X 
Spring Flora of Oklahoma 
leaflets 3, inversely heart-shaped; herbs 
with sour sap. 
41. OXALIDACEiE. 83 
10b. Stamens distinct, not on an hypanthium. 
Styles 2-5, distinct; herbs with oppos¬ 
ite, entire leaves, the stems usually 
with swollen joints. 
23. CARYOPHYLLACEiE. 43 
10c. Stamens distinct, on an hypanthium or 
disk. Style 1, pod in the hypanthium, 
1-6 celled. 
61. LYTHRACEiE. 114 
9b. Stipules between the opposite, trifoliate 
leaves, caducous; shrubs or small trees. 
50. STAPHYLEACE^E. 100 
2d. Stamens 5-60; fleshy herbs with succulent, entire leaves; 
carpels united. ' 21. PORTULACACEiE. 39 
lb. Flowers epigynous; calyx above the ovary. 
2a. Ovules and seeds more than one in each cavity of the ovary. 
3a. Ovary 1-celled. 
4a. Herbs with rough or stinging pubescence; leaves alter¬ 
nate and exstipulate; stamens numerous. 
60. LOASACEiE. 114 
4b. Shrubs; petals 4 or 5; fruit a pulpy berry. 
32. GROSSULARIACE^E. 60 
4c. Herbs with glabrous, succulent, entire leaves; styles 3-8. 
21. PORTULACACEiE. 39 
3b. Ovary 2,-celled to many celled. 
4a. Herbs or herbaceous vines; stamens 4 or 8; style 1. 
62. ONAGRACE^E. 115 
4b. Trees, shrubs, or woody climbers. 
5a. Stamens 4 or 8, style 1; stipules none. 
62. ONAGRACE^E. 115 
5b. Stamens 4 or 5; ovary 4-5 celled; stipules fugacious. 
49. CELASTRACEiE. 99 
5c. Stamens 8-40; shrubs, trees, or woody vines; ovary 
2-many celled. 30. HYDRANGEACEiE. 59 
2b. Ovules and seeds only 1 in each cavity of the ovary. 
3a. Herbs. 
4a. Stamens 2 or 8, style 1, stigma 2-4 lobed. 
62. ONAGRAGEiE. 115 
4b. Stamens 5, fruit dry, styles 2; flowers in umbels. 
63. AMMIACEiE. 120 
3b. Shrubs or trees. 
4a. Stamens 4 or 5, style and stigma 1. 
64. CORNACEiE, 126 
