The Morphological Evaluation and Taxonomic Value of the Spathe in Najas, with Descriptions of three new Asiatic- Malaysian Taxa

In the course of a revision of the genus Najas for the Flora Malesiana I was confronted with the morphological evaluation of the spathe and with the variability of its occurrence, because this organ has served for the distinction of sections within the subgenus Caulinia. It appeared of interest to publish the result of this work as a separate precursor as the space available in the Flora will not permit a detailed account.