Revisions of Some Plant Phyla 47 



whorled leaves; sepals 5; petals i, 3, or 5; stamens several, usu- 

 ally but one fertile. Vochysia, Qnalea. (Pf. Ill, 4, 312.) 



Family loi. Polygalaceae. Herbs, shrubs, and trees with al- 

 ternate leaves ; sepals 5 ; petals 3-5 ; stamens usually 8. Polygala, 

 Xanthophyllum. (Pf. Ill, 4. 323.) 



Family 102. Tremandraceae. Small shrubs'with alternate, op- 

 posite, or whorled leaves ; sepals and petals 3, 4, or 5 each ; sta- 

 mens twice as many. Tremandra, Tetratheca. (Pf. Ill, 4, 320.) 



Family 103. Dichapetalaceae. Trees and shrubs with alter- 

 nate simple leaves; pistil 2- to 3-celled; endosperm o. Dichapet- 

 alum, Tapnra. (Pf. Ill, 4, 345.) 



Family 104. Euphorbiaceae. Spurges. Herbs, shrubs, and 

 trees, mostly with a milky juice and alternate or opposite leaves; 

 flowers diclinous, with a perianth of i or 2 whorls, or wanting; 

 stamens 2-celled, free or united ; pistil usually 3-celled ; endo- 

 sperm copious. Euphorbia, Pedilanthus, Phyllanthus, Croton, 

 Mallotus, Acalvpha, Ricinus, Jatropha, Manihot, Stillingia. (Sp. 



4319.) (Pf. m, 5, 1.) 



Family 105. Callitrichaceae. Floating herbs with opposite ses- 

 sile leaves ; flowers sessile in the leaf-axils ; perianth none ; sta- 

 mens I or 2; ovary 2-celled. Callitriche. (Pf. Ill, 5, 120.) 



Order Guttiferales. Pistil mostly of 2 or more carpels, 2- 

 celled, with axile placentae ; stamens usually indefinite ; endo- 

 sperm usually wanting. 



Family 106. Theaceae. Teas. Trees and shrubs usually with 

 alternate leaves ; inflorescence various ; petals imbricated. Th'ea, 

 Stuartia. (Pf. Ill, 6, 175.) 



Family 107. Cistaceae. Herbs and shrubs with opposite (or 

 alternate) leaves; sepals 3-5; petals 5; stamens many; pistil 3- 

 to 5-carpellary. Cistus, Helianthemum, Hudsonia. (Pf. Ill, 6, 

 299.) 



Family 108. Guttiferaceae* Trees, shrubs, and herbs, with op- 

 posite or whorled, glandular-dotted leaves; inflorescence often 



83 



