Sabicea floribunda var. floribunda

Lachenaud, Olivier, Zemagho, Lise & Sonké, Bonaventure, 2020, A synopsis of the Sabicea floribunda group (Rubiaceae) from Central Africa, including three new species, Candollea 75 (1), pp. 115-143 : 126-129

publication ID

https://doi.org/ 10.15553/c2020v751a12

DOI

https://doi.org/10.5281/zenodo.6343126

persistent identifier

https://treatment.plazi.org/id/5F1C9F17-8C19-4E1B-425E-F704860255C7

treatment provided by

Carolina

scientific name

Sabicea floribunda var. floribunda
status

 

3a. Sabicea floribunda var. floribunda

( Fig. 7A View Fig ).

Distribution, ecology and phenology. – This taxon occurs in Atlantic Central Africa, mostly from southern Cameroon to east-central Gabon with a disjunct occurrence in southeastern Nigeria and adjacent western Cameroon ( Fig. 8 View Fig ). Its distribution marginally overlaps with those of var. paucinervis in the west of its range and of var. anisostegia in the east. It occurs in forest edges and regrowth, often along roads, 0–510 m in elevation, and is locally abundant.

Flowers probably all year (recorded from all months except March, June and September); fruits from February to June.

Conservation status. – The extent of occurrence ( EOO) of S. floribunda var. floribunda is calculated to be 187,299 km ², well above the limit for “Vulnerable” status under subcriterion B 1. Its area of occupancy ( AOO) is estimated to be 84 km ², which falls within the limit for “Endangered” status under subcriterion B 2, but is an obvious underestimation, given the low collecting density in most of its range. The taxon occurs in Central Africa from Nigeria to Gabon, and is known from 26 specimens. It is a locally common plant of secondary forest habitats, and not in any way threatened; consequently it is here assessed as “Least Concern” [LC] using the IUCN Red List Categories and Criteria ( IUCN, 2012).

Notes. – This taxon is morphologically (and also geographically) intermediate between S. floribunda var. paludosa and var. paucinervis , differing from the former in the shape and indumentum of its bracts, and from the latter by its stems and leaves being more hairy, the latter with more numerous secondary veins.

Additional material studied. – CAMEROON. Reg. South: au S de Zingui, 20.I.1962, fl., Letouzey 4043 ( BR, K, P, WAG, YA); Ebemwok (55 km W Ebolowa), 13.III.1963, imm.fr., J. & A. Raynal 10435 ( P, YA); Bebai, Campogebiet , 14.XII.1908, buds, Tessmann 716 ( K); Bipindi, 1898, buds, Zenker 1820 ( BM, G, K, P, WAG); Bipindi, 1904, fl., Zenker 3232 ( BM, BR, K). Reg. Southwest: Abonando , 5.V.1902, buds, Rudatis 52 ( K) .

EQUATORIAL GUINEA. Centro-Sur: Monte Mitra, 28.XI.1997, fl., Obama 315 ( BRLU, WAG); SE of Bata c. 50 km, Oborobikó , 25.II.1969, fl. (fallen), Sanford 6034 ( K); Ayaguening ( Akonangui ), 11.VIII.2001, buds, Sonké 2518 ( BR, BRLU); 8 km N de Mitong, 13.XII.2003, buds, Sonké 3157 ( BR, BRLU, K). Litoral: rte d’exploitation chantier SEMGE vers le 1er pont sur Mitemelé , 13.VI.1988, fr., Dibata 451 ( BR, K, WAG); de Sendje à Ongamnsok , 19.II.2001, imm.fr., Lejoly 01/08 ( BRLU); rte de Nco vers Misobong au niveau de la grande cascade , 9.I.1998, fl., N. Nguema & Lejoly 206 ( BRLU) .

GABON. Estuaire: Forêt de Mondah on road Libreville-Cap Esterias , 26.II.1999, imm.fr., Andersson & Nilsson 2277 ( BR); c. 20 km NNE of Libreville, 11.III.1987, fr., J.M. Reitsma & B. Reitsma 3142 ( LBV, WAG); Crystal Mountains N.P. , 8 km on road from Kinguélé to Tchimbélé, 26.III.2013, imm.fr., Wieringa et al. 7801 ( WAG). Moyen-Ogooué: Mboumi. 0°18–0°30S/10°45–10°48E, 16.I.2000, fl., Champluvier 6019 ( BR, K, WAG). Ogooué-Lolo: Chantier Bambidie, c. 52 km on the road to Okondja-Lelama, along Sebe river , 31.X.2005, fl., Sosef et al. 2122 ( BR, LBV, WAG). OgoouéMaritime: Région du Lac Alombié , ± 7 km au N de Mpaga, 18.X.2014, buds, Lachenaud et al. 2007 ( BRLU, LBV, MO). Woleu-Ntem: SEEG road near Tchimbélé , pylone 7, 6.II.2008, buds, Dessein et al. 1724 ( BR, LBV, WAG); Angoum, 28.VII.1933, fl., Le Testu 9198 ( BM, P); Monts de Crystal, Tchimbélé , 14.IV.2006, imm.fr., Leal et al. 1109 ( BR, LBV).

NIGERIA. Cross River State: Oban, 1911, buds, Talbot 228 ( BM, K); New Ndebiji , 30.IV.1952, fl., Ejiofor FHI 21883 ( FHI, K).

WAG

WAG

BRLU

BRLU

LBV

LBV

FHI

FHI

B

Botanischer Garten und Botanisches Museum Berlin-Dahlem, Zentraleinrichtung der Freien Universitaet

BR

Embrapa Agrobiology Diazothrophic Microbial Culture Collection

K

Royal Botanic Gardens

P

Museum National d' Histoire Naturelle, Paris (MNHN) - Vascular Plants

WAG

Wageningen University

G

Conservatoire et Jardin botaniques de la Ville de Genève

BRLU

Université Libre de Bruxelles

LBV

CENAREST

MO

Missouri Botanical Garden

A

Harvard University - Arnold Arboretum

E

Royal Botanic Garden Edinburgh

S

Department of Botany, Swedish Museum of Natural History

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Gentianales

Family

Rubiaceae

Genus

Sabicea