Uvariopsis pedunculosa Robyns &amp; Ghesq., Ann. Soc. Sci. Bruxelles, Ser. B 53: 321 1933
Creators: name: Couvreur, Thomas L. P.
name: Dagallier, Leo-Paul M. J.
name: Crozier, Francoise
name: Ghogue, Jean-Paul
name: Hoekstra, Paul H.
name: Kamdem, Narcisse G.
name: Johnson, David M.
name: Murray, Nancy A.
name: Sonke, Bonaventure
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Magnoliales
Annonaceae
Uvariopsis
Uvariopsis pedunculosa

description: Uvariopsis pedunculosa (Diels) Robyns &amp; Ghesq., Ann. Soc. Sci. Bruxelles, Ser. B 53: 321 1933 Figs 136, 137; Map 16F ≡ Tetrastemma pedunculosum Diels, Bot. Jahrb. Syst. 53(3-5): 441. 1915. = Uvariopsis vanderystii Robyns &amp; Ghesq., Ann. Soc. Sci. Bruxelles, Ser. B 53: 64, 1933. Syn. nov. Type. Democratic Republic of the Congo. Bandundu; Kikwit, Vanderyst H. 9973, 1921: holotype: BR[BR0000008824387]. Type. Cameroon. South Region, Bipindi, <i>Zenker G.A. 3868</i>, Mar 1906: B[B 10 0153122]; isotypes: BM[BM000554078]; BR[BR0000008824196, BR0000008824226]; HBG[HBG502486]; K[K000199041]; M [M0107937]; P[P00362599, P00362601]; US [US 00098850]. Description. Shrub to tree, 3-8 m tall, d.b.h. 1.5-5 cm; stilt roots or buttresses absent. Indumentum of simple hairs; old leafless branches glabrous, young foliate branches glabrous to pubescent. Leaves: petiole 2-3 mm long, 1-3 mm in diameter, pubescent, slightly grooved, blade inserted on the side of the petiole; blade 17.2-29 cm long, 5.7-11 cm wide, elliptic to obovate, apex acuminate, acumen 0.3-2.3 cm long, base acute, coriaceous, below glabrous when young and old, above glabrous when young and old; midrib sunken or flat, above glabrous when young and old, below glabrous when young and old; secondary veins 8 to 15 pairs per side, glabrous above; tertiary venation reticulate. Individuals unisexual, monoecious; inflorescences cauliflorous. Flowers with 9 perianth parts in 2 whorls, <b>globose in bud</b>, 1 to 5 per inflorescence, male and female inflorescences dimorphic; male pedicels 25-130 mm, 1-2 mm in diameter, sparsely pubescent to glabrous; bracts 2, one basal and one upper towards the lower half of pedicel, both bracts 1.5 mm long, ca. 2 mm wide; <b>female pedicels 80-320 mm</b> long, 2-4 mm in diameter; in fruit mm long, mm in diameter; bracts 2, one basal and one upper towards the lower half of pedicel, both bracts 2.5-6 mm long, 5-6 mm wide; male sepals 2, valvate, basally fused, 7 mm long, 7 mm wide, very broadly ovate, apex acute, base truncate, brown, pubescent outside, glabrous inside, margins flat; female sepals 2, valvate, basally fused, 7-17 mm long, 13-15 mm wide, very broadly ovate, apex acute, base truncate, fleshy, brown, pubescent outside, glabrous inside, margins flat; male petals 4, <b>basally fused</b>, tube ca. 3 mm long, 10-15 mm long, 8-10 mm wide, broadly ovate to broadly elliptic, apex acute, base truncate, wine-brown outside, white cream inside, margins flat, shortly tomentose outside, glabrous inside; female petals 4, <b>basally fused</b>, tube 2.5-3 mm long, 14-16 mm long, 8-12 mm wide, broadly ovate, apex acute, base truncate, fleshy, wine-brown outside, white cream inside, margins flat, pubescent outside, glabrous inside; male flowers: stamens 150 to 250, in 10 to 12 rows, ca. 1 mm long, oblong; connective reduced or absent, glabrous, cream; staminodes absent; female flowers: carpels free, 50 to 140, ovary 2-4 mm long, stigma globose, glabrous. Monocarps sessile, 4 to 9, 10-17 mm long, 7-11 mm in diameter, cylindrical, apex rounded, sparsely pubescent, verrucose, longitudinally 1 ribbed, brown when ripe; seeds 6 to 10 per monocarp, 7-10 mm long, 5-7 mm in diameter; aril absent. Distribution. A central African species from Cameroon, Equatorial Guinea Gabon and Democratic Republic of the Congo; in Cameroon known from South, South-West and Littoral regions. Habitat. In primary or secondary lowland rain forests. Altitude: 200-1100 m a.s.l. IUCN conservation status. assessed under the name <i>U. vanderystii</i>, Least Concern (LC) (Cheek 2014e). Uses in Cameroon. None reported. Notes. <i>Uvariopsis pedunculosa</i> is easily distinguished in flower by the combination of globose flower buds and basally fused petals. Le Thomas (1969b) had not seen any fruiting material of the species (as <i>U. vanderystii</i>), but it has since become available. <i>Uvariopsis pedunculosa</i> was placed in synonymy with <i>U. dioica</i> in the second edition of the Flora of West Tropical Africa (Keay 1952). However, after careful examination of the type materials of both names, we conclude that <i>U. pedunculosa</i> is in fact conspecific with <i>U. vanderystii</i>. Indeed, the type of <i>U. pedunculosa</i> (<i>Zenker 3868</i>) has long flowering pedicels (up to 130 mm) and clearly globose flowers (as seen in the BR specimen [BR0000008824226]), while <i>U. dioica</i> has pedicels up to 50 mm long and ovoid-conical flower buds (Robyns and Ghesquière 1933; Kenfack et al. 2003). Given the priority rule, the name <i>U. pedunculosa</i> (1915, as <i>Tetrastemma pedunculosum</i> Diels) should be retained over <i>U. vanderystii</i> (1933). Specimens examined. <b>Littoral Region</b>: Mapubi 30 km before Edea on Yaoundé-Edea road On forestry road 5 km direction to Sanaga river, 3.84°N, 10.38°E, <i>28 February 2018</i>, <i>Couvreur T.L.P.</i> 1173 (MPU,P,WAG,YA). <b>South Region</b>: Elephant Mont, 2.79°N, 10.02°E, <i>16 October 2001</i>, <i>Tchouto Mbatchou G.P.</i> ELEX_15 (WAG); Campo-Ma’an area Onoyong, 2.52°N, 10.69°E, <i>18 March 2001</i>, <i>Tchouto Mbatchou G.P.</i> ONOX_182 (WAG); Campo-Ma’an area Onoyong, 2.52°N, 10.69°E, <i>18 March 2001</i>, <i>Tchouto Mbatchou G.P.</i> ONOX_274 (WAG); Campo-Ma’an area Mamelles Massif, 2.56°N, 9.949°E, <i>23 April 2001</i>, <i>Tchouto Mbatchou G.P.</i> 3242 (KRIBI,WAG); Bipindi, 3.08°N, 10.41°E, <i>01 January 1909</i>, <i>Zenker G.A.</i> 3868 (B,BM,BR,K,L,P). <b>South-West Region</b>: on forest trail north of Ngomboku village, 4.91°N, 9.724°E, <i>06 April 2016</i>, <i>Couvreur T.L.P.</i> 1063 (WAG,YA); on forest trail north of Ngomboku village, 4.91°N, 9.730°E, <i>06 April 2016</i>, <i>Couvreur T.L.P.</i> 1066 (WAG,YA); on trail through palm oil plantation 3 km before lava flow and Seme Beach hotel when coming from Limbe, 4.07°N, 9.085°E, <i>18 October 2013</i>, <i>Couvreur T.L.P.</i> 517 (WAG,YA); Ajang saprophyte plot, 4.76°N, 9.683°E, <i>01 December 1999</i>, <i>Gosline W.G.</i> 244 (K,MO,P,WAG,YA); Crète du Nta Ali (1266 m) entre côtes 1009 et 1202 30 km SE Mamfe, 5.59°N, 9.502°E, <i>19 June 1975</i>, <i>Letouzey R.</i> 13849 (P,YA); Likomba-Pflanzung 15-35 km NE von Victoria [Limbe], 4.1°N, 9.333°E, <i>03 December 1928</i>, <i>Mildbraed G.W.J.</i> 10745 (B,K); Environs de Matene RF Takamanda 32 km SW Akwaya, 6.25°N, 9.372°E, <i>30 April 1987</i>, <i>Satabié B.</i> 873 (YA); Forest on the southern slope of Mount above Batoke, 4.08°N, 9.1°E, <i>29 December 1983</i>, <i>Thomas D.W.</i> 2756 (MO,YA); Takamanda Forest Reserve, 6.21°N, 9.433°E, <i>30 April 1987</i>, <i>Thomas D.W.</i> 7364 (P); Massif du Ntali crête sommitale 30 km SE Mamfe, 5.58°N, 9.510°E, <i>14 June 1982</i>, <i>Villiers J.-F.</i> 1427 (P,YA).
description: Published as part of <i>Couvreur, Thomas L. P., Dagallier, Leo-Paul M. J., Crozier, Francoise, Ghogue, Jean-Paul, Hoekstra, Paul H., Kamdem, Narcisse G., Johnson, David M., Murray, Nancy A. &amp; Sonke, Bonaventure, 2022, Flora of Cameroon - Annonaceae Vol 45, pp. 1-532 in PhytoKeys 207</i> on pages 427-431, DOI: 10.3897/phytokeys.207.61432
description: {"references": ["Cheek, M, 2014e. Uvariopsis vanderystii. The IUCN Red List of Threatened Species: e.T45422A3001751. https://doi.org/10.2305/IUCN.UK.2014-3.RLTS.T45422A3001751.en", "Le Thomas, A, 1969b. Annonacees. In: Aubreville, A, Ed., Flore du Gabon. Museum National d'Histoire Naturelle, Paris: 1 - 371", "Keay, RWJ, 1952. Revision of the \"Flora of West Tropical Africa\", I - Annonaceae. Kew Bulletin 7: 149 - 157, DOI: https://doi.org/10.2307/4109256", "Robyns, W, Ghesquiere, J, 1933. Essai de revision des genres Uvariopsis Engl. et Diels et Tetrastemma Diels (Annonacees). Annales de la Societe scientifique de Bruxelles, Serie B 53.", "Kenfack, D, Gosline, G, Gereau, RE, Schatz, GE, 2003. The genus Uvariopsis (Annonaceae) in tropical Africa with a recombination and one new species from Cameroon. Novon 13: 443 - 449, DOI: https://doi.org/10.2307/3393377"]}