Roegneria: its generic limits and justification for its recognition
Citations Over TimeTop 25% of 1991 papers
Abstract
We document diagnostic characteristics of Roegneria by which it differs from genera with which it has often been confused. Characteristics of Roegneria are the absence of underground runners; slightly curved and elongated rachis with long internodes, each rachis node bearing one spikelet only and often adhering to the internode, and inflorescence appearing more or less one sided because of the disposition of the spikelets; spikelet functionally disarticulating below the glumes; glume symmetric with nerves tapering in the apex; lemma with nerves tapering in the apex; and palea generally shorter than the lemma, and if equal to the lemma then the tip obtuse, truncate, or retuse. Genera difficult to separate from Roegneria are Agropyron, Elymus, and Elytrigia; these share one or more characteristics but none have them in the same combination. We also stress the merit of recognizing Roegneria for germ-plasm utilization. Key words: Roegneria, Triticeae, generic limits, Elymus, Agropyron, Elytrigia.
Related Papers
- → Phylogenetic relationships of Elymus L. and related genera (Poaceae) based on the nuclear ribosomal internal transcribed spacer sequences(2010)16 cited
- → CYTOLOGY, SEED‐SET, AND BREEDING BEHAVIOR OF THE PUTATIVE INTER‐GENERIC HYBRID, AGROELYMUS TURNERI(1961)6 cited
- → Synthetic Agropyron-Elymus Hybrids. I. Elymus canadensis x Agropyron subsecundum(1966)2 cited
- → Cytology, Seed-Set, and Breeding Behavior of the Putative Inter-Generic Hybrid, Agroelymus turneri(1961)
- → An Intergeneric Hybrid (Agropyron X Elymus) and some other Plants from Anticosti Island(1936)