Jepson Flora Project: Jepson Interchange    

 
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Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
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GENTIANACEAE

GENTIAN FAMILY

James S. Pringle (except as specified)

Annual, perennial herb
Stem decumbent to erect, < 2 m
Leaves simple, cauline (sometimes also basal), opposite or whorled, entire, sessile or basal ± petioled; stipules 0
Flower bisexual, radial, parts in 4's or 5's, except pistil 1; sepals fused, persistent; petals fused, persistent or deciduous, corolla generally without fringes or scales on inner surface, sinuses between lobes generally unappendaged; stamens epipetalous, alternate corolla lobes; ovary superior, chamber 1, placentas parietal, often intruding
Fruit: capsule, 2-valved
Seeds many
Genera in family: ± 80 genera, 900 species: worldwide; some cultivated (Eustoma , Exacum , Gentiana )
Reference: [Wood & Weaver 1982 J Arnold Arbor 63:441–487]

EUSTOMA

CATCHFLY GENTIAN

Annual, short-lived perennial herb, glabrous, ± glaucous
Stem erect, branched
Leaves basal and cauline, opposite, clasping
Inflorescence: cyme or flowers solitary
Flower: parts in 5's; calyx lobed ± to base, lobes linear, narrowly keeled, acuminate; corolla > 2 cm, bell-shaped, lobes >> tube, nectary pits 0; nectaries at base of ovary; ovary sessile, style distinct, slender, stigma 2-lobed
Species in genus: 2 weakly differentiated species: North America, C.Am, West Indies
Etymology: (Greek: beautiful mouth, from corolla tube)

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bioregional map for EUSTOMA being generated
 
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