Utricularia amethystina Salzm. ex A.St.-hil. & Girard

Florida purple bladderwort (en)

Species

Angiosperms > Lamiales > Lentibulariaceae > Utricularia

Characteristics

Perennial or probably sometimes annual, terrestrial herbs; stolons subter-ranean, trap-bearing, filiform, radiating from the base of the inflorescence. Photosynthetic organs usually present at anthesis, 1-3 or more, rosulate at the in-florescence base, reniform or orbicular to narrowly obovate, pseudopetiolate, 0.5-3 cm long. Traps + globose, long stalked, ca. 1 mm in diam., mouth basal, the upper lip with 2 short straight subulate appendages, these and the lower lip with dense incurved gland-tipped hairs. Inflorescences 5-30 cm long, 1-6-flowered; bracts ovate-deltoid, acute, 1-nerved, ca. 1 mm long, the bracteoles linear, acute, narrower and somewhat shorter than the bracts, often but not always connate with them for a small to a large part of their length, the bracts thus ap-pearing to be tridentate and without bracteoles, the sterile scales on the peduncle 2-many, similar to the bracts but smaller; pedicels erect or ascending, usually ca. 1 cm long but often shorter or much longer. Flowers with the calyx lobes un-equal, the upper lobe ovate-oblong, obtuse, 2-3 mm long, strongly cucullate, firm in texture with a narrow more membranous margin, the lower lobe slightly shorter, oblong, less cucullate and of a + uniform membranous texture; corolla usually violet, mauve or sometimes white with a yellow palate, typically 6-12 mm long but sometimes smaller or larger, the upper lip broadly ovate-oblong, about twice as long as the upper calyx lobe, the lower lip about the same length but broader and ? deeply and equally 3-lobed, the palate gibbous, prominent, the spur nar-rowly cylindrical or subulate from a conical base, the apex usually obtuse, usually 2-3 times as long as the lower lip. Capsules globose, ca. 2 mm in diam., firm in texture, dehiscing by two lateral longitudinal slits into dorsal and ventral valves; seeds numerous, + ellipsoid, ca. 0.3 mm long.
Life form annual
Growth form herb
Growth support free-standing
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Sexuality hermaphrodite
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Environment

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Hardiness (USDA) 9-12

Usage

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Edible -
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Cultivation

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Images

Utricularia amethystina unspecified picture

Distribution

Utricularia amethystina world distribution map, present in Belize, Bolivia (Plurinational State of), Brazil, Colombia, Costa Rica, Guatemala, French Guiana, Guyana, Honduras, Mexico, Nicaragua, Panama, Peru, Suriname, Trinidad and Tobago, United States of America, and Venezuela (Bolivarian Republic of)

Conservation status

Utricularia amethystina threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:260742-2
WFO ID wfo-0000415728
COL ID 7F5DC
BDTFX ID -
INPN ID 767571
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Utricularia williamsii Calpidisca amethystina Calpidisca modesta Calpidisca roraimensis Calpidisca standleyae Utricularia amethystina Utricularia spatulifolia Utricularia roraimensis Utricularia bicolor Utricularia velascoensis Utricularia stolonifera Utricularia genliseoides Utricularia selloi Utricularia trinervia Utricularia spatulata Utricularia damazioi Utricularia lindmanii Utricularia dawsonii Utricularia adenantha Utricularia amethystina f. alutacea Utricularia tepuiana Utricularia kaieteurensis Utricularia hirtella Utricularia bolivarana Utricularia alutacea Utricularia turumiquirensis Utricularia versicolor Utricularia punctifolia Utricularia modesta Utricularia obovata