ILLUSTRATED FLORA 
VOL. IV 
Family 137. BIGNONIACEAE. 
BIGNONIA FAMILY. 
Trees, shrubs, or woody vines, or some exotic species herbs. Leaves opposite or 
rarely alternate, epee compound or simple, estipulate. Flowers showy, terminal 
or axillary, u clustered. Corolla campanulate, funnelform, or tubular, 5-lobed 
lobed stigma. Fruit a 2-valved, sometimes woody, capsule. Seeds numerous, flat, 
winged, vou endyspetits sole ns broad, flat, entire or 2-lobed ; radicle straight. 
A family of about 100 genera and over 500 species, mainly tropical but a few in the warm temperate zones 
of both the es a sonthern Keuiophietes. 
1. CHILOPSIS D. Don, Edinb. Phil. Journ. 9: 261. 1823. 
Shrub with simple, usually alternate leaves. Flowers in terminal solitary racemes. Calyx 
inflated, deeply 2-lipped, upper lip 3-toothed, lower 2-toothed. Corolla funn . 5- lobed 
and obscurely 2-lipped. Anther-bearing stamens 4, the fifth represented by a rudimentary 
filament. Capsule linear and terete, somewhat woody. Seeds flat, with their wieie dissected 
into long hairs. [Greek, meaning lip and resemblance 
A monotypic genus of the arid southwestern United States and eaice: 
‘i eae ae (Cav.) Sweet. Desert Willow. Fig. 4945. 
Bignonia ? linearis Cav. Ic. 3: 35. pl. 2 796. 
Chilopsis saligna D. ci ae its Phil. Journ 9: 26L.. 1823. 
Chilopsis linearis Sweet, Hort. Brit. 2 1827. 
Chilopsis linearis var. arcuata Pots bis dane 3: 366. 1936. 
A willow-like shrub, a — several stems, 2-6 m. high. Leaves narrowly linear to linear- 
lanceokate, 5-15 cm. long, 2- wide, long-attenuate at both ends, [a green, glabrous, and 
similar on ea h idee: racemes ea bps many-flowered ; calyx mm, long, pubescent corolla 
ong, fragrant, white with pink lines or pink; capsule firm, 15-27 cm. 4-5 m 
in diameter, tapering at ds. 
Frequent along eee Seni Lower Sonoran Zone; d Col Deserts, California, and 
djacent Nevada and Ariz #3 to western Texas and south to Sp er California re the mainland of Mexico. 
ste ocalier: not stated. May -f ug. Sometimes cultivated as an ornamental. 
Family 138. MARTYNIACEAE. 
UNICORN-PLANT FAMILY. 
Herbs with mostly opposite estipulate leaves and perfect irregular flowers. Calyx 
4-5-cleft or 4-5-parted, or sometimes divided to the base on the lower side and spatha- 
ceous. Corolla sympetalous, irregular, the tube oblique, often decurved, the limb 5- 
lobed and heey 2-lipped, the lobes nearly equal, upper 2 exterior in the bud. An- 
ther-bearing stamens 2 or 4, didynamous or the posterior pair sometimes sterile ; 
anthers 2-celled, fongitudinally dehiscent. Ovary superior, 1-celled, with 2 parietal 
placentae expanded into broad surfaces, or appearing 2—4-celled by the intrusion of 
the placentae or by false partitions ; ovules numerous or sometimes few, anatropous ; 
style slender ; stigma 2-lobed or 2-lamellate. Fruit various. Seeds often compressed : 
endosperm none ; cotyledons large. 
A family of 5 genera and about 15 species, natives of temperate and tropical regions of the western hemi- 
sphere. 
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