Portal de Periódicos da CAPES

Two New Species of Chusquea (Poaceae, Bambuseae) from Northwestern Argentina

2013; American Society of Plant Taxonomists; Volume: 38; Issue: 2 Linguagem: Inglês

10.1600/036364413x666778

1548-2324

Carolina Guerreiro, Zulma E. Rúgolo de Agrasar,

Bamboo properties and applications

Chusquea Kunth (Poaceae, Bambusoideae, Bambuseae) is the largest bamboo genus in the world.Approximately 13 species of Chusquea occur in the southern Andes of Argentina and Chile and all of them are endemic.In the present work, two new species found in high-altitude grasslands of the Andes mountain range in northwestern Argentina, Chusquea egluma and Chusquea floribunda, are described and illustrated.Morphological and anatomical characters are described and two identification keys for the Andean Chusquea species from northwestern Argentina are provided, one based on morphological characters (vegetative and reproductive), and the other on anatomical characters (culm and leaf epidermis and cross section).The new taxa and related species are compared in tables based on characters of taxonomic value.Resumen-Chusquea Kunth (Poaceae, Bambusoideae, Bambuseae) es el ge ´nero de bambu ´es ma ´s grande del mundo.Aproximadamente, 13 especies de Chusquea habitan en los Andes australes de Argentina y Chile, y todos ellos son ende ´micos.En el presente trabajo, se describen e ilustran dos nuevas especies de bambu ´es len ˜osos que habitan en pastizales de altura en los Andes del noroeste de la Argentina, Chusquea egluma y Chusquea floribunda.Se describen caracteres morfolo ´gicos y anato ´micos, y se presentan dos claves de identificacio ´n de las especies andinas de Chusquea del noroeste de la Argentina, una basada en caracteres morfolo ´gicos (vegetativos y reproductivos) y otra, en caracteres anato ´micos (epidermis y seccio ´n transversal caulinar y foliar).Se presentan tablas comparativas de caracteres de valor taxono ´mico de los nuevos taxones y especies relacionadas.