These links won't work for most people, sorry. Will post more info soon.
Alkaloids from Boophone disticha with affinity for the serotonin transporter
https://0-www.thieme-connect.com.library.newcastle.edu.au/ejournals/abstract/plantamedica/doi/10.1055/s-0028-1084063
A preliminary inventory of plants used for psychoactive purposes in southern African healing traditions
http://www.informaworld.com/smpp/content~db=all~content=a921267239
Review on plants with CNS-effects used in traditional South African medicine against mental diseases
http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B6T8D-4T72WVG-5&_user=915767&_coverDate=10%2F28%2F2008&_rdoc=1&_fmt=high&_orig=search&_sort=d&_docanchor=&view=c&_searchStrId=1420657713&_rerunOrigin=google&_acct=C000047922&_version=1&_urlVersion=0&_userid=915767&md5=b64318190e53c794a3a42440f720a037
Mmmmm Boophone sp!