Calliandra ricoana (Leguminosae, Mimosoideae, tribe Ingeae): a new and critically endangered species from Chiapas, Mexico

800x600 Normal 0 21 false false false ES-MX X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Tabla normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Calliandra ricoana , a new species of Leguminosae (Mimosoideae, tribe Ingeae ) , from the state of Chiapas, Mexico is described and illustrated. Critical examination of C. ricoana in comparison with members of Calliandra section Androcallis , series Macrophyllae shows that it is morphologically similar and presumably closely related to C. macqueenii and C. trinervia var. arborea , but it can be distinguished from these and the other members of the series by a combination of characters, namely the arborescent habit, the relatively larger leaflets, the short peduncles, the homomorphic flowers, the longer corollas and the longer, exserted staminal tubes.