Genlisea aurea A.St.-Hil.

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 : 226

1.1. Genlisea aurea A.St.-Hil. , Voyage dans le District des Diamans 2: 429 (1833). [ Figs. 1 and 6A ].

Terrestrial or helophyte. Scape, bracts, bracteoles, pedicels and sepals covered with long-stalked glandular trichomes. Thick, succulent and slightly stiff scape. Ascending pedicels in fruits. Yellow corolla, darker yellow and gibbous palate, glabrous lips, trilobed lower lip, glandular and acute spur, as long as or longer than and parallel to the lower lip. Circumscissile capsule, covered with long-stalked glandular trichomes.

Selected material:— Abaíra , Campo de Ouro Fino , 23 March 1992, fl. and fr., T. Laessoe & T. Silva H 53311 ( CEPEC, HUEFS, K, RB, SPF); Água Quente , Pico das Almas, 16 December 1988, fl., R.M. Harley 27267 ( CEPEC, SPF) ; Mucugê , 20 July 1981, fl. and fr., A.M. Giulietti 1603 ( SPF) ; Palmeiras , trilha p/ a cachoeira da Fumaça, 20 July 2005, fl., F. Rivadavia 2087 ( SPF) ; Piatã , brejos ao redor do cruzeiro subindo a Serra do Santana, 27 July 1995, fl. and fr., F. Rivadavia 484 ( SPF) ; Rio de Contas , Serra da Mesa, 18 July 2005, fl. and fr., F. Rivadavia 2076 ( SPF) .

Comments:— Genlisea aurea can be readily distinguished from the other yellow flowered congeners in Bahia by its thick and succulent scape, and scape, bracts, bracteoles, pedicels and sepals covered exclusively with longstalked glandular trichomes. There are two recognized varieties, G. aurea var. minor Fleischmann (2012: 525) differs from G. aurea var. aurea by its longer pedicels (8–25 mm in anthesis and up to 30 mm in fruits), lax inflorescence and spur longer than the lower corolla lip (vs. shorter pedicels [5-8 mm in antheis and up to 10 mm in fruits], congest inflorescence and spur as long as the lower corolla lip). Apparently, there is no clear boundaries between populations throughout the Chapada Diamantina highlands, G. aurea var. aurea is found in the municipalities of Abaíra, Catolés, Mucugê, Palmeiras (Fumaça Waterfall), Piatã and Rio de Contas, while G. aurea var. minor is found in Abaíra, Catolés, Água Quente (Pico das Almas) and Mucugê.

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).