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Nassella (Gramineae, Stipeae): revised interpretation and nomenclatural changes.
- M. Barkworth
- 1 November 1990
A key to putatively monophyletic groups in American Stipeae and a synopsis of Nassella s.l., involving more than 60 new combinations of Stipa L. described by Spegazzini are presented.
Molecules and Morphology in South American Stipeae (Poaceae)
- M. Barkworth, M. Arriaga, James F. Smith, S. Jacobs, Jesús Valdés-Reyna, B. S. Bushman
- 1 October 2008
Evaluated alternative generic treatments of the South American Stipeae, all of which are based on morphological and anatomical information, provided strong support for the monophyly of only two currently recognized genera, Piptochaetium and Hesperostipa.
Poaceae phytoliths from the Niassa Rift, Mozambique
LEYMUS HOCHST. (GRAMINEAE: TRITICEAE) IN NORTH AMERICA: TAXONOMY AND DISTRIBUTION
Leymus Hochst., a segregate genus of Triticeae, can be recognized morphologically and genomically. Its members exhibit all or all but one ofthe following morphological characterstics: rhizomatous…
Systematics of the Tribe Stipeae (Gramineae) Using Molecular Data
Internal transcribed spacer (ITS) sequences have been determined for a wide range of stipoid grasses (Poaceae, Pooideae, Stipeae). Nardus was confirmed as the most appropriate outgroup. Anisopogon is…
Distribution and diagnostic characters of Nassella (Poaceae: Stipeae)
The distribution and diagnostic characters of Nassella are presented and several new distribution records are documented, making it one of the largest genera in tribe Stipeae.
Resurrection and emendation of Macrochloa (Gramineae: Stipeae)
Morphological and anatomical arguments are presented for recognizing one new genus, Celtica, and one previously described genus, Macrochloa, in the Stipeae, and formal presentation of the generic name Celtica plus combinations for its subspecies, including one newly described subspecies.
North American Stipeae (Gramineae): Taxonomic changes and other comments
- M. Barkworth
Genomically based genera in the perennial Triticeae of North America: identification and membership.