NIGERIA 191 



edible herbs allied to jute, and by shrubby weeds of the genus 

 Triumfetta. 



SiMARUBACEiE by Haunoa undulata, a small-sized tree characteristic 

 of the region, and by Irvingia Smithii, a tree more abundant in the 

 South. 



BuRSBRACE.^ by two species of frankincense-tree — BoswelUa 

 Dalzielii and B. odorata — and by Commiphora Kerstingii, a green-barked 

 tree familiar as an enclosure fence in towns. 



Meliace^ by Khaya Senegalensis, the mahogany of the Soudan 

 Zone, by Trichilia emetica, and by Pseudocedrela Kotschyii ; also by 

 the naturalized Kurnan nasara, Melia Azedarach. 



Olacace.s; by the Tsada, Ximenia Americana, a shrub with small 

 yellow, acid plums, and by the evergreen climbing shrub, Opilia cel- 

 tidifolia. 



Celastraceje typically by the shrub Gymnosporia Senegalensis, 

 and less by two or more species of woody twining Hippocrates. 



Sapindace^ by the woody twiner Paullinia pinnata, the 3-foliate 

 shrub Schmidelia Africana, and the world-wide twining weed Cardio- 

 spermum Halicacabum. 



Anacardiaceje by the tree Odina Barteri, by other species of 

 Odina of more local distribution, and by two species of Annsphrenium. 



CoNNARACE^ by the abundant little shrub Byrsocarpus coccineus. 



PROTEACEja by a single species of Proiea, a shrub with large capitate 

 flowers, of local distribution in the Central areas. 



PoLYGALACE^ by Securidaca longipedunculata and the field weed 

 Poly gala arenaria. 



Leguminos^ by — 



Larger trees : the Maji or Kadaura, Paradaniellia Oliveri, and 

 the Kawo, Afzelia Africana. 



Medium-sized and smaller trees : Parkia filicoidea, Prosopis 

 oblonga, Pterocarpus erinaceus, Isoberlinia doka, Berlinia acuminata 

 in ravines, Tamarindus Indica ; several Acacias, e.g. A. Sieberiana, 

 A. campylacantha, A. Arabica ; Albizzia Chevalieri, Entada Sudanica ; 

 Afrormosia laxiflora and Burkea Africana. 



Small trees and shrubs : Detarium Senegalense, Bauhinia reticulata 

 and B. rufescens, Erythrina Senegalensis, Lonchocarpus laxiflorus, 

 Dichrostachys nutans. Mimosa asperata on stream-banks. Cassia Sieberi- 

 ana, C. Kotschyana and others, along with several shrubby species 

 of Cassia and the dwarf C. mimosoides, Swartzia Madagascariensis, 

 Ormocarpum bibracteatum. 



To these must be added the Zamarke, Sesbania punctata, and other 

 spp., and a host of herbaceous plants or half woody undershrubs, 

 chiefly belonging to the genera Crotalaria, Indigofera, and Tephrosia, 

 others of Desmodium Eriosema, etc., and twiners of Vigna and 

 Bhynchosia. 



