. Halesia, Sty rax. (Pf. 4 1 : 172.) 



Family 154. Fouquieriaceae. Mexican shrubs with small 



leaves (becoming thorn-like), and panicled tubular flowers; 

 sepals 5; petals 5, united into a tube; stamens 10-15, free; 

 ovary tricarpellary ; placenta central; seeds few; endosperm 

 scanty. This small family is given place here with some con- 

 fidence that it is much more closely related to these families 

 than to those of the Caryophyllales and Polemoniales, with 

 which it has been associated. Fouquieria. (Pf. 3 6 : 298.) 



Order Ericales. Flowers regular, perfect, pentamerous or 

 tetramerous ; stamens alternate with the corolla-lobes, and as 

 many or twice as many; cells of the mostly superior ovary (or 

 placentae) 2 to many; seeds minute. (Species about 1730.) 



