Utricularia heterosepala Benj.

Species

Angiosperms > Lamiales > Lentibulariaceae > Utricularia

Characteristics

Terrestrial. Rhizoids few, capillary, basally thickened, with numerous papillose branches c. 0.5 mm long. Stolons numerous capillary, much branched and mat-forming, up to 15 cm long or more. Foliar organs very numerous and conspicuous at anthesis, on the stolons, narrowly ovate or elliptic, membranous, 1-2 cm long, 2-3 mm wide, apex rounded, multinerved. Traps numerous on the vegetative organs, globose, 1-2 mm long, shortly stalked, mouth basal, upper lip with 2 long simple subulate appendages, lower lip sometimes with a small ± obscure lamelliform projection at the distal end of the stalk. Inflorescence erect, 4-15 cm long; peduncle filiform, terete, glabrous; flowers 3-12, distant; scales few, similar to the bracts; bracts basifixed, ovate-deltoid, acute, 2-3 mm long, 3-nerved; bracteoles absent; pedicels erect, filiform, very narrowly winged. Calyx lobes subequal at anthesis, very unequal in fruit, narrowly ovate, both c. 4 mm long at anthesis, apex of upper acute, of lower obscurely bidentate, lower conspicuously accrescent and up to 6 mm long and 2.5 mm wide in fruit. Corolla pink or white, 8-11 mm long, upper lip narrowly oblong or oblong-obovate, about 1½ times as long as upper lobe, apex rounded or truncate, lower lip larger, ± orbicular, apex rounded, entire or emarginate, palate conspicuously raised, gibbous, spur subulate, acute, curved, longer than and widely diverging from the lower lip. Filaments linear, straight, c. 1 mm long, anther thecae ± confluent. Ovary ovoid, style short, stigma lower lip quadrate, deflexed, upper lip much smaller, rounded. Capsule very narrowly ovoid, membranous, c. 3 mm long, dehiscing by a ventral longitudinal marginally thickened slit. Seeds few, globose, c. 0.5 mm long, testa thin, reticulate, reticulations distinct, isodiametric or slightly elongate.
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Growth form herb
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Sexuality hermaphrodite
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Environment

In wet places on stones in the forest and along streams and creeks at medium and low altitudes (MERRILL). Fl. Febr.-May.
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Hardiness (USDA) 8-12

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Cultivation

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Distribution

Utricularia heterosepala world distribution map, present in Philippines

Conservation status

Utricularia heterosepala threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:526810-1
WFO ID wfo-0001258645
COL ID 7F5B9
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Utricularia heterosepala