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VIOLACEAE 
Seeds covered with long and short hairs ; flowers white, turning red. 
1. G. hirsutum . 
Seeds covered with long hairs only ; flowers yellow, turning red....2. G. barbadense. 
1. G. hirsutum L. Upland Cotton. Annual; leaves 5-lobed, the 
lobes short, rounded.—Cult., an important cron plant in the Colorado 
Desert (Imperial Co.) ; native of Mexico. The most commonly culti¬ 
vated varieties are Lone Star, Durango. Acala and Mebane’s Triumph. 
Production averages roughly per year about 1000 bales of 500 pounds 
each. 
2. G. barbadense L. Sea-island Cotton. Leaves 5-lobed, the lobes 
ovate-lanceolate.—Less cult, than no. L ; not known wild but probably 
native of the West Indies. Egyptian Cotton is another cultural strain 
of this species. 
HYPERICACEAE. ST. JOHN’S WORT FAMILY 
Ours herbs or the stems slightly woody at base. Leaves opposite, en¬ 
tire, glandular-dotted. Flowers perfect, regular. Sepals 5, persistent. 
Petals 5, yellow. Stamens numerous. Ovary superior; styles 3.—Species 
about 275, mostly temperate and tropical regions in all continents. 
1. HYPERICUM L. St. John’s Wort 
Leaves sessile. Flowers in terminal cymes, rarely solitary. (Ancient 
Greek name.) 
1. H. concinnum Benth. Gold-wire. Perennial; stems wiry, numer¬ 
ous, 1.4 to 2.6 dm. high; leaves linear to lanceolate, usually folded, 1.8 to 
4.2 cm. long; petals black-dotted on the margins.—Foothills, rocky or 
brushy slopes. It is said to poison cattle, but the suspicion is not verified. 
CISTACEAE. ROCK-ROSE FAMILY 
Ours herb-like or woody at base. Flowers complete, regular. Sepals 5, 
persistent, unequal. Petals 5, ephemeral. Stamens indefinite. Ovary 
superior, 1-celled. Capsule 3-valved.—Species about 150, mostly north 
temperate regions, but represented in all continents save Australia. 
1. HELIANTHEMUM Pers. 
Leaves alternate, simple, entire. Flowers yellow, opening but once. 
Style short or none; stigma 3-lobed. (Greek helios, sun, and anthemon, 
blossom.) 
1. H. scoparium Nutt. Rush-Rose. Stems in a rush-like tuft, 1.9 to 
4.8 dm. high, ending in short racemes; leaves linear, 2 to 3 cm. long; 
corolla 1 to 1.5 cm. broad.—Dry slopes and ridges of the chaparral belt. 
VIOLACEAE. VIOLET FAMILY 
Herbs with basal or alternate stipule-bearing leaves and axillary nod¬ 
ding flowers. Sepals 5. Corolla irregular. Petals 5, one of them spur¬ 
red. Stamens 5, conniving about the pistil. Style single. Ovary 1- 
celled, becoming a pod which splits into 3 valves.—About 300 species of 
wide distribution. 
1. VIOLA L. Violet 
Peduncles 1-flowered. Sepals with ear-like lobes at base. Lower petal 
