Trichoscypha bijuga Engl.

Breteler, F. J., 2004, The genus Trichoscypha (Anacardiaceae) in Lower Guinea and Congolia: A synoptic revision, Adansonia (3) 26 (1), pp. 97-127 : 106

3. Trichoscypha bijuga Engl.

Bot. Jahrb. Syst. 1: 425 (1881); Keay in Hutch. & Dalz., Fl. West Trop. Afr. ed. 2, 1: 736 (1958); Breteler, Adansonia, sér. 3, 23: 252 (2001).

— Type: Mann 2343, Equatorial Guinea, Bioko , sin. loc., ♂ fl. Mar. (holo-, B, delet.; lecto-, K!; iso-, A!, P!).

Trichoscypha reticulata Engl. in DC , Monogr. Phan. 4: 307 (1883). — Type: Soyaux 112, Gabon, Sibange-Farm, ♀ fl. Aug. 1880 (holo-, B, delet.; lecto-, designated here, P!; iso-, K!, Z!).

Trichoscypha preussii Engl. , Bot. Jahrb. Syst. 15: 110 (1892); Keay in Hutch. & Dalz., Fl. West Trop. Afr. ed. 2, 1: 736 (1958). — Type: Preuss 463, Cameroun, Barombi-ba-Mbu, ♂ fl. Sep. 1890 (holo-, B, delet.; lecto-, K!).

Trichoscypha dinklagei Engl. , Bot. Jahrb. Syst. 36: 224 (1905). — Type : Dinklage 265, Cameroun, Lokundje R., ♂ fl. Nov. 1889 (holo-, B, delet.). Neotype (designated here): Bos 7146, Cameroun 36 km Kribi-Campo, ♂ fl. July 1970 (WAG!; iso-, K!). See Notes.

Trichoscypha gossweileri Exell & Mendonça , Bol. Soc. Brot., sér. 2, 26: 278, tab. 2 (1952); Consp. Fl. Ang. 2: 124, tab. 29 (1956); Van der Veken, Fl. Congo Belge et Ruanda-Urundi 9: 85 (1960). — Type: Gossweiler 6630, Angola, Cabinda, Buco Zau, rio Munze, ♀ fl. Aug. 1916 (holo-, BM!; iso-, COI!).

Shrub to small tree up to 20 m tall, trunk c. 15 cm in diam. Leaves 2-10(-13)-jugate; leaflets usually papery, with an impressed hairy midrib above, up to 40 × 11 cm. Inflorescence usually borne on the leafy shoot above, between or just below the leaves, often sharply reflexed at base and pendulous. Flowers (Jan.-Nov.) white to pale-red, the male ones sessile or nearly so, the female ones more often distinctly pedicelled. Fruits (Jan.- Dec.) red, ellipsoid to spindle-shaped, up to 4.5 × 2.5 cm, red, glabrous. — Figs 1C ; 5.

HABITAT AND DISTRIBUTION. — Rain forest, from Nigeria to Congo (Kinshasa); also known from Upper Guinea. Alt. up to c. 1000 m.

SELECTED SPECIMENS. — ANGOLA: Gossweiler 6630, Buco Zau, fl. Aug. (BM!, COI!). — CAMEROUN: Binuyo & Daramola FHI 35059, Kumba, fr. Jan. (FHO!, K!, P!) ; Bos 3314, near Kribi, fr. Nov. (K!, P!, WAG!) ; Cable et al. 845, Kupé Mt., fl. Jan. (WAG!) ; J.J. de Wilde 8460, Nkoemvone, fl. Sep. (BR!, K!, MA!, MO!, WAG!) ; Gentry & Thomas 52668, 10 km SE Korup, ster. Nov. (MO!, WAG!) ; Leeuwenberg 8359, Eboné, fl. Nov. (BR!, P!, WAG!) ; Mildbread 10700, Likomba, fl. Nov. (A!, K!) ; Sonké 1216, Dikoumbe, juv. fr. May (BR!) ; Tchouto & Elad BIFAX 124, Bifa, juv. fr. Oct. (WAG!) ; Tchouto et al. NMX 107, Bibabimvote, fl. July (WAG!) ; Thomas 6145, Tissongo Lake, fr. June (K!, MO!, WAG!) ; Zenker 2202, Bipindi, fl. (BM!, BR!, COI!, G!, GOET!, K!, MO!, P!, WAG!, Z!). — CONGO (Brazzaville): Bouquet 651, Loualou, fr. Nov. (P!) ; Cusset 593, Kuila, juv. fr. Nov. (P!) ; Sita 4907, Simba, fl. (BR!). — CONGO (Kinshasa): Mahieu 266, Luki, fl. (BR!). — EQUATORIAL GUINEA: Mann 2343, Bioko, sin. loc., fl. Mar. (A!, K!, P!) ; Lejoly & Van Asbroeck 49, Etembue, fl. b. Aug. (BRLU!). — GABON: Arends et al. 393, Waka, fr. Nov. (BR!, LBV, MO!, WAG!) ; Breteler & Jongkind 10188, Rabi, fr. Oct. (LBV, WAG!) ; Breteler c.s. 12375, Lifouta, fr. Nov. (WAG!) ; Breteler & de Wilde 347, Kinguélé, fl. Aug. (BR!, K!, LBV, MO!, WAG!) ; N. Hallé 3604, Bélinga, fr. Dec. (P!) ; Le Testu 1588, Issala, fl. Aug. (BM!, P!, WAG!) ; Le Testu 7462, Pougui, fl. Sep. (BM!, BR!, P!, WAG!) ; Sosef et al. 695, Iboundji Mt., fr. Feb. (LBV, WAG!) ; Soyaux 112, Sibange, fl. Aug. (K!, P!, Z!) ; L. White 1182, Lopé Res., Reitsma’s plot, fl. Aug. (LBV, MO!, WAG!) ; Wieringa et al. 3028, near Fougamou, fr. Nov. (LBV, WAG!). — NIGERIA: Gentry & Pilz 32889, 25 km N of Oban, ster. June (MO!) ; Latilo FHI 30925, Boshi-Okwango F.R., fr. May (K!) ; Okafor & Latilo FHI 57288, Ondo, fl. Sep. (FHO!, K!) ; Talbot 1301, Oban, fl. (BM!, K!). — CULTA (Netherlands): de Bruijn 1904, Wageningen, seedling (WAG!).

NOTES. — It was with some difficulty and only after other species had been excluded that Trichoscypha dinklagei , of which all the type material was lost, could be identified as representing T. bijuga . The short pedicel, the short stamens, and the glabrous disc, as mentioned in the original description, point to this species. Trichoscypha bijuga is a common species in the region around Kribi where DINKLAGE collected the type of T. dinklagei . More than 20 out of a total of 55 collections of this species examined from Cameroun are from this area, one of which from near Kribi is here designated as the neotype.

Figures

FIG. 1. — Flowers of Trichoscypha species, one petal removed: A, T. acuminata Engl.; B, T. arborea (A. Chev.) A. Chev.; C, T. bijuga Engl.; D, T. bracteata Breteler; E, T. engong Engl. & Brehmer; F, T. hallei Breteler; G, T. imbricata Engl.; H, T. laxiflora Engl.; I, T. lucens Oliv. A1, Breteler 15670; A2, Sosef et al. 516; A3, Breteler 15680; B1, Van der Burg 766; B2, J.J. de Wilde 311; C1, Stoop-van de Kasteele 210; C2, Beentje 889; D, Walker s.n.; E1, Mildbraed 5391; E2, Wilks 3519; F, N. Hallé 2822; G1, Breteler et al. 14477; G2, Breteler et al. 14491; H1, Bos 4981; H2, Van Andel et al. 3959; I1, de Koning 3909; I2, Beentje 875. Drawing by H. DE VRIES.

FIG. 5. — Distribution of Trichoscypha bijuga Engl.