(c) Species occurring in America to the exclusion of the Old World.—Dioclea violacea, Mucuna urens, Rhizophora mangle.
(d) Species found only in Polynesia.—Canavalia sericea, Mucuna platyphylla(?), Cynometra grandiflora, Serianthes myriadenia, Parinarium laurinum(?), Premna tahitensis.
Remarks.—Of these seventy plants there is not one that has not come within the scope of my observations and experiments. The West Coast of Africa is included in the American region for reasons given in [Chapter VIII]. For the other authorities on the buoyancy of these seeds and fruits reference should be made to the list given under [Note 2] and to other parts of this work. About one or two of the plants, like Ipomœa peltata, one scarcely knows whether they are most characteristic of the coast-flora or of the inland-flora.
NOTE 36 (page [72])
Hawaiian Plants with Buoyant Seeds and Fruits known to be dispersed by the Currents either exclusively or, as in a few Species, with the Assistance of Frugivorous Birds
Colubrina asiatica.—Usually regarded as confined to the Old World; but since nearly all the species are American, that continent may be considered as the probable home also of this species. Hillebrand gives it a locality in the West Indies.
Dioclea violacea.—Tropical America.
Mucuna gigantea.—Old World.
Mucuna urens.—America, and extending to the African West Coast, which is to be included in the American region of shore-plants.
Strongylodon lucidum.—Old World.
Vigna lutea.—Old and New Worlds.