Observations on the staining of pectic substances as extracts and in the transfusion tracheids of welwitschia  
Observations on the staining of pectic substances as extracts and in the transfusion tracheids of welwitschia

Creator:   Bean, June E.; Bornman, Chris H. Description:   Publications Publisher:   Journal of South African Botany Date:   1973 Language:   English Subjects:   Welwitschia