Molecular phylogenetic analyses based on numerous plant accessions have shown that Cucumis comprises 25 species in Asia, the Malesian region, and Australia, rather than just two as traditionally thought. Among the 25 species several are new, and here we describe four from tropical Australia. The new species C. costatus, C. queenslandicus, C. umbellatus, and C. variabilis are illustrated, their distributions are mapped based on 7–50 collections per species, and information is provided on habitats and conservation status. We also validate C. althaeoides comb. nov. and C. argenteus comb. nov., update the description of C. picrocarpus, and provide a key to the 11 native and naturalized species of Cucumis occurring in Australia and eastern Malesia. The Australasian species diversity of Cucumis, a genus that until recently was held to be essentially African, is of interest also because Australia harbours the sister species to the commercially important melon, C. melo.
You have requested a machine translation of selected content from our databases. This functionality is provided solely for your convenience and is in no way intended to replace human translation. Neither BioOne nor the owners and publishers of the content make, and they explicitly disclaim, any express or implied representations or warranties of any kind, including, without limitation, representations and warranties as to the functionality of the translation feature or the accuracy or completeness of the translations.
Translations are not retained in our system. Your use of this feature and the translations is subject to all use restrictions contained in the Terms and Conditions of Use of the BioOne website.