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(Last Modified On 7/9/2013)
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(Last Modified On 7/9/2013)
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Species
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Utricularia foliosa L.
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PlaceOfPublication
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Sp. PI. 18. 1753.
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Note
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LECTOTYPE: Plumier's drawing, PI. Amer. Fasc. Prim. 7. 158, tab. 165. 1758.
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Synonym
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Utricularia mixta Barnh., Mem. Torrey Bot. Club 16: 111. 1920. TYPE: Cuba, Isle of Pines, Vivijagua, Britton et al. 15014 (NY).
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Description
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Perennial, freely suspended aquatic herbs; stolons robust, to several meters long, distinctly flattened, to 4 mm wide, mucilaginous, the internodes 2-15 cm long. Photosynthetic organs large and conspicuous, alternate on the stolons, broadly ovate in outline, to 15 cm long, + dimorphic, some bearing numerous traps, others bearing few or none, repeatedly pinnately dissected into capillary + terete segments, the ultimate segments setulose. Traps lateral on the segments, obliquely ovoid, 1-2 mm long, shortly stalked, the mouth lateral, the upper lip with 2 simple or sparsely branched setiform appendages. Inflorescences erect, emergent, 7-45 cm long, usually 10-20-flowered, initially congested, the in- florescence axis elongating with age; peduncle straight, terete, 1-3 mm thick; bracts basifixed, broadly ovate or orbicular, 2-4 mm long, the sterile scales absent or 1-2 just below the lowermost flower; pedicels at first erect, spreading and eventually + strongly recurved in fruit, to 16 mm long. Flowers with the calyx lobes subequal, broadly ovate, 3-4 mm long, + connate at the base, scarcely ac- crescent; corolla yellow, 8-15 mm long, the upper lip + orbicular, the lower lip larger, oblate to subreniform, the apex rounded, entire or emarginate, the palate much raised and spurred, the spur narrowly conical, as long as or slightly shorter than the lower lip. Capsules globose, to 8 mm in diam., indehiscent, becoming detached and floating when ripe; seeds few, lenticular, 2-2.5 mm in diam. with a narrow regular hyaline wing.
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Habit
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herbs
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Distribution
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This species is distributed from the southeastern United States to Argentina and the Galapagos Islands, and in tropical Africa and Madagascar.
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Specimen
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CANAL ZONE: Barro Colorado Island, Aviles 906 (F); Starry 80 (F); Shattuck 369 (LIL, MO). Gamboa, Rio Chagres, Allen 1975 (MO). Gatun Lake, Dodge 16769 (G, MO). Gi- gante Bay, Dodge 3470 (NY). Between Frijoles, and Monte Lirio, Killip 12180 (NY). Gamboa, Lazor & Boreham 2930 (FSU, MO). Darien Station, Standley 31562 (NY), 31646 (US). Madden Lake, Woodson & Schery 961 (MO, NY). PANAMA: Juan Mina, Rio Aguardiente Chico, Bartlett & Lasser 16496 (MO). Rio Pescodo, SE part of Gatu'n Lake, Bartlett & Lasser 16601, 16606 (both MO).
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