Uvaria bipindensis Engl., Notizbl. Koenigl. Bot. Gart. Berlin 2: 292 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
Uvaria
Uvaria bipindensis

description: Uvaria bipindensis Engl., Notizbl. Königl. Bot. Gart. Berlin 2: 292, 1899 Figs 105, 106; Map 13E ≡ Uva bipindensis (Engl.) Kuntze, Deutsche Bot. Monatsschr. 21: 173, 1903. = Uvaria cardiophylla Engl. &amp; Diels, Monogr. Afrik. Pflanzen.-Fam. 6: 13, 1901. Type. Cameroon. South Region, Grand Batanga, <i>Dinklage M.J. 834</i>, 22 Oct 1890: holotype: B[B 10 0153071]; isotype: HBG[HBG502501]. Type. Cameroon. South Region; Bipindi, <i>Zenker G.A. 1116, 1 Jul</i> 1896: holotype: B[B 10 0153072]; isotypes: E[E00147945]; K[K000198775]; P[P00046767]; WU[WU0025884]. Description. Liana, 5-20 m tall, d.b.h. unknown. Indumentum of fasciculate hairs; old leafless <b>branches hirsute becoming glabrous, young foliate branches hirsute</b>. Leaves: petiole (2)4-5 mm long, 2 mm in diameter, densely pubescent, slightly grooved, blade inserted on top of the petiole; blade 9-27 cm long, 4-11 cm wide, obovate to elliptic, apex acuminate, acumen 1.5-2 cm long, <b>base cordate to acute or subcordate to rounded</b>, papyraceous, below sparsely hirsute with fasciculate hairs when young and old, above glabrous when young and old; midrib sunken or flat, <b>above densely pubescent with simple hairs</b> when young, pubescent to glabrous when old, below densely pubescent when young, pubescent when old; secondary veins <b>13 to 20</b> pairs, pubescent above; <b>tertiary venation percurrent (but some venation network like)</b>. Individuals bisexual; <b>inflorescences cauliflorous or occasionally on young foliate branches</b>, axillary. Flowers with 9 perianth parts in 3 whorls, 1 to 5 per inflorescence; pedicel 10-20 mm long, 1-2 mm in diameter, densely pubescent to tomentose; in fruit unknown; bracts 2, one basal and one towards the upper half of pedicel, basal bract not seen (soon falling?); upper bract 2-3 mm long, 3-5 mm wide; sepals 3, valvate, <b>free</b>, 7-8 mm long, 10-11 mm wide, suborbicular, apex obtuse, base truncate, brown tomentose outside, densely pubescent inside, margins flat, green-brown; petals free, sub equal; outer petals 3, <b>16-20 mm long, 15-16 mm wide</b>, ovate to suborbicular, apex obtuse, base truncate, cream white to cream yellow, margins flat, tomentose outside, densely pubescent towards margins, glabrous towards center inside; inner petals 3, imbricate, 10-12 mm long, 10-18 mm wide, elliptic to oblong, apex obtuse, base narrowed, cream white to cream yellow, margins flat, tomentose outside, glabrous inside; stamens 150 to 200, in 5 to 7 rows, ca. 4 mm long, linear; connective discoid, glabrous, white; staminodes absent; carpels free, 15 to 25, ovary ca. 4 mm long, stigma coiled, glabrous. <b>Monocarps stipitate</b>, <b>stipes 15-20 mm long</b>, 3-4 mm in diameter, <b>laterally inserted</b>; monocarps 8 to 13, 20-70 mm long, 20-40 mm in diameter, <b>cylindrical to oblong</b>, apex rounded, <b>brown tomentose, 4 to 5 ribbed</b>, otherwise smooth, orange-brown when ripe; seeds 5 to 12 per monocarp, ca. 20 mm long, ca. 14 mm in diameter, ellipsoid; aril absent. Distribution. A central African species, from Cameroon to Gabon and Equatorial Guinea (recently collected in those latter two countries); in Cameroon known from the Littoral, South and South-West regions. Habitat. A locally common species when present; occurring in primary rain forest on drained or swampy regions of sand soils, often in sandy areas. Altitude 0-400 m a.s.l. Local and common names known in Cameroon. None recorded. IUCN conservation status. Not evaluated. Uses in Cameroon. None reported. Notes. <i>Uvaria bipindensis</i> can be distinguished by its hirsute indumentum on the young foliate branches, petioles, sepals and petals and its large leaves (15-22 cm) with a clearly cordate or subcordate base. The flowers are cauliflorous, the only species in Cameroon with this character reported to date. The fruits were described for the first time by Lachenaud (2018), and here taken from two specimens (<i>Reits J.M. 1865</i> (WAG); <i>Carvalho M. 6047</i> (MA)) collected in Gabon and Equatorial Guinea respectively. The monocarps are very characteristic for Cameroonian <i>Uvaria</i> being stipitate oblong to cylindrical in shape having 4 to 5 marked ribs arising from the base. These fruits resemble those of <i>U. chamae</i>, <i>U. angolensis</i> or <i>U. versicolor</i> (not in Cameroon) in the length of the stipes (medium), but in the latter three the monocarps are smaller and narrower and lack ribs. This species was thought to be endemic to Cameroon, but has now been collected in Gabon several times (e.g. <i>Bidault 1686</i>, <i>1739</i>; <i>Couvreur 1092, 521</i>; <i>Lachenaud 1979</i>; <i>Reitsma 1865</i>) and Equatorial Guinea (<i>Carvalho 6047</i>). Specimens examined. <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> 1179 (K,MPU,WAG,YA); Mambe Massif above Boga village 100 km along road from Yaoundé to Ed 3.90°N, 10.77°E, <i>20 June 2014</i>, <i>Couvreur T.L.P.</i> 662 (WAG,YA); Au SE du Lac Tisongo (35 km SW Edéa), 3.53°N, 9.909°E, <i>09 January 1974</i>, <i>Letouzey R.</i> 12660 (P,YA). <b>South Region</b>: 20 km from Kribi N of Lolodorf road (SFIA logging road), 3°N, 10.05°E, <i>10 June 1969</i>, <i>Bos J.J.</i> 4794 (WAG); Campo Ma’an National Park 11 km on trail from Ebinanemeyong village on road 7 km from Nyabessan to Campo town, 2.48°N, 10.33°E, <i>11 February 2015</i>, <i>Couvreur T.L.P.</i> 673 (WAG,YA); Campo-Ma’an area Onoyong, 2.52°N, 10.69°E, <i>18 March 2001</i>, <i>Tchouto Mbatchou G.P.</i> ONOX_53 (WAG); Bipindi, 3.08°N, 10.42°E, <i>1896</i>, <i>Zenker G.A.</i> 1116 (K,P). <b>South-West Region</b>: Jocteh Andie-Muen, 5.10°N, 9.716°E, <i>09 November 2001</i>, <i>Etuge M.</i> 4504 (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 343-345, DOI: 10.3897/phytokeys.207.61432