Rcz'isions of Some Plant Phyla 43 



peltate leaves, and many separate carpels immersed in the flattish 

 axis ("receptacle"). Nelumho. (Pf. Ill, 2, i.) 



Family 66. Cabombaceae. Water-shields. Small aquatic herbs 

 with floating, sometimes peltate leaves, and few to many separate 

 carpels (not immersed). Cabomba, Brascnia. (Pf. Ill, 2, i.) 



Family 67. Ceratophyllaceae. Aquatic herbs with verticillate, 

 divided leaves; flowers dioecious;, perianth o; pistil i-celled, 

 i-ovuled; endosperm o. Ceratophyllum. (Pf. Ill, 2, 10.) 



Family 68. Dilleniaceae. Petals present, in one whorl ; sepals 

 persistent; mostly shrubs and trees with alternate leaves. Dil- 

 lenia, Actinidia. (Pf. Ill, 6, 100.) 



Family 69. Winteranaceae. Aromatic trees with alternate 

 leaves; sepals 4-5; petals 4-5 (or o) ; stamens 20-30; pistil 2- to 

 5-carpellary. Winterana, Cinnamodcndron. (Pf. Ill, 6, 314.) 



Order Malvales. Pistil usually of 3 to many carpels, with 

 as many cells (sometimes greatly reduced) ; ovules few; stamens 

 indefinite, monadelphous, branched, or by reduction separate and 

 few; endosperm present or absent. 



Family 70. Sterculiaceae. Trees and shrubs with alternate 

 leaves ; flowers perfect or diclinous, with or without petals ; sta- 

 mens mon- or polyadelphous, 2-celled; pistil 4- to many-celled; 

 endosperm present or o. Thcobroma, Stcrcidia. (Pf. Ill, 6, 69.) 



Family 71. Malvaceae. Mallows. Herbs, shrubs, and trees 

 with alternate leaves; flowers perfect, with petals; stamens mon- 

 adelphous, i-celled; pistil 5- to many-celled; endosperm little or 

 o. Abutilon, Althaea, Malva, Hibiscus, Gossypium. (Pf. Ill, 

 6, 30.) 



Family y2. Bombaceae. Tropical trees with alternate, palmate 

 leaves; sepals and petals present; stamineal column 5-8 cleft. 

 Adansonia, Bomba.r. (Pf. Ill, 6, 53.) 



Family y^^. Scytopetalaceae. Trees of the southern hemi- 

 sphere, with alternate leathery leaves; sepals small; petals much 

 larger, valvate; stamens many. Scytopetalum. (Pf. Nach. 242.) 



79 



