714 RADIATION BIOLOGY 



Bile-duct ligation: Phylloerythrinemia established (Quin, 1933a; 

 Rimington and Quin, 193-4). 



Blockage of bile duct by cyst (Graham and Gordon, 1937). 



Geeldikkop: Poisoning by Tribulus terrestris. Phylloerythrinemia 

 established (Rimington and Quin, 1934). 



Facial eczema: Occurs on mixed pastures during autumn in New Zea- 

 land (Cunningham et al, 1942). Phylloerythrinemia established (Clare, 

 1944). Ether extracts of toxic grass produce lesions in guinea pigs 

 (Perr'metal, 1953). 



Lippia poisoning: L. rehmanni Pears. Toxic principles are of nature 

 of resenic acids; named "icterogenins" (Rimington and Quin, 1937a). 



Lantana poisoning : L. camara. Toxic principles resemble resenic acids ; 

 named ''lantadenes" (Louw, 1943, 1949). 



Lechuguilla poisoning: Agave lechuguilla. Plant contains a saponin 

 causing liver and kidney lesions, but a photosensitizing pigment may be 

 present in the plant (Mathews, 1937). 



Sacahuiste poisoning: Nolina texana (Mathews, 1940). 



Ngaio poisoning: Myoporum laetum. Toxic principle is in the essential 

 oil (Cunningham and Hopkirk, 1945). Phylloerythrinemia established 

 (Clare, unpublished experiments). 



Panicnm poisoning: P. coloratum and P. laevifolium (Rimington and 

 Quin, 1937b). P. effusuni and P. decompositum (Hurst, 1942). P. mili- 

 aceum (Rottgardt, 1944). Phylloerythrinemia with P. miliaceum estab- 

 lished (Clare, unpublished observations). 



Alecrim poisoning: Holocalyx glaziovii (Rocha e Silva, 1940). 



Waterbloom (algae) poisoning: Microcystis flos-aquae (Brandenburg and 

 Shigley, 1947). M. toxica Stephens (Steyn, 1943). Liver toxin is an 

 alkaloid (Louw, 1950). 



Yellowses: Occurs on mixed pasture in Scotland (Greig, 1943). 



Teiradymia poisoning: T. glabrata (Clawson and Huffman, 1937). 

 Petroleum-ether extracts toxic (Fleming et al., 1922). 



Black fever: Kochia scoparium (Rottgardt, 1944). 



Lupin poisoning: Lupinus angustifolius (Brash, 1943). 



Phenanthridinium injection (Bell, 1947). 



Congenital photosensitivity in Southdown sheep: Phylloerythrinemia 

 established (Clare, 1945). 



PHOTOSENSITIVITY OF UNCERTAIN ETIOLOGY 



There have been numerous reports of photosensitization, often associ- 

 ated with specific plants, which cannot be definitely assigned to either 

 the primary or hepatogenous types on the meager information available. 

 It is probable that most of these diseases belong to the primary type, 

 since obvious signs of liver damage have not been reported, but it is 

 possible that some of them are due to a transient specific derangement of 



