The following new species, all related to the Somali endemicJatropha nogalensisin/. sect.Spinosasubsect.Spinosae, are described and illustrated: J.humifusa(coastal dunes of central Somalia),J. inaequispina(north‐central Somalia, on limestone), and J.collinaand J.spinosissima(both rocky ground in north‐eastern Somalia). A hybrid between J.humifusaand the rather distantly relatedJ. pelargoniifoliais repor
展开▼
