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Gelrebia Gagnon & G.P. Lewis, PhytoKeys 71: 54. 2016.

Bruneau, Anne, de Queiroz, Luciano Paganucci, Ringelberg, Jens J., Borges, Leonardo M., Bortoluzzi, Roseli Lopes da Costa, Brown, Gillian K., Cardoso, Domingos B. O. S., Clark, Ruth P., Conceicao, Adilva de Souza, Cota, Matheus Martins Teixeira, Demeulenaere, Else, de Stefano, Rodrigo Duno, Ebinger, John E., Ferm, Julia, Fonseca-Cortes, Andres, Gagnon, Edeline, Grether, Rosaura, Guerra, Ethiene, Haston, Elspeth, Herendeen, Patrick S., Hernandez, Hector M., Hopkins, Helen C. F., Huamantupa-Chuquimaco, Isau, Hughes, Colin E., Ickert-Bond, Stefanie M., Iganci, Joao, Koenen, Erik J. M., Lewis, Gwilym P., de Lima, Haroldo Cavalcante, de Lima, Alexandre Gibau, Luckow, Melissa, Marazzi, Brigitte, Maslin, Bruce R., Morales, Matias, Morim, Marli Pires, Murphy, Daniel J., O'Donnell, Shawn A., Oliveira, Filipe Gomes, Oliveira, Ana Carla da Silva, Rando, Juliana Gastaldello, Ribeiro, Petala Gomes, Ribeiro, Carolina Lima, Santos, Felipe da Silva, Seigler, David S., da Silva, Guilherme Sousa, Simon, Marcelo F., Soares, Marcos Vinicius Batista & Terra, Vanessa, 2024, Advances in Legume Systematics 14. Classification of Caesalpinioideae. Part 2: Higher-level classification, PhytoKeys 240, pp. 1-552 : 1

publication ID

 https://dx.doi.org/10.3897/phytokeys.240.101716

persistent identifier

https://treatment.plazi.org/id/9197DD7C-04B9-1971-A43C-00DF4A3F1DBC

treatment provided by

PhytoKeys by Pensoft

scientific name

 Gelrebia Gagnon & G.P. Lewis, PhytoKeys 71: 54. 2016.
status

 

Gelrebia Gagnon & G.P. Lewis, PhytoKeys 71: 54. 2016. View in CoL

Figs 35 View Figure 35 , 37 View Figure 37 , 58 View Figure 58

Type.

Gelrebia rubra (Engl.) Gagnon & G.P. Lewis [≡ Hoffmannseggia rubra Engl.]

Description.

Erect to scrambling shrubs, armed with scattered, straight, or curved, deflexed prickles. Stipules minutes, caducous or lacking. Leaves bipinnate, ending in a pair of pinnae; pinnae 1-17 opposite pairs; leaflets 1-33 opposite pairs per pinna [except in G. glandulosopedicellata (R.Wilczek) Gagnon & G.P. Lewis], lower surface of the blades with numerous subepidermal glands or translucent dots. Inflorescence a terminal or axillary raceme. Flowers bisexual, zygomorphic; hypanthium persisting as a wide shallow cup at the pedicel apex as the fruit matures; sepals 5, caducous, lower sepal strongly cucullate (occasionally with a beaked apex), covering the other 4 sepals in bud before anthesis; petals 5, free, dark pinkish mauve to light pinkish white, eglandular; stamens 10, free, filaments pubescent and eglandular; ovary glabrous. Fruit a coriaceous, broadly oblong-ovate to obliquely pyriform legume. Seeds laterally compressed.

Chromosome number.

Unknown.

Included species and geographic distribution.

Nine taxa in eight species, restricted to Africa, in Namibia, Angola, Botswana, South Africa, Mozambique, northern Kenya, Ethiopia, Somalia, and the Democratic Republic of the Congo (Zaire, Katanga) (Fig. 58 View Figure 58 ).

Ecology.

Deciduous bushlands, dry woodlands, on rocky ridges, often along dry riverbeds, or on sandy valley floors. One species also found in degraded savannas.

Etymology.

Gelreb or gelrib is the Somali name for Gelrebia trothaei subsp. erlangeri (Harms) Gagnon & G.P. Lewis, meaning 'camel trap’ and clearly alluding to the robust deflexed prickles characteristic of the species, and indeed the whole genus, which can hinder the passage of camels.

Human uses.

Unknown.

Taxonomic references.

Brenan (1963a, 1967); Brummitt et al. (2007); Curtis and Mannheimer (2005); Gagnon et al. (2016); Germishuizen (1991); Nkowki and Swelankomo (2003); Ross (1977); Roti-Michelozzi (1957); Thulin (1980, 1983, 1993); Wilczek (1951).

Kingdom

Plantae

Phylum

Tracheophyta

Class

Magnoliopsida

Order

Fabales

Family

Fabaceae

SubFamily

Caesalpinioideae

Tribe

Caesalpinieae

Specimens