Utricularia naviculata P.Taylor

• Authority

  Maguire, Bassett. 1967. The botany of the Guayana Highland--Part VII. Mem. New York Bot. Gard. 17: 1-439.

• Family

  Lentibulariaceae

• Scientific Name

  Utricularia naviculata P.Taylor

• Description

  Latin Diagnosis - U. cymbanthae Oliv., affinis, sed inflorescentia 3-6 flora, bracteis multo majori-bus, foliis multo majoribus, seminibus irregulariter dentato-alatis differt. Herba aquatica, libere natans; stolones capillares, ramosi, usque circiter 10 cm longi; folia numerosa, alterna, circiter 10 mm longa, in segmenta capillaria dichotome dissecta; utriculi terminales, dimorphi, aut 1.5 aut 0.5 mm longi, in omnibus foliorum segmentis terminalibus siti, ovoidei, ore terminali setis 2 ± ramosis praedito; omnes partes vegetativae (cum inflorescentia, pedicellis floribus-que exceptis) glandulis clavatis ± dense indutae; inflorescentiae laterales, juxta-axillares, 3-5 cm altae, 3-6 florae, scapo capillari, bracteis naviculatis hyalinis 2-2.5 mm longis; pedicelli capillares, sub anthesi erecti, sub fructu recurvi, circiter 5 mm longi; calyx hyalinus, lobis inaequalibus, lobo superiore oblato circiter 1 mm lato, inferiore obovato circiter 0.5 mm lato, sub fructu vix accrescens; corolla alba, circiter 2.5 mm longa, labio superiore ± orbiculari obscure 3-lobo circiter 1 mm lato, inferiore late ovato basi ± cordato circiter 2 mm longo, palato subgibbo, calcari saccato brevissimo; ovarium ovoideum, ovulis circiter 4; capsula inde-hiscens, anguste ovoidea, hyalina, semina 2-4 gerens, circiter 1.5 mm longa; semina late elliptica, applanata, pro rata late irregulariter dentato-alata, tota longitudine (ala inclusa) circiter 0.8 mm.

• Discussion

  Type. Venezuela, Amazonas, Rio Orinoco, Sabana Cumare, on right bank of Cano Cumare, 20 km above San Fernando de Atabapo at 125 m elevation. Flowers white. Locally abundant in water. Aug. 5, 1959, Wurdack & Adderley 43772 (holotype K, isotype NY).