PLANT LIFE IN OKLAHOMA. 51 



BLADDERNUT FAMILY — (Staphjleaceae) . — The true bladder- 

 nut is represented by only one species in our State, the American bladder- 

 nut found in woods and thickets in the northeast comer of the State. 



MAPLE FAMILY — (Aceraceae). — Several species found growing 

 chiefly in the eastern part of the State, also many varieti^ in cultivation. 

 (See list of trees and shrubs following). 



SOAPBEREY YAMlLY—i-Sapindaceae) .—This family is repre- 

 sented by the chinaberry or soap berry tree, and three or four species of 

 the buckeye. 



POR-GET-ME-lSrOT FAMILY— (BaZsamtnacme).— This family is 

 represented only by the spotted or wild touch-me-not, sometimes called 

 silver leaf, found in moist places in the eastern part of the State. 



BUCKTHORN FAMILY— (Rhamnaceae) .—This family includes 

 chapparel (eondilia), supple jack (rattan vine), Carolina buckhorn, and 

 New Jersey Tea or redroot. 



GRAPE FAMILY — (Vitaceae) .-This family includes the Virginia 

 creeper, which is common throughout the State; the false grapes, pepper 

 vine, and several species of wild grapes. 



LINDEN FAMILY— (TiZtaeeae).— This family includes the bass- 

 wood or linden tree of which there is but one species growing native in 

 the State. 



MALLOW FAMILY — (IMmceae).— Includes the Indian mallow, 

 false mallow, running mallow, poppy mallows (6), and rose mallows (3). 



SAINT JOHN'S-WORT FAMILY— {Hypencacect&).— This family 

 includes St. Andrews' cross and the St. John's^wort of which there are 

 several species, found chiefly in the eastern part of the State. 



ROCK-ROSE FAMILY— (Cwiaceae). —This family includes the 

 frost weeds and the pin weeds, found growing in dry, sandy places in 

 the eastern two-thirds of the State, and also in the vicinty of the Wichita 

 and Arbuckle mountains. 



VIOLET FAMILY — (Violaceae) .—There are about 20 species of 

 violets known in the State. Some of these are widely distributed, but 

 are chiefly found in the eastern part of the State. 



passion' FLOWER FAMILY— (Passifloraceae).— This family is 

 represented by 2 species found in the eastern part of the State. 



LOASA FAMILY — (Loasaceae). — Consisting of small, much 

 branched herbs with rough surfaces and with barbed stinging hairs, found 

 on sandy hill sides and prairies throughout the State. 



CACTUiS FAMILY- (Cactoceae).— This family is represented by 

 the hedgehog, pin cushion, cacti, and the prickly pears. 



LOOSESTRIFE FAMILY— (Lyihraceae). —This family includes 

 the water purslane, tooth cups, loosestrifes and wax-weeds. 



MEADOW BEAUTY FAMILY— (Melasiomaceae). —Includes the 

 meadow beauties found growing in sandy, swampy places in the eastern 

 part of the State. 



