The structure of the paracladial zone in Poaceae

Abstract
Summary: Vegetti, A. C. & Weberling, F.: The structure of the paracladial zone in Poaceae. – Taxon 45: 453‐460. 1996. – ISSN 0040‐0262.Terms are proposed to designate different subzones and regions within the paracladial zone of the inflorescence, in the Poaceae. In some taxa the inflorescence is composed of short paracladia only. In others the main axis bears short paracladia in the distal region and long paracladia in the proximal region, so that two subzones can be distinguished. In general the inflorescences of grasses lack bracts other than those belonging to the spikelets. In the Andropogoneae, however, some inflorescences have long paracladia that lack bracts and prophylls but others have long paracladia with well developed bracts and prophylls. The former are designated as “long paracladia without trophotagma”, and the latter as “long paracladia with trophotagma”.