Drosera affinis Oliv.
Creators: name: Rjosk, A.
name: Neinhuis, C.
name: Monizi, M.
name: Lautenschläger, T.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Caryophyllales
Droseraceae
Drosera
Drosera affinis

description: 1. <i>Drosera affinis</i> Welw. ex Oliv. — Fig. 3 <i>Drosera affinis</i> Welw. ex Oliv. (1871) 402; Diels (1906) 88; J.R. Laundon (1959) 4; (1970) 27; (1978) 66; A.S.Rob. et al. (2017) 1318. <i>—</i> Type: <i>F.M.J. Welwitsch 1183</i> (holo LISU), Angola, Distr. Huilla, Lopolo, Jan.1860. Perennial herb, caulescent. <i>Stems</i> mostly short, up to 10 cm high (Fig. 3b). <i>Leaves</i> up to 9 cm long (petiole and lamina), alternate to spirally arranged, clustered, densely arranged, mostly erect, old leaves reflexed; stipules 0.3–1 cm long, ferrugineous, apex lacerated; lamina narrowly spathulate or obovate, 1.5–3 by 0.2–0.5 cm, apex obtuse, gradually narrowing from the apex downwards, bearing tentacles adaxially and around the mar- gins, glabrous or sparsely pilose abaxially (Fig. 3a); petiole 3–7 cm long (2–5 times as long as lamina), slender, glabrous or sparsely pilose. <i>Inflorescences</i> cymose, with 3–13 flowers; peduncles 1–3 together; 8–35 cm long, arising laterally from the stem, slightly curved at the base or erect, glabrous, canaliculate; bracts linear to elliptic, 3–5 mm long, caducous; pedi- cels 2–10 mm long, glabrous or sparsely pilose (sometimes glandular). <i>Sepals</i> 5, oblong to lanceolate, 3–7 by 1.5–2 mm, connate at the base, sparsely pilose. <i>Petals</i> 5, elliptic to ob- ovate, 5–8 mm long, apex obtuse, pale pink to purple. <i>Stamens</i> 5, filaments c. 5 mm long and pink. <i>Pollen</i> in tetrads, yellow, tetrads c. 35–55 µm diam, single grains c. 23–30 µm diam, echinate (Fig. 3e), echini ± conical, c. 2 µm long, medium density of echini, short gemmate to clavate sculptural elements between echini. <i>Pistil</i>: ovary subglobose, glabrous; styles 3, c. 2.5 mm long, 2-partite to the base, arms filiform. <i>Seeds</i> fusiform, 0.7–0.9 by c. 0.2 mm, testa reticulate. Distribution — Angola, Congo, DRC, Malawi, Mozambique, Namibia, Tanzania, Zambia, Zimbabwe (Fig. 3c). Habitat &amp; Ecology — Wet meadows, swamps, perennially wet places in seasonally dry wet-savannahs. <i>Additional specimens</i> (see Fig.3d for province map). ANGOLA, <i>Bié</i>, Camacupa, Cuemba, quedas, alt. 1200 m, 6 Oct. 1965, <i>Teixeira &amp; Matos 8995</i> (BR); <i>Huíla</i>, Huíla, Oct. 1898, <i>E. Dekindt 466</i> (BR); Na margem di rio Nene, a montante da ponte, junto da Estrada de Huíla para Jau, 17 Dec. 1955, <i>E.J. Mendes 1144</i> (COI); Sà da Bandeira, na subida para o miradouro da Tundavale, nos lugares enchrcados, 13 Oct. 1969, <i>F. Murta &amp; M. Silva 799</i> (COI); <i>Lunda Sul</i>, Dala, margem do rio Chiumbe,1927, <i>Carrisso &amp; Mendon ҫa 564</i> (COI); Dala, rio Chiumbe, lugares húmidos, alt. 1200 m, 23 Apr. 1937, <i>A.W. Exell &amp; F.A. Mendon ҫa 1087</i> (COI); <i>Moxico</i>, quedas de Dala, 17 Aug. 1965, <i>R. Mendes dos Santos 1658</i> (COI). – DRC, <i>Haut-Katanga</i>, Kaziba, Terr. Manono, Parc national de le Upemba, alt. 1500 m, 16 Feb. 1948, <i>G.F. de Witte 3383</i> (BR).
description: Published as part of <i>Rjosk, A., Neinhuis, C., Monizi, M. &amp; Lautenschläger, T., 2022, Synopsis of the genus Drosera (Droseraceae) in Angola and the Democratic Republic of the Congo, pp. 1-14 in Blumea - Biodiversity, Evolution and Biogeography of Plants 67 (1)</i> on pages 4-5, DOI: 10.3767/blumea.2022.67.01.03, http://zenodo.org/record/7679465
description: {"references": ["Diels L. 1906. Droseraceae. In: Engler A (ed), Das Pflanzenreich IV. 112. Engelmann, Leipzig.", "Laundon JR. 1959. Droseraceae. In: Hubbard CE, Milne-Redhead E (eds), Flora of Tropical East Africa. Crown Agents for Oversea Governments and Administrations, London."]}