144 
Spring Flora of Oklahoma 
slender, 5'-12' high. Lower leaves petioled, l'-2' long, pinnatifid or 
pinnately divided into 3-5 entire or dentate segments, upper leaves 
much smaller, sessile. Flowers light blue or white, racemose, 4"-5" 
broad. Capsule globose, l 1 /^" in diameter. 
In moist soil. April-June. Oklahoma and Comanche counties. 
IV. NAMA L. 
Perennial herbs, wih alternate, entire leaves, sometimes 
with spines in their axils. Flowers blue, cymose-clustered, 
or racemose. Calyx-segments distinct to the base, ovate 
or lanceolate. Corolla rotate-campanulate, not append- 
aged within, 5-cleft. Stamens inserted on the base of the 
corolla. Ovary 2-celled. Stigma capitellate. Capsule 
globose or ovoid. 
1. Nama ovata (Nutt.) Britton. Ovate-leaved Nama. Stem 
erect, branched near the summit, puberulent or hirsute, usually spine- 
bearing in the axils. Leaves usually ovate, short petioled, or the 
upper almost sessile, acute at the apex, narrowed or rounded at the 
base. Flowers often V broad or more, in terminal clusters. Corolla 
purplish or white. Capsules about 2" high, globose-ovoid. 
In wet soil. May-September. MicCurtain and Bryan counties. 
FAMILY 75. BORAGINACEZF. Borage Family. 
Annual, biennial or perennial herbs or shrubs. 
Leaves alternate, very rarely opposite or verticillate, ex- 
stipulate, mostly entire and hispid, pubescent, scabrous 
or setose. Flowers perfect, usually regular, mostly blue, 
in one-sided scorpioid spikes, racemes, cymes, or some¬ 
times scattered. Calyx inferior, mostly 5-lobed, 5-cleft, 
6-parted, its lobes valvate. Corolla gamopetalous, mostly 
regular and 5-lobed, sometimes crested or appendaged in 
the throat. Stamens as many as the corolla-lobes and 
alternate with them, inserted on the tube or throat. 
Ovary superior, of 22-ovuled carpels, entire. Fruit mostly 
of 4 1-seeded nutlets, or 2 2-seeded carpels. 
Ovary entire or 2-4-grooved; style terminal. 
I. Heliotropium. 
