Monanthotaxis bokoli Verdc., Kew Bull. 25 (1): 24 1971
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
Monanthotaxis
Monanthotaxis bokoli

description: Monanthotaxis bokoli (De Wild. &amp; T. Durand) Verdc., Kew Bull. 25(1): 24, 1971 Fig. 46; Map 6E ≡ Xylopia bokoli De Wild. &amp; T. Durand, Ann. Mus. Congo Belge, Bot. sér. 2, 1(2.1): 2, 1900; Popowia bokoli (De Wild. &amp; T. Durand) Boutique, Fl. Congo Belge &amp; Ruanda-Urundi 2: 349, 1951. = Popowia iboundjiensis Pellegr., Bull. Soc. Bot. France 96: 212, 1950. Type. Gabon. Ngounié, Ndingui (Mullerville), <i>Le Testu G.M.P.C. 5729</i>, 11 nov 1925: lectotype, chosen by Hoekstra et al. (2021), p. 134: P[P00362791]; isolectotypes: BM[BM000553827]; LISC[LISC000388]; P[P00362789, P00362790]. Type. Democratic Republic of the Congo. no region; no location, <i>Dewèvre A.P. 785</i> , no date: lectotype, sheet designated in Hoekstra et al. (2021), p. 133: BR[BR0000024941433]; isolectotypes: BR [BR0000008804020, BR0000008804358]. Description. Shrub to liana, 6 m tall, d.b.h unknown. Indumentum of simple hairs; <b>old leafless branches glabrescent with lenticels, young foliate branches densely pubescent with erect reddish brown hairs 0.4-1.3 mm long</b>. Leaves: petiole 3-6 mm long, ca. 1 mm in diameter, pubescent, cylindrical, blade inserted on top of the petiole; blade 4.5-12.5 cm long, 2-7 cm wide, oblong to elliptic, <b>apex obtuse</b>, base subcordate, papyraceous to subcoriaceous, below sparsely pubescent when young and old, above sparsely pubescent to glabrous when young and old, discolorous, whitish below; midrib impressed, above pubescent when young and old, below pubescent when young and old; secondary veins 7 to 11 pairs, glabrous above; tertiary venation percurrent. Individuals bisexual; inflorescences ramiflorous on young and old leafless branches, leaf opposed or extra axillary. Flowers with 9 perianth parts in 3 whorls, 1 per inflorescence; pedicel 11-24 mm long, ca. 1 mm in diameter, sparsely pubescent to densely pubescent; in fruit 12-22 mm long, ca. 1 mm in diameter; basal bracts when present 1-2 mm long, ca. 1 mm wide; upper bract 1-2 mm long, ca. 1 mm wide; sepals 3, valvate, basally fused, 3-4 mm long, 5-7 mm wide, ovate, apex rounded, base truncate, sparsely pubescent outside, glabrous inside, margins flat; petals free, outer petals longer than inner, inner petals entirely covered in bud; <b>outer petals 3, 15-19 mm long, 8.4-11.8 mm wide</b>, ovate, apex rounded to obtuse, base truncate, margins flat, densely pubescent outside, pubescent inside; <b>inner petals 3, valvate, ca. 13 mm long, 4.5-5.5 mm wide</b>, linear to elliptic, apex acute, base truncate, margins flat, densely pubescent outside, <b>glabrous but pubescent towards margins inside</b>; stamens 24 to 32, in 3 to 4 rows, ca. 1 mm long, obovate; connective truncate, glabrous; staminodes absent; carpels free, 27 to 38, ovary ca. 3 mm long, stigma cylindrical, glabrous. <b>Monocarps stipitate, stipes 7-25 mm long, 2-3 mm in diameter</b>; monocarps 1 to 25, 26-65 mm long, 5-8 mm in diameter, moniliform, cylindrical, apex rounded to apiculate, glabrous, verrucose to weakly torulose, constricted around seeds when more than 1, yellow turning orange when ripe; <b>seeds 1 to 4 per monocarp, 14-21 mm long, 4-6 mm in diameter, subcylindrical</b>; aril absent. Distribution. A central African species, from Cameroon to Gabon, and the Central African Republic and the Democratic Republic of the Congo; in Cameroon known from the Adamaoua, East and South-West regions. Habitat. A rare species in Cameroon but with a wide distribution; in swamp forests, gallery forests, premontane primary and secondary rain forests. Altitude: 600-1200 m a.s.l. Local and common names known in Cameroon. None recorded. Preliminary IUCN conservation status. Least concern (LC) (Hoekstra et al. 2021). Uses in Cameroon. None recorded. Notes. <i>Monanthotaxis bokoli</i> is distinguished by its dense erect reddish brown hairs on the branches and leaves, large flowers, almost glabrous inner petals inside and monocarps with long stipes and subcylindrical seeds. In pubescence <i>M. bokoli</i> resembles <i>M. ferruginea</i>. Specimens examined. <b>Adamaoua Region</b>: rocher conglomératique de Mbalarzi dans la vallée de la Mbere (65 km NE de Meiganga), 7°N, 14.51°E, <i>16 October 1963</i>, <i>Letouzey R.</i> 6195 (P). <b>East Region</b>: km 17 of Bétaré Oya-Meiganga road 5 km SE of Ndokayo, 5.55°N, 14.1°E, <i>03 February 1966</i>, <i>Leeuwenberg A.J.M.</i> 7716 (BR,K,MO,P,WAG,YA); Kongolo, 5.4°N, 14.03°E, <i>01 April 1914</i>, <i>Mildbraed G.W.J.</i> 9010 (K). <b>South-West Region</b>: Piste Akwaya-Mamfe près Makomono 7 km S Akwaya, 6.31°N, 9.557°E, <i>25 July 1975</i>, <i>Letouzey R.</i> 14081 (MO,P,WAG,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 172-174, DOI: 10.3897/phytokeys.207.61432
description: {"references": ["Hoekstra, PH, Wieringa, JJ, Maas, JM, Chatrou, LW, 2021. Revision of the African species of Monanthotaxis (Annonaceae). Blumea 66: 107 - 221, DOI: https://doi.org/10.3767/blumea.2021.66.02.01", "Le Thomas, A, 1969b. Annonacees. In: Aubreville, A, Ed., Flore du Gabon. Museum National d'Histoire Naturelle, Paris: 1 - 371"]}