112 
Spring Flora of Oklahoma 
stock. Blades often 5' broad, reniform or ovate, cordate, acute or 
sometimes abruptly pointed. Scapes shorter than the leaves. Corolla 
deep violet, white or greenish-yellow at the center, sometimes wholly 
white. Capsules ellipsoid, green or dark purple, 5"-7" long, seeds 
1" long, dark brown. 
Moist fields and groves. April-May. Frequent. 
4. Viola sagittate. Ait. Arrow-leaved Violet. Glabrous or fine¬ 
ly pubescent. Petioles commonly longer than the blades. Blades 
lanceolate or oblong-lanceolate, l%'-4' long, distantly and obscurely- 
toothed above the middle, hastately or sagittately-toothed or cleft at 
the base. Earliest and latest leaves deltoid ovate, merely crenate at 
the base. Corolla violet-purple. Capsules 4"-7" long, containing 
50-70 brown seeds. 
Moist banks and fields. April-May. Lincoln-Oleveland counties. 
5. Viola eriocarpa Schwein. Smoothish Yellow Violet. Pub¬ 
escent on the upper part of stem and on the lower surface of leaves 
along veins. Blades ovate to reniform, cordate or truncate, mostly 
pointed. Cauline leaves only on the upper half of the stem, broadly 
ovate, subcordate. Lateral petals bearded. Capsule woolly or some¬ 
times glabrous. 
Seeds brown, a little more than 1" long. 
In low, open woods. May-July. Cleveland County. 
6. Viola Rafinesquii Greene. Field Pansy. Glabrous, annual 
with slender stem, 3'-8' high, often branched from the base. Leaves 
small, the lowermost 3"-5" wide, suborbicular, on slender petioles, 
the upper obovate to linear-oblanceolate, sparingly crenulate. Flow¬ 
ers small, yellowish-white to bluish-white. Seeds light brown, 
long. 
In fields and open woods. March-May. Common. 
7. Viola tricolor L. Pansy. Heart’s Ease. Glabrous or pub¬ 
escent, 4'-12' high. Stem angled and often branched. Upper leaves 
oval or lanceolate 6"-12" long, the lower ovate, often cordate, all 
crenate-serrate. Stipules foliaceous, laciniate or lyrate-pinnatifid. 
Flowers 8"-12" broad, variously colored with yellow, purple or white. 
In waste places and cultivated. April-July. 
II. CALCEOLARIA Loefl. 
Herbs, rarely shrubs, with mostly opposite leaves, and 
axillary or racemose flowers. Sepals somewhat unequal. 
Petals unequal, the lower one longest, gibbous or saccate at 
the base, the two upper shorter then the lateral ones. 
Filaments distinct, the lower spurred or glandular. Cap¬ 
sule elastically 3-valved. Seeds ovoid-globose. 
1. Calceolaria verticillata (Ort.) Kuntze. Nodding Violet. 
Stems clustered, ascending or erect, slightly pubescent, 4'-15' high. 
Leaves alternate, often fascicled. Blades linear, 9"-20" long. Stip- 
