A phylogeny of Cariniana (Lecythidaceae) based on morphological and anatomical data 2 3 YA-YI HUANG!, SCOTT A. MORI , AND GHILLEAN T. PRANCE 1 The New York Botanical Gardenffhe City University of New York, Bronx, New York, NY 10458-5126, USA; e-mail:
[email protected] zInstitute of Systematic Botany, The New York Botanical Garden, Bronx, New York, NY 10458 5126, USA; e-mail:
[email protected] 3 The Old Vicarage, Silver Street, Lyme Regis, Dorset, UK; e-mail:
[email protected] Abstract. Cariniana as previously circumsclibed is a genus of 16 species restricted to neotropical forest habitats on well-drained sites. A phylogenetic analysis of the genus based on 33 morphological and anatomical characters was undertaken. The results show that Cariniana consists of two clades: the AllantomalCariniana decandra clade includes Allantoma lineata and seven species of actinomorphic-flowered Cariniana and is characterized by 5-merous flowers, camose petals, incurved petal apex, scarcely lobed calyces, eucamptodromous secondary veins, dichotomizing venation, and poorly developed areolation; the C. legalis clade is made up of nine species and is characterized by an obliquely zygomorphic androecium, reticulate tertialy venation, and anomocytic stomata. The actinomorphic-flowered Cariniana are more closely re lated to the monotypic Allantoma lineata than they are to the species of the C. legalis clade. In order to reflect these relationships, Cariniana is divided into two genera: species in the C. legalis clade, which includes the generic type C. legalis, remain as Cariniana while species of Cariniana in the AllantomalCariniana decandra clade are transferred to Allantoma. The following new combinations are proposed: AIIantoma decandra, A.