Patterns of flower microstructural variation within the genus bromus

摘要

Twenty five species from four sections of the genus bromus were evaluated by means of numerical analyses of characters of flower microstructures (lodicule, lemma, palea). Special development of lodicules (lobe and hairiness) and both glumellae (lemma and palea) similar in grasses evolutional close (Bromeae, Brachypodieae, Triticeae) was discovered. For most of the characters the original inter specific and intersectional relations were observed in a space of minimum spanning tree (MST).