INCERTAE SEDIS
According to Dr. R. K. Benjamin (personal communication, 1957) and Dr. E. G. Simmons (personal communication, 1957), the phylogenetic position of the following genus is uncertain.
Amphoromorpha blattina Thaxter
Natural hosts.—Cockroaches, Grenada, B.W.I. (Thaxter, 1920): On the axis of the antennae of a dark wingless and a pale winged blattid.
Amphoromorpha sp.
Natural host.—Cockroach, Grenada, B.W.I. (Thaxter, 1920): On antennal setae.
[IX. HIGHER PLANTS]
The significance of many observed associations between cockroaches and the higher plants is still obscure. Undoubtedly many associations are ecological, but lack of adequate supporting evidence makes this conclusion somewhat tentative. The ecological aspects are covered in Section III (p. [14]). Other associations may be accidental (e.g., certain unique observations that have never again been confirmed). In the absence of contrary evidence, most associations are presumed to be benign; exceptions to this conclusion are found among the cockroaches that feed on living plants (p. [162]) and those allegedly captured as prey by the carnivorous pitcher plants (Sarracenia and Nepenthes). In all the records cited below the cockroaches were stated to have been on, in, or feeding on the plant.
The plants are listed below by family according to the taxonomic arrangement of Lawrence (1951). Botanical nomenclature follows Bailey (1925), Fernald (1950), or Dr. R. A. Howard (personal communications, 1958, 1959). We take full responsibility for referring to appropriate taxa certain plants that were reported by common name only in the cited literature.
Division PTERIDOPHYTA
Family CYATHEACEAE