Flora of the Palo use Region vn 



Leaves opposite, with stipules, eeatixaceae 117 



Leaves when opposite without stipules. 

 Stamens free from the calyx. 



Style 1. Ericaceae. 132 



Styles 2-5. CARYOPHYLLACE AE 69 



Stamens on the calyx. 



Styles 2-3. SAXIFRAGACEAE 88 



Style I. LVTHRACEAE 1 20 



b — Ovary at least half-inferior. 

 Ovules and seeds more than I in ach cell. 



Ovary i-celled, many-ovuled from the base. PORTULACACEAE 69 



Ovary 1 -celled, with 2-3 parietal placentae. saxifragaceae 88 



Ovary 2-several-celled. 



Stamens on a flat disk which covers the ovary. 



CELASTRACEAE 113 



Stamens on the calyx. 



Style I. OXAGRACEAE 121 



Styles 2-3, distinct. saxifragaceae 88 



Ovules and seeds only one in each cell. 



Stamens 10 or 5. Crataegus in rosaceae 93 



Stamens 2 or 8: style 1. Gaura in onagraceae 121 



Stamens 5: flowers usually in umbels, rarely in heads. 



II— PETALS MORE OR LESS UNITED INTO ONE PIECE. 



1— STAMENS MORK NUMEROUS THAN THE COROLLA-LOBES. 



Ovary i-celled with 1 parietal placenta. LEGDMINO8AE 101 



Ovary i-celled with 2 parietal placentae. ffmariaceae 80 



Ovary 3— many-celled. 



Stamens free or nearly free from the corolla. Ericaceae 132 



Stamens on the base or tube of the corolla. MALVACEAE 115 



2— STAMENS (FERTILE ONES) AS MANY AS THE COROLLA-LOBES AND OPPOSITE 



THEM. PRIMULACEAE 135 



3— STAMENS AS MANY AS THE COROLLA I.< .ISI-.S AND ALTERNATE WITH THEM 



OR FEWER. 



a — Ovary superior. 



Corolla irregular: fertile stamens 4 or 2. 

 Ovules solitary in the 1-4 cells. 



( )vary 4-lobed, the style rising- from between the lobes. 



LABIATAE I50 



Ovary not lobed, the style from its apex, verbexaceae 149 



Ovules numerous or at least 2 in each cell. 



Ovary and pod i-celled. orobaxchaceae 165 



Ovary and pod 2-celled. scropiui. ami aceae 156 



Corolla somewhat irregular: fertile stamens 5. 



Verbascum in bcrophdlariaceae 157 

 Corolla regular. 



Stamens as many as the corolla-lobes. 

 Ovaries 2, separate. 



Filaments distinct. apocvxaceae 138 



Filaments monadelphous. ASCLEPIADACEAB 138 



I >yary 1, deeply 4-lobed around the style. 



Leaves alternate. borragixaceae 145 



Leaves opposite. Mentha in labJATAe 154 



