The Genus Bertolonia (Melastomataceae) In The State Of Bahia, Brazil Author Bisewski, Gessica C. A. 0000-0002-4357-8449 gebisewski @ gmail. com; https: // orcid. org / 0000 - 0002 - 4357 - 8449 gebisewski@gmail.com Author Bacci, Lucas F. 0000-0001-5825-9216 Florida Museum of Natural History, University of Florida, Gainesville, Florida 32611, USA & lucasfbacci @ gmail. com; https: // orcid. org / 0000 - 0001 - 5825 - 9216 lucasfbacci@gmail.com Author Amorim, André M. 0000-0003-0712-3321 Herbário CEPEC, Centro de Pesquisas do Cacau, Postal Code 07, Itabuna, Bahia, 45600 - 970, Brazil & Departamento de Ciências Biológicas, Universidade Estadual de Santa Cruz, Ilhéus, Bahia, 45622 - 900, Brazil & amorim. uesc @ gmail. com; https: // orcid. org / 0000 - 0003 - 0712 - 3321 amorim.uesc@gmail.com Author Goldenberg, Renato 0000-0002-7047-6720 renato. goldenberg @ gmail. com; https: // orcid. org / 0000 - 0002 - 7047 - 6720 renato.goldenberg@gmail.com text Phytotaxa 2022 2022-05-31 548 2 153 183 journal article 61599 10.11646/phytotaxa.548.2.3 25e22166-d222-4d60-a981-4cf1bc25d4bd 1179-3163 6597678 2. Bertolonia angustipetala Bacci & R. Goldenberg (in Bacci et al . 2018: 271 ). Figures 2b , 4 . FIGURE 4. Bertolonia angustipetala . A. Fertile branch. B. Trichomes on the petiole. C. Leaf base, abaxial surface. D. Short-stalked glandular trichomes on the abaxial leaf surface. E. Leaf apex, abaxial surface [A, C, E: Jardim 5040 ; B, D: Goldenberg 2077 ]. Herbs ca. 20 cm tall, terrestrial or epiphytic. Stem 2–3 mm wide, rounded, moderately glandulose-punctate (trichomes less than 0.1 mm long). Leaves opposite; petioles 1–2.2 cm long, quadrangular, moderately glandulose-punctate and sparsely glandulose-pilose (trichomes ca. 0.5 mm long); blades 3.9–8 × 1.8–3.7 cm , flat, elliptic, base rounded to shortly attenuate, apex acute, margins entire, sparsely ciliate, adaxial surface dark green, sparsely glandulose-punctate (trichomes less than 0.1 mm long, brownish), abaxial surface vinaceous, sparsely to moderately glandulose-punctate (trichomes less than 0.1 mm long, brownish), main veins 3, plus two pairs that do not reach the leaf apex, basal. Inflorescences terminal, 6–17 cm long ( 6.3–8.7 cm long in infructescences), branches sparsely to densely glandulosepunctate, sparsely glandulose-punctate when old. Bracts not seen; bracteoles ca. 1 mm long, narrow-lanceolate, apex acute, both surfaces glandulose-punctate. Hypanthium 4–5 × 3.5–4 mm , short-terete, glandulose-punctate and glandulose-villose. Sepals elliptic, apex rounded to acute, margins entire, ciliate, both surfaces glandulose-punctate and glandulose-villose. Petals 7–8.5 × 1.5–2 mm , light pink, linear-lanceolate, base slightly uncinate, apex apiculate, the apiculum ca. 1 mm long, with a caducous gland head, margins entire, eciliate, both surfaces papillose, otherwise glabrous. Stamens 7–8 mm long; filaments 3.5–4 mm long; anthers 3.5–4 mm long, cream colored, oblong-subulate, surface smooth undulate, pore rounded, non-thickened margins, introrse; connective shortly prolonged (ca. 0.5 mm ), unappendaged. Style 5–7 mm long, straight or curved at the apex, glabrous. Fruits ca. 0.6 × 0.8 cm . Seeds reniform. Examined material: — BRAZIL . Bahia : Wenceslau Guimarães, Bacci 26 7 ( UEC !); Goldenberg 20 77 ( HURB !, UPCB !); Jardim, J.G. 5040 ( CEPEC !, NY , UPCB !). Conservation Status: — Bertolonia angustipetala has an EOO of 0.010 km ² and AOO of 0.035 km ², and should be classified as “Critically Endangered” (CR), following IUCN (2017) categories. This species has been collected only three times within the “Estação Ecológica Estadual Wenceslau Guimarães”. Notes: — Bertolonia angustipetala is endemic to Bahia , occurring in montane rainforests ( Fig. 3b ). Collected with flowers in December and fruits in May and December. Bertolonia angustipetala is characterized by the small (3.9–8 × 1.8–3.7 cm ) and elliptic leaf blades, these sparsely glandulose-punctate, and linear-lanceolate and apiculate petals. It shares with Bertolonia cuspidata Bacci & Amorim in Bacci et al . (2018: 772) the membranaceous, glandulosepunctate leaf blades with entire margins. However, Bertolonia angustipetala differs by the smaller leaf blades (3.9–8 × 1.8–3.7 cm ) with an acute apex ( vs. bigger leaf blades,7.3–12.2 × 3.9–6 cm , with a cuspidate apex in B. cuspidata ) and linear-lanceolate petals ( vs. elliptic or obovate petals; Bacci et al . 2018 ). For more details, see notes under B. angustipetala in Bacci et al . (2018) and Table 1 .