Spring Flora of Oklahoma 
IX 
8b. Stamens distinct and fewer than the 4 petals; 
trees or shrubs with opposite, pinnate or 
simple leaves. 
67. OLEACE^E. 130 
8c. Stamens about 8, shrubs or trees with palmate- 
ly-veined, opposite leaves, fruit a samara. 
51. ACERACEAE. 100 
7b. Stamens just as many or twice as many as the 
petals. 
8a. Ovules and seeds 1 or 2 in each cavity. 
9a. Herbs usually with milky sap ; flowers mon¬ 
oecious or dioecious. 
46. EUPHORBIACEiE. 89 
9b. Herbs without milky sap; flowers actin- 
omorphic and perfect. 
10a. Cavities of the ovary as many as the 
sepals; leaves with stipules. 
40. GERANIACEiE. 82 
10b. Cavities of the ovary twice as many as 
the sepals; leaves without stipules. 
42. LJNACE'AE. 84 
9c. Shrubs, trees, woody climbers, or herbaceous 
vines. 
10a. Leaves pinnately-veined, simple, not punc¬ 
tate. 
11a. Calyx minute, fruit a berry-like drupe ; 
trees or shrubs with simple, mostly 
alternate leaves. 
48. ILICACEJE. 98 
lib. Calyx not minute; pod colored, dehis¬ 
cent ; seeds inclosed in a pulpy aril. 
49. CELASTRACEiE. ' 99 
10b. Leaves pinnately-compound, alternate; 
trees, with a globose or lobed berry. 
53. SAPINDACE^E. 103 
10c. Leaves palmately-veined or pinnately- 
compound ; fruit winged. 
51. ACERACE^E. 100 
8b. Ovules and seeds 3-5 in each cavity; annual, 
more or less prostrate herbs with pinnate 
leaves. 43. ZYGOPHYLLACEiE. 86 
8c. Ovules and usually seeds many or several in 
each cavity. 
9a. Stipules none when the leaves are opposite. 
10a. Stamens 10, slightly united at the base; 
