178 
Spring Flora of Oklahoma 
branched tendrils. Leaves lobed, mostly cordate at the 
base. Flowers large, yellow, axillary, monoecious. Calyx- 
tube campanulate, usually 5-lobed. Corolla campanulate, 
5-lobed to about the middle, the lobes re-curving. Stam- 
inate flowers with 3 stamens and no pistil. Pistillate 
flowers with 1-pistil. Ovary oblong. Stigmas 3-5, each 
2-lobed, papillose. Staminodia 3. Fruit large, fleshy, 
with a thick rind. 
1. Pepo fcetidissima (H. B. K.) Britton. Missouri Gourd. Stem 
stout, scabrous, trailing to a length of 15°-25°. Root large, carrot¬ 
shaped. Leaves ovate-triangular, thick and somewhat fleshy, cordate 
or truncate at the base, 4'-12' long, denticulate, rough above, canes- 
cent beneath. Flowers mostly solitary. Corolla 2%'-4' long. Pepo 
globose, 2'-3' in diameter, smooth. 
In dry soil. Miay-September. Common. 
II. CYCLANTHERA Schrad. 
Annual or perennial, climbing, mostly glabrous vines, 
with forked or simple tendrils. Leaves digitately com¬ 
pound. Flowers small, white or greenish, monoecious. 
Calyx cup-shaped, 5-toothed. Corolla rotate, 5-parted. 
Staminate flowers racemose or panicled, the stamens 
united into a central column. Pistillate flowers solitary. 
Ovary obliquely ovoid, beaked, 1-3-celled. Fruit spiny, 
obliquely ovoid, beaked. 
1. Cyclanthera dissecta (T. & G.) Arn. Cut-leaved Cyclan- 
tiiera. Annual, stem smooth and angular, glabrous, branching, climb¬ 
ing to a height of 3°-4°. Leaves digitately 3-7-foliolate, the leaflets 
rough on both sides, dentate, or somewhat lobed. Staminate flowers 
racemose. Pistillate flowers solitary. Fruit narrowed at the base, 
slightly oblique, about 1' long, armed with slender spines. 
Thickets. May-September. Wichita Mountains. 
FAMILY 87. CAMPANULACE7E. Bellflower Family. 
Herbs with milky juice. Leaves alternate, without 
stipules. Flowers epigynous, actinomorphic, not clus¬ 
tered. Calyx 5-lobed. Corolla regular, bell-shaped, 5- 
lobed. Stamens 5, usually free from the corolla and not 
