Utricularia juncea Vahl, 1804

Guedes, Felipe Martins, Miranda, Vitor Fernandes Oliveira & Alves, Marccus, 2022, Diversity and distribution of Lentibulariaceae in Bahia state, Brazil: implications for phytogeography and conservation, Phytotaxa 556 (3), pp. 213-255 : 235

2.14. Utricularia juncea Vahl , Enumeratio Plantarum 1: 202 (1804). [ Figs. 1 and 6X ].

Terrestrial or helophyte. Aerial linear leaves. Slender and flexible scape. Basifixed and free bracts and bracteoles, entire margins. Ascending pedicels in fruits. Sepals with conspicuous and prominent/ridged nerves, plan and entire margins. Yellow corolla, non-gibbous palate, galeate lower lip, straight to slightly curved and acute spur, shorter than and perpendicular to the lower lip. Longitudinally dehiscing capsule.

Selected material:— Alcobaça, 12 Km N on road between Alcobaça and Prado , 19 March 1984, fl. and fr., R.M. Harley 17975 ( CEPEC) ; Belmonte , 26 km S da cidade, 07 January 1981, fl. and fr., A.M. de Carvalho 475 ( CEPEC, R) ; Cairu, Beira da estrada BA 884, 24 November 2013, fl. and fr., P.C. Baleeiro 364 ( SPF) ; Camaçari, Arembepe , 04 February 2006, fl. and fr., D. Cardoso 1127 ( HUEFS) ; Canavieiras , 29 June 1996, fl. and fr., J.A. de Jesus 545 ( CEPEC) ; Entre Rios, Subauma , 20 April 2002, fl., M.L. Guedes 9552a ( ALCB) ; Ilhéus, 18 km S on road from Olivença to Una , 21 April 1981, fl. and fr., S.A. Mori 13698 ( CEPEC, NY) ; Itacaré , Fazenda das Bromélias, 17 March 2006, fl. and fr., J.S. Santana 45 ( ALCB) ; Lamarão do Passé, Caraíba Metais , 18 December 2004, fl. and fr., M.L. Guedes 11396b ( ALCB) ; Maraú, Estrada entre Itacaré e Maraú BR 030, 05 November 2017, fl. and fr., F.M. Guedes 98 ( UFP) ; Mata de São João , 18 January 2003, fl. and fr., F. Rivadavia 1522 ( SPF) ; Santa Luzia, estrada entre Una e Santa Luzia BA 270, 02 November 2017, fl. and fr., F.M. Guedes 89 and 91 ( UFP) .

Comments:— Utricularia juncea can be confused with U. erectiflora (see comments section in this species), U. laxa and U. nana , but it differs from U. laxa by its sepals with conspicuous and prominent/ridged nerves (vs. sepals with inconspicuous nerves); and from U. nana by both of its sepals with prominent nerves and margins non-auriculate (vs. only the upper sepal with prominent nerves, margins auriculate). In Bahia state, this species is found only in areas of restinga.

Figures

FIGURE 1. Distribution of Lentibulariaceae species in Bahia state.

FIGURE 6. A. Genlisea aurea; B. G. exhibitionista; C. G. filiformis; D. G. guianensis; E. G. lobata; F. G. repens; G. G. tuberosa; H. G. uncinata; I. Utricularia adpressa; J–K. U. amethystina; L–M. U. blanchetii; N. U. breviscapa; O. U. costata; P. U. cucullata; Q. U. erectiflora; R. U. flaccida; S. U. foliosa; T. U. gibba; U. U. guyanensis; V. U. hydrocarpa; W. U. jamesoniana; X. U. juncea; Y. U. laxa. (Photos A by J.C. Zamora; B by C. Rohrbacher; C by Z. Miranda; D, E, G, H by P.M. Gonella; F, Y by H. Dolsan; I–M, Q, R, U, X by F.M. Guedes; N, O by J. Fabricante; P by M. Hopkins; S. by Y. Canalli; T by A. Nepomuceno; V by G.S. Garcia; W by Y. Gouveia).