46 Charles E. Bessey 



Family 90. Humiriaceae. Trees with alternate simple leaves ; 

 pistil 5- to 7-celled ; endosperm copious. Hiimiria, Saccoglottis. 

 (Pf. Ill, 4, 35-) 



Family 91. Erythroxylaceae. Shrubs and trees, with mostly 

 alternate, simple leaves; flowers pentamerous; stamens 10; ovary 

 2- to 3-carpellary. Erythroxylon. (Pf. Ill, 4, 37.) 



Family 92. Zygophyllaceae. Herbs and shrubs with usually 

 opposite, compound leaves ; pistil lobed, 4- to 5-celled ; endosperm 

 copious or o. Zygophyllum, Giiaiacum, Larrea. (Pf. Ill, 4, 74.) 



Family 93. Cneoraceae. Shrubs with alternate entire leaves, 

 trimerous or tetramerous flowers ; pistil 3- or 4-celled, each cell 

 with one ovule. Cneorum. (Pf. Ill, 4, 93.) 



Family 94. Rutaceae. Oranges. Herbs, shrubs, and trees 

 with glandular-dotted, opposite, simple, or compound leaves ; 

 pistil lobed, 4- to 5-celled; endosperm fleshy or o. Xanthoxylum, 

 Rata, Dictamnus, Ptelea, Limonia, Citrus. (Pf. HI, 4, 95.) 



Family 95. Simarubaceae. Trees and shrubs with generally 

 alternate, non-glandular, simple, or compound leaves ; pistil lobed, 

 I- to 5-celled; endosperm fleshy or o. Simaruba, Quassia, Hola- 

 cantha, Ailanthus. (Pf. Ill, 4, 202.) 



Family 96. Burseraceae. Balsamic trees and shrubs with al- 

 ternate compound leaves ; pistil 2- to 5-celled ; endosperm o. 

 Protium, Canarium, Burscra. (Pf. Ill, 4, 231.) 



Family 97. Meliaceae. Trees and shrubs with alternate com- 

 pound leaves ; pistil 3- to 5-celled ; endosperm present or o. 

 Szmetenia, Meliu. (Pf. HI, 4, 258.) 



Family 98. Malpighiaceae. Trees and shrubs with usually 

 opposite, simple or lobed leaves ; pistil tricarpellary ; endosperm 

 o. Stigmatophyllon, Malpighia, Byrsonima. (Pf. HI, 4, 41.) 



Family 99. Trigoniaceae. Trees and shrubs with opposite 

 simple leaves and irregular flowers ; pistil tricarpellary. Trigo- 

 nia. (Pf. HI, 4, 309.) 



Family 100. Vochysiaceae. Shrubs and trees with opposite or 



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