Uvariopsis zenkeri Engl., Notizbl. Koenigl. Bot. Gart. Berlin 2: 298 1899
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 zenkeri

description: Uvariopsis zenkeri Engl., Notizbl. Königl. Bot. Gart. Berlin 2: 298, 1899 Figs 139, 140; Map 17A Type. Cameroon. South Region; Bipindi, <i>Zenker G.A. 1117</i>, 1896: holotype: B[B 10 0153124]; isotypes: BM[BM000554075]; GOET[GOET005734]; HBG[HBG502515]; P[P00362604, P00362603]; K[K000199042]; M[M0107936]; S[S07-11029]; WU[WU0025790] Description. Shrub to tree, 2-7 m tall, d.b.h. 1.5-11 cm; stilt roots or buttresses absent. Indumentum of simple hairs; old leafless branches glabrous, <b>young foliate branches densely pubescent</b>. Leaves: petiole 2-5.5 mm long, 1-2 mm in diameter, <b>densely to sparsely pubescent</b>, grooved, blade inserted on top of the petiole; blade 11-15.8 cm long, 3.5-5.8 cm wide, elliptic to obovate, <b>apex long acuminate, acumen 1-2.4 cm long</b>, base acute to decurrent, papyraceous, above glabrous when young and old, below glabrous when young and old; midrib sunken or flat, above glabrous when young and old, below pubescent when young, glabrous when old; secondary veins 6 to 13 pairs, glabrous above and below; tertiary venation reticulate. Individuals unisexual, monoecious; inflorescences cauliflorous or ramiflorous on old leafless branches, axillary. Flowers with 6 perianth parts in 2 whorls, globose in bud, 1 per inflorescence, <b>male and female inflorescences similar; pedicel 0</b> - <b>7 mm long</b>, 1-1.5 mm in diameter, <b>densely pubescent</b>; in fruit ca. 10 mm long, 2-3 mm in diameter, glabrous; bracts 1 to 2, all basal 1-4 mm long, 2.5-5 mm wide; sepals 2, valvate, basally fused, 3-7 mm long, 4.5-7 mm wide, circular, apex obtuse, base truncate, brown, densely pubescent outside, glabrous inside, margins flat; petals 4, <b>basally fused</b>, tube 1-4 mm long, 6-13 mm long, 4-7 mm wide, triangular, apex acute, base truncate, greenish-white, margins flat, densely pubescent outside, glabrous inside; male flowers: stamens 100 to 150, in 10 to 12 rows, 0.5 mm long, broad; connective reduced or absent, glabrous, pinkish red; staminodes absent; female flowers: carpels free, 13 to 22, ovary 1.5-3 mm long, 1-1.5 wide, stigma coiled, densely pubescent. Monocarps stipitate, stipes ca. 1 mm long, ca. 2 mm in diameter; monocarps 1 to 3, ca. 37 mm long, ca. 17 mm in diameter, cylindrical, apex rounded, <b>tomentose, bumpy when dry</b>, green when ripe; seeds 10 to 12 per monocarp, ca. 13 mm long, ca. 7 mm in diameter, ellipsoid; aril absent. Distribution. endemic to Cameroon; known from the South, Littoral and South-West regions. Habitat. In lowland primary or old secondary rain forests. Altitude 0-700 m a.s.l. Local and common names known in Cameroon. None recorded. IUCN conservation status. Vulnerable (VU). (Texier and Stévart 2021b). Uses in Cameroon. None reported. Notes. <i>Uvariopsis zenkeri</i> closely resembles <i>U. congensis</i>. See notes under the latter species. Specimens examined. <b>Littoral Region</b>: Ebo Forest proposed National Park Ebo Forest Research Station-Bekob, 4.36°N, 10.41°E, <i>27 October 2006</i>, <i>Osborne J.</i> 200 (K). <b>South Region</b>: Bipindi, 3.26°N, 10.20°E, <i>20 June 1918</i>, <i>Annet E.</i> 351 (P); Campo Ma’an National Park 11 km on trail from Ebinanemeyong village on road 7 km from Nyabessan to Campo town, 2.47°N, 10.34°E, <i>14 February 2015</i>, <i>Couvreur T.L.P.</i> 707 (WAG,YA); Efoulan, 2.74°N, 10.53°E, <i>25 April 2000</i>, <i>Tchouto Mbatchou G.P.</i> 2846 (KRIBI,WAG); Campo-Ma’an area Mamelles Massif, 2.56°N, 9.949°E, <i>23 April 2001</i>, <i>Tchouto Mbatchou G.P.</i> 3252 (KRIBI,WAG); Bipindi, 3.08°N, 10.42°E, <i>1896</i>, <i>Zenker G.A.</i> 1117 (K,L,P); Bipindi, 3.08°N, 10.42°E, <i>01 January 1904</i>, <i>Zenker G.A.</i> 3045 (K,L,P,WAG); Bipindi, 3.08°N, 10.42°E, <i>01 January 1904</i>, <i>Zenker G.A.</i> 3228 (L); Bipindi, 3.08°N, 10.41°E, <i>01 March 1914</i>, <i>Zenker G.A.</i> 515 (U,WAG). <b>South-West Region</b>: on trail leading to top of Mt Etinde after Ekonjo village, 4.06°N, 9.153°E, <i>01 April 2016</i>, <i>Couvreur T.L.P.</i> 1027 (WAG,YA); on top of hill near Small Ekombe village 3 km after Kumba on road to Ekondo Titi town, 4.62°N, 9.374°E, <i>13 January 2016</i>, <i>Couvreur T.L.P.</i> 978 (WAG,YA); Mokoko Forest Reserve Dikome, 4.48°N, 9.033°E, <i>05 May 1994</i>, <i>Ekema S.N.</i> 944 (K); Mount above Batoke, 4.08°N, 9.083°E, <i>24 April 1984</i>, <i>Thomas D.W.</i> 3455 (BR,LBV,MO,P,WAG,YA); Takamanda Forest Reserve, 6.21°N, 9.433°E, <i>30 April 1987</i>, <i>Thomas D.W.</i> 7372 (MO,P,WAG).
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 438-440, DOI: 10.3897/phytokeys.207.61432
description: {"references": ["Texier, N, Stevart, T, 2021b. Uvariopsis zenkeri. The IUCN Red List of Threatened Species: e.T133046133A133046192. https://doi.org/10.2305/IUCN.UK.2021-3.RLTS.T133046133A133046192.en"]}