Meiocarpidium oliverianum D. M. Johnson &amp; N. A. Murray, PhytoKeys 97: 221 2018
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
Meiocarpidium
Meiocarpidium oliverianum

description: Meiocarpidium oliverianum (Baillon) D.M.Johnson &amp; N.A.Murray, PhytoKeys 97: 221, 2018 Figs 44, 45; Map 6B ≡ Unona oliveriana Baillon, Adansonia 8: 307, 1868; Unona lepidota Oliv. Fl. Trop. Afr. 1: 36, 1868; Meiocarpidium lepidotum (Oliv.) Engl. &amp; Diels, Notizbl. Königl. Bot. Gart. Berlin 3: 55, 1900. = Uvaria zenkeri Engl., Notizbl. Königl. Bot. Gart. Berlin 2: 293, 1899. Type. Cameroon. South Region, Bipindi, Zenker G.A. 1864, 1896: lectotype, here designated: K[K000198806]; isolectotypes: K[K000198807]; HBG[HBG502509, HBG502510]; WU[WU0025880, WU0025879]. Type. Equatorial Guinea. Rio Muni; Muni River, <i>Mann G. 1774</i>, Aug 1862: lectotype, sheet here designated: K[K000795931]; isotypes: K[K000795932]; P[P00362615]. Description. Tree, 8-20 m tall, d.b.h. 20 cm; stilt roots or buttresses absent. <b>Indumentum of peltate scale-like hairs</b>; old leafless branches glabrous, young foliate branches pubescent. Leaves: petiole 9-11 mm long, 2 mm in diameter, pubescent, grooved, blade inserted on top of the petiole; blade 15-20 cm long, 5-7 cm wide, oblong to obovate, apex acuminate to acute, acumen 1-2 cm long, base decurrent to acute, coriaceous, <b>below densely pubescent when young giving a silvery color</b>, pubescent when old, above glabrous when young and old, <b>discolorous, whitish below</b>; midrib impressed above, above glabrous when young and old, below pubescent when young and old; secondary veins 13 to 17 pairs, glabrous below; tertiary venation reticulate. Individuals bisexual; inflorescences ramiflorous on old or young foliate branches, leaf opposed. Flowers with 9 perianth parts in 3 whorls, 1 per inflorescence; pedicel 20-30 mm long, 1-2 mm in diameter, densely pubescent; in fruit 20-30 mm long, 2-3 mm in diameter, pubescent; bracts 2, one basal and one upper towards the upper half of pedicel, basal bract 8-9 mm long, 1 mm wide; upper bract 2-3 mm long, 1 mm wide; sepals 3, valvate, free, 2-3 mm long, 1-2 mm wide, triangular, apex acute, base truncate, green, pubescent outside, densely pubescent inside, margins flat; petals free, sub equal; outer petals 3, valvate, 15-25 mm long, 10-15 mm wide, ovate, apex acute, base truncate, cream, margins flat, densely pubescent outside, pubescent inside; inner petals 3, valvate, 15-25 mm long, 5-10 mm wide, ovate, apex acute, base narrowed into a claw 3-5 mm long, cream, margins flat, pubescent outside, glabrous inside; stamens 90 to 100, in 5 to 6 rows, 3-4 mm long, broad; connective discoid, glabrous, cream; staminodes absent; carpels free, 3 to 5, ovary 7-8 mm long, stigma capitate, pubescent. <b>Monocarps sessile, 3 to 4</b>, 40-60 mm long, 20-30 mm in diameter, cylindrical, apex rounded to apiculate, pubescent, smooth, <b>silver-green when ripe</b>; seeds 14 to 16 per monocarp, 10-20 mm long, 5-10 mm in diameter, flattened ellipsoid to oblong; aril absent. Distribution. Known from Cameroon, Equatorial Guinea Gabon and Republic of Congo, one collection for the Democratic Republic of Congo; in Cameroon known from East, South, Littoral and Central regions. Habitat. A frequent species when present; growing on swampy, periodically inundated or well-drained soils, in primary or secondary forests, sometimes near rivers and swampy areas. Altitude 50-500 m a.s.l. Local and common names known in Cameroon. mambéléngé, mandongé (dial. Baka bibaya). IUCN conservation status. Not evaluated (probably LC). Uses in Cameroon. <i>medicine</i>: bark used to allay fever; <i>construction</i>: wood used to make spoons. Notes. <i>Meiocarpidium oliverianum</i> is easily identifiable by the presence of peltate scale-like hairs on the lower side of the leaf blade, calyx and fruits, giving these parts a silvery aspect and color. The species was previsously known under the name <i>Meiocarpidium lepidotum</i> (Oliv.) Engl. &amp; Diels, but the name <i>Meiocarpidium oliverianum</i> of Baillon (1868) was published earlier and has priority (Johnson and Murray 2018). Selected specimens examined. <b>Central Region</b>: Bank Nyong River near the new bridge ca 65 km SSW of Eséka, 3.65°N, 10.78°E, <i>17 June 1964</i>, <i>de Wilde W.J.J.O</i> 2735 (B,BR,K,MO,P,WAG,YA); Bafia region, 4.75°N, 11.23°E, <i>18 December 1957</i>, <i>de Wit H.C.D</i> 7948 (WAG). <b>East Region</b>: Berbérati, 4.58°N, 13.68°E, <i>01 March 1963</i>, <i>BPFV</i> 2664 (P); 47 km NW of Bertoua near road from Mbang to Abaka, 4.58°N, 13.68°E, <i>22 May 1961</i>, <i>Breteler F.J.</i> 1398 (A,BR,K,M,P,UC,WAG,YA); Bertoua 9 km along road to Deng Deng, 4.58°N, 13.68°E, <i>31 August 1961</i>, <i>Breteler F.J.</i> 1817 (A,BR,K,M,P,WAG,YA); 70 km south of Yokadouma 30 km after Ngato 15 km after river ALPICAM 'base de vie’ then 40 km on forestry road starting 4 km before Maséa village, 3.15°N, 14.73°E, <i>04 March 2019</i>, <i>Couvreur T.L.P.</i> 1193 (MPU,WAG,YA); Yokadouma 3.52°N, 15.05°E, <i>11 September 1939</i>, <i>Jacques-Félix H.</i> 4904 (P); Deng Deng, 5.20°N, 13.13°E, <i>27 July 2014</i>, <i>Kamdem N.</i> 169 (YA); sur la route de Esseleké, 4.58°N, 13.68°E, <i>18 August 1955</i>, <i>Nana P.</i> 213 (P,YA); km 38 de la route de Deng-Deng, 4.58°N, 13.68°E, <i>17 September 1955</i>, <i>Nana P.</i> 257 (P,YA); Environ de Landjwe 25 km SW Yokadouma 3.47°N, 14.93°E, <i>16 June 1984</i>, <i>Satabié B.</i> 767 (P,YA). <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> 1182 (MPU,WAG,YA). <b>South Region</b>: 6 km N of km Kribi-Lolodorf, 3.08°N, 10.25°E, <i>12 March 1970</i>, <i>Bos J.J.</i> 6523 (WAG); Near village Oveng 27 km from Sangmélima along road to Yaoundé, 3.09°N, 11.90°E, <i>20 March 1962</i>, <i>Breteler F.J.</i> 2646 (BR,K,L,P,U,WAG,YA); Campo Ma an National Park 26 km after Ntem river, 3.07°N, 14.64°E, <i>08 March 2019</i>, <i>Couvreur T.L.P.</i> 376 (WAG,YA); on road from Lolodorf to Mekalat just after 1sty village Along the Malange river, 3.19°N, 10.71°E, <i>20 February 2012</i>, <i>Couvreur T.L.P.</i> 407 (WAG,YA); Campo Ma’an National Park 11 km on trail from Ebinanemeyong village on road 7 km from Nyabessan to Campo town, 2.46°N, 10.35°E, <i>14 February 2015</i>, <i>Couvreur T.L.P.</i> 709 (WAG,YA); Station de cacaoyer de N’koemvone 14 km On the road from Ebolowa to Ambam, 2.81°N, 11.13°E, <i>27 September 1974</i>, <i>de Wilde J.J.F.E</i> 7576 (BR,K,MO,P,WAG,YA); Ebolowa SW of Mbalmayo, 2.96°N, 11.28°E, <i>27 February 1964</i>, <i>de Wilde W.J.J.O</i> 1942 (BR,K,MO,P,WAG,YA); Près Akak 10 km W Sangmeli 2.96°N, 11.88°E, <i>11 March 1970</i>, <i>Letouzey R.</i> 10153 (P,YA); Ebom, 3.05°N, 10.71°E, <i>29 August 1996</i>, <i>Ndoum D.</i> 88 (KRIBI,WAG); Campo-Ma’an area 2.39°N, 10.07°E, <i>12 June 2001</i>, <i>van Andel T.R.</i> 3619 (KRIBI,WAG,YA); Campo-Ma’an area Akom II, 2.8°N, 10.53°E, <i>18 August 2001</i>, <i>van Andel T.R.</i> 3931 (U,WAG,YA); Bipindi, 3.08°N, 10.42°E, <i>1898</i>, <i>Zenker G.A.</i> 1864 (P); Bipindi, 3.08°N, 10.42°E, <i>01 January 1902</i>, <i>Zenker G.A.</i> 2505 (P); Bipindi, 3.08°N, 10.42°E, <i>01 January 1903</i>, <i>Zenker G.A.</i> 2521 (L,P,WAG); Bipindi, 3.08°N, 10.42°E, <i>01 January 1904</i>, <i>Zenker G.A.</i> 2947 (L,P,WAG); Bipindi, 3.08°N, 10.42°E, <i>01 January 1904</i>, <i>Zenker G.A.</i> 3221 (L,P,WAG); Bipindi, 3.08°N, 10.42°E, <i>01 January 1911</i>, <i>Zenker G.A.</i> 4209 (P,U); Bipindi, 3.08°N, 10.42°E, <i>01 January 1918</i>, <i>Zenker G.A.</i> 60 (P).
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 160-162, DOI: 10.3897/phytokeys.207.61432
description: {"references": ["Le Thomas, A, 1969b. Annonacees. In: Aubreville, A, Ed., Flore du Gabon. Museum National d'Histoire Naturelle, Paris: 1 - 371", "Baillon, H, 1868. Memoire sur la famille des Annonacees. Adansonia 8: 295 - 344", "Johnson, DM, Murray, NA, 2018. A revision of Xylopia L. (Annonaceae): the species of Tropical Africa. PhytoKeys 97: 1 - 252, DOI: https://doi.org/10.3897/phytokeys.97.20975"]}