“…Chasmanthera dependens (Morebise et al, 2001); Acanthus montanus (Adeyemi et al, 2004); Bysorcarpus coccineus (Akindele and Adeyemi, 2007), Stereospermum kunthianum (Ching et al, 2009), Sclerocarya birrea (Ojewole, 2004), Harpagophytum procumbens (Mahomed and Oyewole, 2004;Anilkumar, 2010), Tithonia diversifolia (Owoyele et al, 2004), Palisota hirsuta ( Wood et al, 2009;Boakye-Gyasi et al, 2011), Zingiber officinale (Ojewole, 2006;Anilkumar, 2010), Hippocratea indica and Poga oleosa (Ogbole et al, 2007), Securidaca longepedunculata (Ojewole, 2008), Tetrapleura tetraptera (Ojewole, 2009), Parquetina nigrescens (Owoyele et al, 2008), Hunteria umbellate (Adeneye et al, 2011).…”