Artabotrys congolensis De Wild. &amp; T. Durand, Ann. Mus. Congo Belge, Bot. Ser. 2, 1 (1): 2 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
Artabotrys
Artabotrys congolensis

description: Artabotrys congolensis De Wild. &amp; T. Durand, Ann. Mus. Congo Belge, Bot. Sér. 2, 1(1): 2, 1899 Fig. 12; Map 2C = Artabotrys rhopalocarpus Le Thomas, Adansonia sér. 2, 6: 591, 1966. Type. Central African Republic: Lobaye, Boukoko, <i>Tisserant C. 2242</i>, 25 Sep 1951: lectotype, sheet here designated: P[P00364752]; isotypes: BM[BM000546867]; BR[BR0000008820822]; LISC[LISC000373]; P[P00363392, P00363390]; WAG[WAG0392422]. Type. Democratic Republic of the Congo. Equateur; Lukolela, <i>Dewèvre A.P. 819</i> , 31 Mar 1896: holotype: BR[BR0000008820808]; isotype: B[B 10 0153012]. Description. Liana, height unknown, d.b.h. ca. 8 cm. Indumentum of simple hairs; <b>old leafless branches glabrous, young foliate branches glabrous</b>. Leaves: petiole 10-15 mm long, ca. 2 mm in diameter, glabrous, grooved, blade inserted on the side of the petiole; blade 8-26 cm long, 4-11 cm wide, elliptic to obovate, apex acute to acuminate, acumen 0.5-1 cm long, base acute to decurrent, coriaceous, below glabrous when young and old, above glabrous when young and old, concolorous; midrib impressed, above glabrous when young and old, below glabrous when young and old; secondary veins 8 to 13 pairs, glabrous above; tertiary venation reticulate. Individuals bisexual; inflorescences ramiflorous on old leafless branches, leaf opposed. Flowers with 9 perianth parts in 3 whorls, 1 to 3 per inflorescence, hook-shaped peduncle 10-15 mm long; pedicel 10-25 mm long, 2-3 mm in diameter, glabrous; in fruit 12-20 mm long, 2-3 mm in diameter, glabrous; bracts 1 to 2, all basal, basal bracts 2-3 mm long, 1-2 mm wide; sepals 3, valvate, free, 5-8 mm long, 3-7 mm wide, triangular, apex acute, base truncate, pubescent outside, glabrous inside, margins flat; petals free, inner shorter than outer, green turning yellow; <b>outer petals 3, 15-25 mm long</b>, <b>8-14 mm wide</b>, ovate, apex acute, base broad and concave, margins flat, tomentose outside, tomentose with a glabrous base inside; inner petals 3, valvate, 8-17 mm long, 5-8 mm wide, elliptic to rhombic, apex acute, base broad and concave forming a chamber over the receptacle, margins flat, tomentose outside, tomentose with a glabrous base inside; stamens numerous, number of rows unknown, 2-3 mm long, oblong; connective discoid, glabrous; staminodes absent; carpels free, 15 to 20, ovary 3-4 mm long, stigma tubular, sparsely pubescent. Monocarps <b>stipitate, stipes 1-2 mm long, 1-3 mm in diameter, but gradually widening into seed-bearing part; monocarps 15 to 20, to 60 mm long</b>, ca. 25 mm in diameter, obovoid, apex acute to rounded, <b>glabrous</b>, smooth, glossy, green when ripe; seeds 1 to 2 per monocarp, 19-22 mm long, 10-15 mm in diameter, ellipsoid, laterally flattened; aril absent. Distribution. A central African species, from Cameroon to the Republic of Congo and in the Democratic Republic of the Congo; in Cameroon known from the Central, East, Littoral, South and South-West regions. Habitat. A common species; in lowland or premontane secondary or primary rain forests. Altitude 400-1000 m a.s.l. Local and common names known in Cameroon. None recorded. IUCN conservation status. Not evaluated. Uses in Cameroon. None recorded. Notes. <i>Artabotrys congolensis</i> is distinguished by its completely glabrous branches, petioles and leaf blades, its outer petals that are broad and the inner petals much narrower and its sessile fruits with a stipes gradually widening into the seed-bearing part of the monocarp. Le Thomas described <i>Artabotrys rhopalocarpus</i> (Le Thomas 1967c) which was later synonymized with <i>A. congolensis</i> (Bamps and Le Thomas 1989). Specimens examined. <b>Central Region</b>: near Ebolbom village 4 km est of Ngoumou 3 km north west of Otélé, 3.60°N, 11.28°E, <i>02 May 2013</i>, <i>Couvreur T.L.P.</i> 431 (MPU,WAG,YA). <b>East Region</b>: Sur axe Lomié-Ngoila-Souanké à 15 km au SSW de Ngola, 2.51°N, 13.86°E, <i>22 February 1973</i>, <i>Letouzey R.</i> 12016 (P,YA). <b>Littoral Region</b>: Tissongo, 3.57°N, 9.869°E, <i>09 July 1976</i>, <i>McKey D.B.</i> 111 (K). <b>South Region</b>: Ebolowa-Yaoundé, 3.00°N, 10.92°E, <i>12 January 1914</i>, <i>Mildbraed G.W.J.</i> 7727 (B). <b>South-West Region</b>: Nyasoso, 4.86°N, 9.7°E, <i>04 June 1996</i>, <i>Cable S.</i> 2851 (K,YA); Along path from village Mt Etinde summit, 4.05°N, 9.15°E, <i>02 December 1993</i>, <i>Cable S.</i> 332 (K); Kupe Rock saddle, 4.78°N, 9.716°E, <i>11 July 1996</i>, <i>Cable S.</i> 3804 (K,YA); Kupe village, 4.78°N, 9.716°E, <i>17 July 1996</i>, <i>Cable S.</i> 3894 (K,YA); Upper Boando, 4.05°N, 9.153°E, <i>08 December 1993</i>, <i>Cable S.</i> 475 (K,YA); Mabeta Moliwe reserve 3-5 km east of Limbe, 4.00°N, 9.256°E, <i>03 July 1992</i>, <i>Cheek M.</i> 3470 (P); Kupe village, 4.77°N, 9.688°E, <i>29 November 1999</i>, <i>Gosline W.G.</i> 241 (K); Pente E Mont 6 km E Bomana 35 km NW Limbé Alt 950 m, 4.27°N, 9.112°E, <i>11 December 1984</i>, <i>Villiers J.-F.</i> 2441 (P,YA); Saddle between Mt Etinde and Cameroon, 4.08°N, 9.116°E, <i>28 October 1992</i>, <i>Wheatley J.I.</i> 644 (K,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 61-63, DOI: 10.3897/phytokeys.207.61432
description: {"references": ["Le Thomas, A, 1967c. Un nouveau Artabotrys africain: Artabotrys rhopalocarpusA. Le Thomas (Annonacee). Adansonia, ser. 2 6: 589-592.", "Bamps, P, Le Thomas, A, 1989. L'identite d' Artabotrys rhopalocarpus Le Thomas, Annonacee africaine. Bulletin du Museum national d'histoire naturelle B, Adansonia 11: 455 - 457"]}