Spring Flora of Oklahoma 
49 
FAMILY 27. FUMARIACEiE. Fumewort Family. 
Annual, biennial or perennial herbs, with watery sap, 
dissected, alternate or basal leaves without stipules, and 
perfect, irregular flowers variously clustered. Sepals 2, 
scale-like. Petals 4, somewhat united, the 2 outer ones 
spreading above, one or both saccate or spurred at the 
base, the 2 inner smaller, narrower, thickened at the tips 
and united over the stigma. Stamens 6, diadelphous, 
hypogynous, in 2 sets of 3. Carpels 2, united into a 
single pistil, the ovary 1-celled. Stigma 2-lobed. Fruit 
a 2-valved, several-seeded capsule, or 1-seeded and inde- 
hiscent. 
I. CAPNOIDES (Tourn.) Adans. 
Erect or climbing herbs, with basal and cauline de¬ 
compound leaves, and racemose flowers, terminal, or op¬ 
posite the petioles. Sepals 2, small. Corolla irregular. 
Petals 4, erect-connivent, one of the outer pairs spurred 
at the base, the interior ones narrow, keeled on the back. 
Stamens 6, in 2 sets, opposite the outer petals. Capsule 
linear or oblong, 2-valved. 
Flowers 3"-4" long; spur short. 1. C. Micranthum. 
Flowers 6"-8" long; spur conspicuous. 
Pods smooth. 2. C. Campestre. 
Pods densely covered with transparent vesicles. 
3. C. crystallinum. 
1. Capnoides micranthum (Engelm.) Britton. Small-flowered 
Corydalis. Lower leaves slender-petioled, the upper nearly sessile, 
all finely dissected into linear or oblong, sometimes cuneate, acute or 
obtuse segments. Pods ascending, short pedicelled, torulose. Seeds 
obtuse-margined, smooth, shining. 
In woods. February-April. 
2. Capnoides campestre Britton. Plains Corydalis. Flowers 
spicate, racemose, about 8" long, conspicuous, bright yellow. Spur of 
the corolla blunt, nearly straight, 2"-2y 2 " long. Pods curved up¬ 
ward, very short-pedicelled, stout, somewhat 4-sided. Seeds sharp- 
