Duguetia staudtii Chatrou, Changing Genera: 70 1998
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
Duguetia
Duguetia staudtii

description: Duguetia staudtii (Engl. &amp; Diels) Chatrou, Changing Genera: 70, 1998 Fig. 26; Map 4B ≡ Uvaria staudtii Engl. &amp; Diels, Notizbl. Königl. Bot. Gart. Berlin 2: 292, 1899; Pachypodanthium staudtii Engl. &amp; Diels, Notizbl. Königl. Bot. Gart. Berlin 3: 55, 1900. Type. Cameroon. South Region; near Lolodorf, <i>Staudt A. 133</i>, 1896: holotype: B[B 10 0154084]; isotypes: BM[BM000843984]; K[K000198873, K000198874]; P[P00315814, P00315816]; S[S02-94]. Description. Tree, 15-50 m tall, d.b.h. 20-70 cm; stilt roots or buttresses absent. Indumentum of stellate or fasciculate hairs; old leafless branches sparsely pubescent to glabrous, young foliate branches sparsely pubescent to densely pubescent. Leaves: petiole 2-10 mm long, 2-4 mm in diameter, densely pubescent to sparsely pubescent, grooved, blade inserted on the side of the petiole; blade 13-34 cm long, 3-8 cm wide, <b>narrowly obovate, narrowly oblong to narrowly elliptic, apex acuminate to acute</b>, acumen 0.5-1 cm long, <b>base cordate (more rarely acute)</b>, coriaceous, below sparsely pubescent when young, pubescent when old, above glabrous when young and old, concolorous; midrib sunken or flat, above glabrous when young and old, below sparsely pubescent when young and old; secondary veins 10 to 22 pairs, <b>weakly distinct</b>, glabrous below; tertiary venation reticulate. Individuals bisexual; inflorescences ramiflorous on old leafless or young foliate branches, leaf opposed or extra axillary, <b>not forming a peduncle.</b> Flowers with 9 perianth parts in 3 whorls, 2 to 4 per inflorescence; pedicel 6-12 mm long, 2-3 mm in diameter, sparsely pubescent to densely pubescent; in fruit 2-30 mm long, 2-6 mm in diameter, sparsely pubescent to densely pubescent; bracts 2, one basal and one towards the upper half of pedicel, basal bracts 9-12 mm long, 5-7 mm wide; sepals 3, valvate, free, 9-15 mm long, 7-10 mm wide, ovate, apex acute, base truncate, green, densely pubescent outside, glabrescent inside, margins flat; petals free, outer petals longer than inner to sub equal; outer petals 3, 7-30 mm long, 4-10 mm wide, oblong-elliptic to oblong-obovate, apex acute, base truncate, cream to white, margins flat, sparsely pubescent outside, glabrous inside; inner petals 3, imbricate, 4-20 mm long, 4-6 mm wide, elliptic to obovate, apex acute to obtuse, base truncate, cream, margins flat, pubescent outside, glabrous inside; stamens 120 to 150, in 5 to 6 rows, 1-2 mm long, broad; connective discoid, glabrous, red; staminodes absent; carpels free, 50 to 100, ovary 1-1.5 mm long, stigma globose, glabrous. Fruit pseudosyncarpous, 20-55 mm in diameter, globose to depressed ovoid; carpels sessile, <b>basally fused</b>, 50 to 100 monocarps, 20-55 mm long, 2-10 mm in diameter, globose to ovoid, apex acute, densely pubescent, longitudinally ribbed with 5 to 6 main ribs, red when ripe; seed 1 per monocarp, 7-13 mm long, 6-8 mm in diameter, ellipsoid; <b>aril present, pale yellow.</b> Distribution. A widespread species with a disjunct distribution in West (Sierra Leone, Liberia, Ivory Coast and Nigeria) and in Central Africa from Cameroon to Democratic Republic of the Congo; in Cameroon known from East, South, Central, Littoral and South-West regions. Habitat. A common species; in lowland or premontane primary and secondary non-inundated rain forests. Altitude 100-900 m a.s.l. Local and common names known in Cameroon. ntom (dial. Bagali); nto ntomba (dial. Bagielli) (Letouzey 1964). IUCN conservation status. Least Concern (LC) (Cosiaux et al. 2019k). Uses in Cameroon. <i>medicine</i>: bark used for pain-killers, pulmonary troubles, vermifuges, dropsy, swellings, oede gout, tumours, cancers; <i>constructions</i>: building materials; <i>dyes and tannins</i>: tannins, astringents, insecticides, arachnicides, arrow-poisons, aromatic substances, alkaloids. Notes. <i>Duguetia staudtii</i> is distinguished by its narrowly obovate, narrowly oblong to narrowly elliptic leaves, the midrib that is grooved above and monocarps that are only basally fused. Specimens examined. <b>Central Region</b>: Yaoundé, 3.86°N, 11.51°E, <i>01 January 1935</i>, <i>Foury P.</i> 69 (P,WAG). <b>East Region</b>: 17 km along road to Deng Deng, 4.58°N, 13.68°E, <i>01 September 1961</i>, <i>Breteler F.J.</i> 1841 (WAG); Près Kinsassa 65 km au NNE de Moloundou sur route Yokadouma 2.63°N, 15.37°E, <i>04 March 1971</i>, <i>Letouzey R.</i> 10509 (P,YA); Colline à l’ENE de Mbalam (140 km ESE de Djoum près Souanké-Congo), 2.22°N, 13.82°E, <i>20 January 1973</i>, <i>Letouzey R.</i> 11867 (P,YA). <b>Littoral Region</b>: Douala-Edéa Reserve Tissongo study area Transect B, 3.57°N, 9.869°E, <i>01 June 1976</i>, <i>Waterman P.G.</i> 879 (U). <b>South Region</b>: Bitye, 3.87°N, 11.52°E, <i>01 January 1919</i>, <i>Bates G.L.</i> 1199 (BM,MO); 17 km east from Lélé village, 2.28°N, 13.32°E, <i>07 September 2013</i>, <i>Couvreur T.L.P.</i> 460 (WAG,YA); 25 km east from Lélé village at end of path on Ivindo river, 2.25°N, 13.28°E, <i>09 September 2013</i>, <i>Couvreur T.L.P.</i> 489 (WAG,YA); Sud TDC, 2.65°N, 9.9°E, <i>06 November 1991</i>, <i>Hallé F.</i> 4220 (WAG); Ncolbew 3.28°N, 11.2°E, <i>26 April 1928</i>, <i>Hédin L.</i> 1646 (P); Colline Ebon près Nkobiyo 25 km ENE d’Ambam, 2.45°N, 11.5°E, <i>21 March 1970</i>, <i>Letouzey R.</i> 10181 (P,YA); Mvini 35 km east of Campo, 2.37°N, 10.09°E, <i>20 December 1983</i>, <i>Mikio K.</i> 5 (P,YA); ca 7 km NE of Ebom, 3.11°N, 10.75°E, <i>01 August 1996</i>, <i>Parren M.P.E.</i> 157 (KRIBI,WAG); ca 7 km NE of Ebom, 3.11°N, 10.75°E, <i>01 August 1996</i>, <i>Parren M.P.E.</i> 212 (KRIBI,WAG); Lolodorf, 3.23°N, 10.73°E, <i>1896</i>, <i>Staudt A.</i> 133 (P); Lolodorf, 3.23°N, 10.73°E, <i>March 1895</i>, <i>Staudt A.</i> 138 (B); Campo-Ma’an area 2.4°N, 10.1°E, <i>02 April 2001</i>, <i>van Andel T.R.</i> 3290 (KRIBI,U,WAG,YA). <b>South-West Region</b>: Bayang Mbo Wildlife Sanctuary after Mbu river, 5.35°N, 9.501°E, <i>26 March 2016</i>, <i>Couvreur T.L.P.</i> 1014 (WAG,YA); Near Mamfe, 5.75°N, 9.31°E, <i>19 April 1978</i>, <i>Thomas D.W.</i> 384 (K).
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 108-109, DOI: 10.3897/phytokeys.207.61432
description: {"references": ["Letouzey, R, 1964. Denominations pygmees de quelques arbres et arbustes forestiers camerounais. Journal d'Agriculture Tropicale et de Botanique Appliquee 11: 347 - 383, DOI: https://doi.org/10.3406/jatba.1964.2784", "Cosiaux, A, Couvreur, TLP, Erkens, RHJ, 2019k. Duguetia staudtii. The IUCN Red List of Threatened Species: e.T61984653A61984656. https://doi.org/10.2305/IUCN.UK.2019-3.RLTS.T61984653A61984656.en"]}