A New Species of Tarigidia (Poaceae, Panicoideae, Paniceae) from Puerto Rico and Additional Evidence for a Hybrid Origin of the Genus

作者：Vega Andrea S^*; Rugolo de Agrasar Zulma E; Axelrod Franklin S

来源：Systematic Botany, 2010, 35(1): 96-101.

DOI：10.1600/036364410790862524

• Anthephora
• Digitaria
• hybrid origin
• phylogeny
• Tarigidia

A new species of Tarigidia from Puer to Rico is described and illustrated. Additional a micromorphological characters of the inflorescence and spikelets are included. This species constitutes the first report of the genus Tarigidia in the New World. Tarigidia axelrodii together with Anthephora hermaphrodita and Digitaria bicornis, showing intermediate characters. This species gives additional evidence to support port Loxton's hypothesis that Tarigidia is derived from hybridization between Anthephora and Digitaiia and also supports the phylogenetic hypothesis showing close relationships between Anthephora and Digitaria.

• 出版日期2010-3