Novelties in Randia L. (Gardenieae, Rubiaceae) from Brazil Author Borges, Rodrigo Lopes 0000-0003-0663-0153 Instituto de Pesquisas Jardim Botânico do Rio de Janeiro, 22470 - 180, Rio de Janeiro, Brazil rodrigolopesborges89@gmail.com Author Roque, Nádia 0000-0002-2103-917X Instituto de Biologia, Universidade Federal da Bahia, Rua Barão de Jeremoabo, s / n, Salvador, 40170 - 115, Bahia, Brazil nadiaroque@gmail.com Author Jardim, Jomar Gomes 0000-0002-5094-0514 Universidade Federal do Sul da Bahia, Campus Jorge Amado, Itabuna, 45600 - 923, BA, Brazil / Herbário CEPEC / CEPLAC. Km 29 Rod. BR 415, Ilhéus-Itabuna, Itabuna, 45604 - 811, BA, Brazil jjardim@ufsb.edu.br Author Salas, Roberto Manuel 0000-0001-7799-9017 Instituto de Botánica del Nordeste (UNNE-CONICET), Sargento Cabral 2131, cc. 209, CP 3400, Corrientes, Argentina robertoymanuels@gmail.com text Phytotaxa 2024 2024-04-18 645 1 43 54 http://dx.doi.org/10.11646/phytotaxa.645.1.4 journal article 301773 10.11646/phytotaxa.645.1.4 7e05136e-ea0f-46fd-99f4-ddad712dc3d3 1179-3163 13214848 Taxonomic Key to Brazilian species of Randia 1. Species with deciduous leaves, retaining only the fruits during the dry season; fruits muricate ............................. Randia muricata - Species with persistent leaves, occasionally deciduous; fruits with a smooth or wrinkled external surface, occasionally displaying lenticels..............................................................................................................................................................................................2. 2. Climbers, thorns curved; fruit oblong ......................................................................................................................... R. altiscandens - Shrubs or trees, thorns plane; fruit globose or ovoid.........................................................................................................................3. 3. Floral bud and corolla lobes with an acute or acuminate apex..........................................................................................................4. - Floral bud with rounded or obtuse apex, corolla lobes mostly rounded apex...................................................................................6. 4. Thorny branches; calyx lobes elliptic, oblong or obovate, pubescent on both faces .......................................................... R. armata - Branches facultatively armed; calyx lobes linear or narrowly triangular, glabrous, glabrescent, or ciliolate...................................5. 5. Species with restricted occurrence to Amazon; leaf blade broadly ovate 10–26 × 6–14 cm , glabrous, displaying a slightly rusty coloration after drying; male inflorescence bearing up to 4 flowers....................................................................... R. adolphoduckei - Species with restricted occurrence in the Atlantic Forest; leaf blade elliptic 9–17 × 3–7 cm , pubescent on the veins, displaying a darkened coloration after drying; male inflorescence bearing up to 3 flowers ............................................................. R. sulbahiana 6. Leaf blades abaxially velutinous-tomentose, vestiture more evident on veins, sometimes only veins with velutinous indument...... ...........................................................................................................................................................................................................7. - Leaf blades abaxially glabrous, pubescent or puberulous, veins with adpressed or patent hairs......................................................8. 7. Leaf blades bullate when fresh, olive green when dry; foliar indument grayish; 5–7 veins on each side; calyx lobes triangular, internally glabrous, externally strigose; corolla 21–28 mm long, externally glabrous ............................................. Randia itatiaiae - Leaf blades smooth when fresh, frequently blackish when dry, occasionally dark olive-green; foliar indument concolorous; 7–10 secondary veins on each side; calyx lobes variable in shape, even on the same plant, from narrowly ovate, narrowly obovate to linear, densely pubescent or hirsutulous on both faces; corolla 14–21 mm long, externally pubescent....................... Randia claesi 8. Leaf blades 17–24 × 7–11 cm ; male inflorescences 3–6 flora (except uniflora in R. hebecarpa ); fruits pendulous ........................... ................................................................................................................................................................................ Randia hondensis - Leaf blades 2–12(–15) × 1.2–4.1 cm ; male inflorescences 6–20 flora; fruits erect ..........................................................................9. 9. Male inflorescence cymose; calyx lobes elliptic to ovate; fruits pedicellate .................................................................... R. calycina - Male inflorescence fasciculate; calyx lobes linear, triangular to narrowly triangular; fruit sessile ................................................10. 10. Branches ascending, uniformly divergent at a 45° angle; leaves sessile or subsessile, mucronate (mucro 1–2 mm long); male inflorescences uniflora.................................................................................................................................................... R. hebecarpa - Branches horizontally or ascending, diverging at an angle greater than 45°; leaves petiolate; mostly without a mucro; male inflorescences more than the 6-flora ...............................................................................................................................................11. 11. Leaf blades with abruptly acuminate or frequently caudate apex; stipules shortly aristate; hypanthium and immature fruit lanuginose; calyx lobes linear or linear-elliptic, pubescent or hirsute on both face; corolla hirsute externally, more densely towards the throat........................................................................................................................................................................... R. pubiflora - Leaf blades acuminate, acute, obtuse, or rounded at the apex; stipule acute; without arista; calyx lobes triangular or narrowly triangular; corolla glabrous, puberulous or minutely pubescent externally ....................................................................................12. 12. Tertiary venation inconspicuous above; corolla 25–34 mm long; fruit 30–50 mm long, pericarp 1.2–3.5 mm thick, with woody consistence when dry.............................................................................................................................................................. R. ferox - Tertiary venation nitid above; corolla 11–15 mm long; fruit 15–20 mm long, pericarp ca. 1 mm thick, leathery when dry .........13. 13. Leaf blade widely elliptic, apex cuspidate, glabrous on both faces, mostly papery, occasionally subcoriaceous; domatia absent; female flower subsessile; fruit glabrous................................................................................................................................ R. nitida - Leaf blade elliptic; apex rounded or obtuse, rarely acute, puberulent on the inner surface; subcoriaceous to coriaceous; domatia in tuff of hairs; female flower pedunculate; fruit puberulous........................................................................................ R. venezuelensis