The first paper of this series' was devoted to an ecological description of University Woods, in Champaign County, Illinois, and to a general discussion of social disjunctive symbiosis as exhibited therein. It is the purpose of the present installment to discuss briefly some instances of nutritive disjunctive symbiosis and their effect on the vegetation in this same woods. It should be understood that this is not intended as an exhaustive treatment of the subject, which would require many years of observation and study. The purpose is rather to present the relatively few examples that have been studied during the past few years, not only as a contribution to our knowledge of symbiosis, but also to illustrate what kinds of phenomena should be included under nutritive disjunctive symbiosis.