VI Flora of the Palousc Region 



2— STAMENS AS MANY AS THE PETALS AND OPPOSITE THEM. 



Ovary i-celled: anthers opening by uplifted valves. BERBERIDACEAK 79 



Ovary i-celled: anthers not opening by uplifted valves. 



Style and stigma 1: ovules more than 1. primulaceae 135 



Style 1; stigmas 3: ovules several. portulacaceae 67 



Ovary 2-4-celled rhamxaceae 114 



:)— STAMEN'S NOT MORE THAN TWICE AS MANY AS THE PETALS, WHEN OF THE 

 ■ SAME NUMBER ALTERNATE WITH THEM. 



a — Ovary wholly superior. 



Ovaries 2 or more, separate. 



Stamens united with each other and with the stigma. 



ASCLEPIADACEAE I38 



Stamens unconnected, hypogynous. 



Herbs, not fleshy. raxu.xculackak 74 



Herbs, with thick fleshy leaves. crassulaceae 88 



Stamens unconnected, perigynous. 



Stamens twice as many as pistils. crassulaceae 88 



Stamens neither the same nor twice as many as pistils. 



Leaves without stipules. saxifragaceae 88 



Leaves with stipules. rosaceae 93 



Ovaries 2-5, somewhat united at base, separate above. 



Shrubs or trees. sapixdaceae "3 



Terrestrial herbs. saxifragaceae 88 



Ovaries or lobes of ovary 3-5, with a common style, gerantaceae i°9 



Ovary 1. 



Ovary simple, with 1 parietal placenta. eegumixosae ioi 



Compound, as shown by the number of cells, placentae, styles or stigmas. 

 Ovary i-celled. 



Corolla irregular: stamens 6: petals 4. FUMARIACEAE 80 



Corolla irregular: petals and stamens 5. 



VIOL ACE a E 117 



Corolla regular or nearly so. 



Ovule 1 : shrubs or trees. axacardiaceae 112 



Ovule 1 : herbs. cruciferae 81 



Ovules more than 1, in the center or bottom of the cell. 



caryophyllaceae 69 

 Ovules several or many, on two or more parietal placentae. 

 Leaves punctate with pellucid dots. 



hypericaceae 116 



-2, Leaves not punctate. SAXIFRAGACEAE ^ ,s 



Ovary /-several-celled. 



Stamens neither just as many nor twice as many as the petals. 



CRUCIFERAE 81 



Stamens just as many or twice as many as the petals. 

 Cells of ovary 1-2-ovuled. 

 Herbs. 



Cells of ovary as many as sepals. 



GERANIACEAE IO9 



Cells of ovary twice as many as sepals. 



LINACEAB HO 



Shrubs or trees. 



Leaves palmately- veined, .sapindjceae 113 



Leaves pinnately-veined. celastraceae 113 



Cells of ovary several- man y-ovuled. 



I'MIiELLIFEKAE 1 25 



