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

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 : 230

2.2. Utricularia amethystina Salzm. ex A.St.-Hil. & Girard , Comptes Rendus Hebdomadaires des Séances de l’Académie des Sciences 7: 870 (1838). [ Figs. 1 and 6 J-K].

Terrestrial or helophyte. Aerial spatulate leaves. Slender and flexible scape. Basifixed and basally connate bracts and bracteoles, margins. Ascending pedicels in fruits. Sepals with conspicuous but non-prominent nerves, plan and entire margins, hyaline on the upper sepal. Lilac or white corolla, white and yellow gibbous palate, trilobed lower lip, straight and acute spur, constricted at the middle, twice as long as and parallel to the lower lip. Bivalvate capsule.

Selected material:— s.l., 1830, fl., P. Salzmann s.n. (P, K, R, original material); Abaíra, Catolés , Garimpo do Bicota , 02 March 1992, fl. and fr., B. Stannard H51699 ( CEPEC, HUEFS, K, NY, SPF); Barra da Estiva , 19 July 1981, fl. and fr., A.M. Giulietti 1338 ( SPF) ; Belmonte, Estrada Belmonte–Itapebi km 33, 13 August 1981, fl. and fr., H.S. Brito & S.G. da Vinha 112 ( CEPEC) ; Cairu , 14 September 1993, fl. and fr., M.L. Guedes s.n. ( ALCB) ; Camaçari , estrada da CETREL, 06 September 1999, fl. and fr., G.L. Campos & R.M.O. Alves 112 ( HRB) ; Canavieiras, Estrada entre Santa Luzia e Canavieiras km 41, 18 July 2006, fl. and fr., J. Paula-Souza 6161 ( ESA, HPL) ; Ituberá, Mata de Burunganga , 15 September 2006, fl. and fr., M.L. Guedes 12653 ( ALCB) ; Maraú, Estrada sentido Itacaré / Maraú , 07 August 2005, fl. and fr., J.L. Paixão 560 ( CEPEC) ; Mata de São João, Km 94 da rodovia do Coco BA-099, próx. à praia de Massarandupió , 18 January 2003, fl. and fr., F. Rivadavia 1523 ( SPF) ; Piatã, Margem do Rio Veloso em direção ao Morro , 15 July 2005, fl. and fr., V.F.O. de Miranda 1260 ( JABU) ; Rio de Contas , PARNA da Chapada Diamantina, Serra das Almas , 06 July 2015, fl. and fr., P.C. Baleeiro 378 ( SPF) ; Santa Luzia, estrada entre Santa Luzia–Una , 02 September 2017, fl. and fr., F.M. Guedes 85 and 87 ( UFP) .

Comments:— Utricularia amethystina can be confused with U. tricolor , but it differs by its trilobed lower corolla lip, straight and acute spur, constricted at the middle, twice as long as the lower lip, and hyaline margins only on the upper sepal (vs. entire to 3-crenate lower lip, curved and obtuse or emarginate spur, as long as or longer than the lower lip, and hyaline margins on both sepals). In Bahia state, this species is found in campos rupestres and restingas.

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).