1915] 



BESSEY — PHYLOGENETIC TAXONOMY 133 



irregular, long-peduncled, spurred flowers; stamens 8; ovary 

 tricarpellary ; ovules solitary; endosperm 0. Tropaeolum. 

 (Pf. 3 4 :23.) 



Family 87. Balsaminaceae. Touch-me-nots. Succulent 

 herbs, mostly erect, with opposite or alternate leaves, and ir- 

 regular, spurred axillary flowers; stamens 5; ovary penta- 

 carpellary, ovules many; endosperm 0. Impatiens. (Pf. 

 3 5 :383.) 



Family 88. Limnanthaceae. Succulent marsh herbs, with 

 alternate, pinnate leaves; flowers pentamerous; stamens 10; 

 carpels 5; endosperm 0. Limnanthes. (Pf. 3 5 : 136.) 



Family 89. Linaceae. Flaxes. Herbs and shrubs, with al- 

 ternate simple leaves; pistil 3-5-celled; endosperm fleshy (or 

 rarely 0). Linum. (Pf. 3 4 : 27.) 



Family 90. Humiriaceae. Trees with alternate simple 

 leaves; pistil 5-7-celled; endosperm copious. Humiria, Sac- 

 co glottis. (Pf. 3 4 :35.) 



Family 91. Erythroxylaceae. Shrubs and trees, with 

 mostly alternate, simple leaves ; flowers pentamerous ; stamens 

 10; ovary 3-4-carpellary ; fruit a drupe; endosperm fleshy. 

 Erythroxylon. (Pf. 3 4 : 37.) 



Family 92. Zygophyllaceae. Herbs and shrubs with 



usually opposite, compound leaves; pistil lobed, 4-5-celled; 

 endosperm copious (or rarely 0). Z y g o phyllum , Guaiacum, 

 Larrea. (Pf. 3 4 :74.) 



Family 93. Cneoraceae. Shrubs with alternate entire 



leaves, trimerous or tetramerous flowers ; pistil 3 or 4-celled, 

 each cell with one ovule; endosperm fleshy. Cneorum. (Pf. 

 3 4 :93.) 



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

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

 pistil lobed, 4^5-celled ; endosperm fleshy or 0. Xanthoxylum, 

 Ruta, Dictamnus, Ptelea, Limonia, Citrus. (Pf. 3 4 : 95.) 



Family 95. Simarubaceae. Trees and shrubs with gener- 

 ally alternate, non-glandular, simple, or compound leaves; 

 pistil lobed, 1-5-celled; endosperm fleshy or 0. Simaruba, 

 Quassia, Holacantha, Ailanthus. (Pf. 3 4 : 202.) 



