The genus Stipa (L.) in Tasmania: Part I - Introduction and identification

Abstract

This paper is the first of a series concerned with the revision of the genus Stipa in Tasmania. Criteria allowing a new approach to identification at the specific level, both in the herbarium and in the field, are described by means of a detailed study of patterns of hook and hair ornamentations found on the adaxial surface of leaf blades. Nine ornamentation patterns are illustrated in conjunction with their associated spikelet forms. Stipa pubescens R.Br. var aphylla Rodway is raised to specific rank and an amended descriptions is presented.