458 FORESTRY OF WEST AFRICA. 



dyeing purple and red colours, and also occasionally 

 as tests for acids and alkalis. A decoction of Orchella 

 weed is said to possess mucilaginous, emollient and 

 demulcent properties, and to be useful in coughs and 

 catarrhs and in other cases where such properties are 

 required. — 'Medicinal Plants,' Bentley and Trimen, 

 vol. iv.. No. 301. 



Distribution : Upper Guinea, Cape Verd Islands. 



