Morphology, Palynology, Nutlet and Seed micromorphology of reported Salvia viridis (Lamiaceae) in Libya

Abstract

Salvia viridis L. was first collected from (Telmayta) Libya. The species is an annual herb usually distributed at the field road sides. Morphological characteristics of leaves, calyxes, corollas and types of stamens are useful for sectional and specific delimitation in Salvia. In this study, micromorphological characteristics of the pollen and the nutlet of this species have been investigated using Scanning Electron Microscopy (SEM). The pollen grains are hexacolpate, radially symmetrical, isopolar and suboblate. Their exine sculpturing is bireticulate. In addition, size, shape and ornamentation of nutlets and seeds are diagnostic.