1. Baylis, G. T. S., McNabb, R. F. R., and Morrison, T. M., The mycorrhizal nodules of podocarps. Trans. Brit. Mycol. Soc.46, 378?384 (1963).
2. Becking, J. H., Der Anbau vonPinus Merkusii in den Tropen. Schweiz. Z. Forstw.101, 181?191 (1950).
3. Bergersen, F. J. and Costin, A. B., Root nodules onPodocarpus lawrencei and their ecological significance. Australian J. Biol. Sci.17, 44?48 (1964).
4. Bottomley, W. B., The root-nodules of the Podocarpeae. Brit. Assoc. Advance Sci. Rep.82, 679 (1912).
5. Janse, J. M., Les endophytes radicaux de quelques plantes javanaises. Ann. Jardin Botan. Buitenzorg14, 53?201 (1897).