Brieya fasciculata De Wild., Repert. Spec. Nov. Regni Veg. 13: 384, 1914

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. & Sonke, Bonaventure, 2022, Flora of Cameroon - Annonaceae Vol 45, PhytoKeys 207, pp. 1-532 : 82-85

Brieya fasciculata De Wild., Repert. Spec. Nov. Regni Veg. 13: 384, 1914

Figs 19 , 20 ; Map 3B

≡ Piptostigma fasciculatum (De Wild.) Boutique ex Fries, In Engler A., Prantl K. (eds) Die Natürlichen Pflanzenfamilien 17aII: 115-116, 1959.

= Piptostigma aubrevillei Ghesq. ex. Aubrév.; Fl. For. Cote d’Ivoire 1: 98, 1936. Type. Ivory Coast. Mudjika, Aubréville A. 2115, 1932: lectotype, designated by Ghogue et al. (2017), p. 211: P[P02032149].

Type.

Democratic Republic of the Congo. Bas-Congo; Kingamu, Ganda sumi, de Briey J. 66, 14-16 Oct 1911: lectotype, sheet here designated: BR[BR-S.P.880319]; isotypes: BR[BR0000008803252, BR0000008803245, BR0000008803191] .

Description.

Tree, 10-25 m tall, d.b.h. 16-50 cm; stilt roots or buttresses absent. Indumentum of simple hairs; old leafless branches glabrous, young foliate branches pubescent. Leaves: petiole 2-5 mm long, ca. 2 mm in diameter, pubescent, grooved, blade inserted on top of the petiole; blade 12-24 cm long, 6-8 cm wide, obovate to oblanceolate, apex acuminate to obtuse, acumen 0.5-0.8 cm long, base cordate to obtuse, papyraceous, below glabrous to pubescent when young, glabrous to pubescent when old, above glabrous when young and old, discolorous, whitish below; midrib impressed, above pubescent when young and old, below pubescent when young and old; secondary veins 11 to 17 pairs, glabrous below; tertiary venation percurrent. Individuals bisexual; inflorescences ramiflorous on old leafless branches, axillary occurring on short peduncle-like bases 0-2 mm long. Flowers with 9 perianth parts in 3 whorls, 1 to 4 per inflorescence; pedicel 1-2 mm long, ca. 5 mm in diameter, pubescent; in fruit 15-25 mm long, 4-5 mm in diameter, glabrous; bracts 2, one basal and one upper towards the lower half of pedicel, basal bract 2-3 mm long, ca. 2 mm wide; upper bract ca. 1 mm long, ca. 2 mm wide; sepals 3, valvate, free, ca. 2 mm long, ca. 2 mm wide, ovate, apex acute, base truncate, brown, pubescent outside, glabrous inside, margins flat; petals free, outer petals shorter than inner; outer petals 3, sepal like, 1.5-2 mm long, 1.5 mm wide, ovate, apex acuminate, base truncate, light green, margins flat, pubescent outside, glabrous inside; inner petals 3, valvate, 38-108 mm long, 3-7 mm wide, linear, apex acute, base truncate, green, margins flat, pubescent inside, pubescent outside; stamens 30 to 40, in 4 to 5 rows, ca. 1 mm long, broad; connective discoid, glabrous, green; staminodes absent; carpels free, ca. 4, ovary ca. 2 mm long, stigma minute, densely pubescent. Monocarps sessile, 1 to 3, 42-46 mm long, 25-40 mm in diameter, ellipsoid, apex rounded, glabrous, smooth, fleshy, green when ripe; seeds 18 to 20 per monocarp, ca. 10 mm long, ca. 4 mm in diameter, ellipsoid; aril absent.

Distribution.

From Côte d’Ivoire to Democratic Republic of the Congo and Angola; in Cameroon known from East, South, Centre, Littoral and South-West regions.

Habitat.

A common species when present, in lowland to submontane rain forests in primary or secondary habitats. Altitude 250-810 m a.s.l.

Local and common names known in Cameroon.

baouéfou à grandes feuilles (french) ( Burkill 1985).

IUCN conservation status.

Least Concern (LC) ( Cosiaux et al. 2019e).

Uses in Cameroon.

None recorded.

Notes.

Brieya fasciculata is distinguished by its discolorous leaves, glaucous white below with a percurrent tertiary venation, its flowers occurring on reduced inflorescences with a short peduncle, the inner petals much longer than the outer ones, with the minute sepals and outer petals identical is shape and size, and its long green linear inner petals.

Specimens examined.

Central Region: Pres Ngong (25 km NE d’Edéa), 3.75°N, 10.98°E, 12 December 1973, Letouzey R. 12345 (P,YA) . East Region: 68 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 Masea village , 3.08°N, 14.66°E, 08 March 2019, Couvreur T.L.P. 1231 (MPU,WAG,YA); Batéka Malen 20 km NE de Moloundou, 2.15°N, 15.35°E, 23 April 1971, Letouzey R. 10718 (P,YA); Entre Asip et Mang (60 km ENE de Lomié), 3.4°N, 14.17°E, 13 August 1963, Letouzey R. 5605 (P,YA) . North-West Region: Kagwene , 6.10°N, 9.744°E, 13 June 2009, Ashworth J. 310 (K,YA) . South Region: Campo Ma’an National Park 11 km on trail from Ebinanemeyong village on road 7 km from Nyabessan to Campo town , 2.48°N, 10.34°E, 11 February 2015, Couvreur T.L.P. 677 (WAG,YA); Abords de la Lobé à 50 km au SSE de Kribi et à 30 km à l’ENE de Campo, 2.51°N, 9.82°E, 23 March 1968, Letouzey R. 9132 (YA) . South-West Region: Mudjika (Wudjika?), 4.29°N, 9.41°E, 01 January 1933, Aubréville A. 2115 (P); on trail from Ekongo village located 5 km before the entrance to Limbe 7 km on secondary road On flank of Mt Etinde 100 m in Mont Cameroon National Park, 4.07°N, 9.132°E, 16 October 2013, Couvreur T.L.P. 510 (WAG,YA); on trail from Ekongo village located 5 km before the entrance to Limbe 7 km on secondary road On flank of Mt Etinde 100 m in Mont Cameroon National Park, 4.07°N, 9.131°E, 16 October 2013, Couvreur T.L.P. 511 (WAG,YA); Rumpi mountains forest trail ca 5 km after Dikome Balue village ca 40 km north of Kumba , 4.93°N, 9.240°E, 10 January 2016, Couvreur T.L.P. 957 (WAG,YA); Kupe village Muanezum trail = Daniel Ajang’s Earthwatch rented area Mt 4.76°N, 9.666°E, 28 March 1996, Etuge M. 1844 (K); Kupe village , 4.77°N, 9.688°E, 28 November 1999, Gosline W.G. 234 (K); Njonji, 4.11°N, 9.016°E, 21 April 1997, Nning J. 385 (K,YA); Cameroon Mountain, 4.12°N, 9.028°E, 20 June 2001, van Andel T.R. 3732 (U,WAG) .

Figures

Map 3. A Artabotrys velutinus B Brieya fasciculata C Cleistopholis glauca D Cleistopholis myristiciflora E Cleistopholis patens F Cleistopholis staudtii G Dennettia tripetala H Duguetia barteri I Duguetia confinis. White borders represent region limits in Cameroon; green patches represent protected areas (see methods and Suppl. material 1: Fig. S 1).

Figure 19. Brieya fasciculata A flowering branch B flower, bottom view C flower, top view D detail of receptacle, all petals removed E longitudinal section of receptacle F stamen G carpel, side view and detail of ovules A from Aubreville 1500 B-G from Halle 3166; 8 from Germain 2396. Drawings by Helene Lamourdedieu, Publications Scientifiques du Museum national d'Histoire naturelle, Paris; modified from Le Thomas (1969 b, pl. 22, p. 127).

Figure 20. Brieya fasciculata A habit B leaf, upper side C leaf base, upper side D detail of leaf blade and venation; lower side E flower F detail of minute sepals and outer petal, in contrast to long inner petals G detail of receptacle H fruit with a single monocarp (others have fallen) A, H Couvreur 645, Mambe, Cameroon B, C no voucher, Rumpi Mountains, Cameroon D-G Couvreur 510, Mt Etinde, Cameroon. Photos Thomas L. P. Couvreur.