Spring Flora of Oklahoma 
vii 
5a. Woody vines climbing by tendrils. 
55. VITACEE. 104 
5b. Shrubs. 54. RHAMNACEE. 103 
4b. Ovary 1-celled. 
5a. Style and stigma 1, fruit a capsule; herbs with simple 
leaves. 65. PRIMULACEE. 127 
5b. Style 1, stigmas 2-3, sepals 2, fruit a capsule; leaves 
succulent. 21. PORTULACACEE. 39 
2c. Stamens not more than twice as many as the petals; when 
of the same number as the petals, alternate with them. 
3a. Carpels 2 or more, distinct or sometimes united at the base. 
4a. Shrubs or trees. 
Leaves punctate with transparent dots, alternate. 
44. RUTACEE. 87 
4b. Herbs. 
5a. Stamens distinct. 
Ga. Carpels as many as the sepals or petals. 
29. CRASSULACEE. 58 
6b. Carpels fewer or more than the sepals or petals. 
34. ROSACEE. 61 
5b. Stamens united; plants with milky sap. 
71. ASCLEPIADACEE. 135 
3b. Carpels 1 or more, united. 
4a. Carpels 1, ovary with 1 parietal placenta; leaves alter¬ 
nate, usually with stipules, usually compound. 
5a. Fruit spiny, indehiscent; leaves simple, exstipulate. 
38. KRAMERIACEE. 70 
5b. Fruit a legume; leaves 2-3 pinnate; flowers regular. 
36. MIMOSACEE. 64 
5c. Fruit a legume, sometimes prickly; upper petal in¬ 
closed by the lateral ones in the bud; leaves simple 
or compound, mostly with stipules. 
37. CESALPINIACEE. 67 
5d. Fruit a legume or loment, upper petal inclosing the 
lateral ones in the bud; leaves compound with 
stipules. 39. FABACEE. 70 
4b. Carpels more than 1, as shown by the compound ovary, 
cavities, placentae, styles, or stigmas. 
5a. Ovary 1-celled. 
6a. Corolla regular or nearly so. 
7a. Ovules several or many, on 2 or more parietal 
placentae. 59. PASSIFLORACEE. 113 
7b. Ovules solitary or on a central placenta in the 
bottom of the cavity. 
8a. Leaves alternate. 
