Czeczuga, B., Mendez, A.M., and López-Figueiras, M. 1997d. Carotenoids in terrestrial, epilithic and epiphytic lichens from Venezuelan Andes. Feddes Repert. 108:169-183. |
|
Czeczuga, B., Beckett, R.P., and Pienaar, R.N. 1988a. Investigations on carotenoids in lichens. XVIII. Carotenoid content in certain lichens from southern Africa. S.A. J. Bot. 54:571-574. |
|