NIGERIA 197 



Leguminos^ : Tetrapleura Thonningii, Piptadenia Africana, Ery- 

 throphloeum Guineense, Cynometra Vogelii, Pterocarpus esculentus, 

 Dialium Guineense, Millettia sp. near M. Sanagana and other species 

 of Millettia, Cordyla Africana, Berlinia Heudelotii, Cmsalpinia 

 Bonducella, Lonchocarpus cyanescens, Baphia pubescens and B. nitida. 



RosACEiE : Parinarium subcordatum. 



CoMBRETACE^ : Several species of scarlet-flowered Combretum of 

 climbing habit — C. racemosuni, G. constrictum, etc. 



Myrtace^ : Napoleona Vogelii. 



RuBiACE^ : Morinda citrifolia, Cuviera acutiflora, Canthium 

 Vanguerioides, Ixora radiata, Uncaria Africana, Oxyanthus unilocularis, 

 some species of Musscenda, etc. 



Rhizophorace^ : Weihea Africana. 



Sapotace^ : Mimusops sp. 



Apocynace^ : Voacanga obtusa and F. Africana, Landolphia 

 Owariensis and other spp., Carpodinus hirsuta, Plenisceras Barteri, 

 and the tree Wadda, Rauivoljia sp. near R. Welivitschii. 



Loganiace^ : Anthocleista Vogelii. 



Convolvulace^ : Calonyction speciosum, Merremia umbellata, etc. 



Btgnoniace^ : Spathodea campanulata. 



AcANTHACE^ : Acanthus montanus, Asystasia Coromandeliana, etc. 



Verbenace^ : Vitex chrysocarpa and V. Angolensis. 



PiPERACE^ : Piper umbellatum and Piperomia p)ellucida. 



Gesnerace^ : Streptocarpus nobilis. 



EuPHOBBiACE^ : Alchornea cordate, Mallotus oppositifolius. 



Horaces : ChloropJwra excelsa, Ficus Vogelii and other spp.^ 

 Myrianthus serratus. 



Ulmace^ : Trema Guineensis. 



Ampelide^ : Leea Guineensis. 



PoLYGALACE^ : the cultivated Polygala butyracea and the dwarf 

 species, P. Clarkeana. 



Balanophorace^ : the root-parasite Thonningia sanguinea. 



Amongst Monocotyledonous Orders the Scitaminece are more in 

 evidence, Palisota thyrsiflora {Commelinacece) appears (along with a 

 Begonia on moist rocks — B. rostrata), and the water-loving Aroid, 

 Cyrtosperma Senegalense. 



The Oil Palm, Elceis Guineensis, becomes locally common, ferns 

 become epiphytic, and the Elk's-horn fern, Platycerium jEthiopicum, 

 appears. 



Northwards the savannah forests, with plenty of broad-leaved trees 

 and shrubs, or the open park-like formations with surface well covered 

 with grasses and herbs, give way in some places to still drier Acacia 

 forests, and in others to open areas of scrub, nearly treeless, the soil 



