TY - JOUR
T1 - Poa matri-occidentalis (Poaceae: Pooideae: Poeae: Poinae), a new species from Mexico
AU - Peterson, Paul M.
AU - Soreng, Robert J.
AU - Arrieta, Yolanda Herrera
PY - 2006/11/23
Y1 - 2006/11/23
N2 - Poa matri-occidentalis P.M. Peterson & Soreng, sp nov., is described and illustrated. Poa matri-occidentalis subsp. matri-occidentalis is known from steep rocky slopes of Cerro Gordo, Durango, and Poa matri-occidentalis subsp. mohinorensis Soreng & P.M. Peterson, subsp. nov. is known from rocky cliffs of Cerro Mohinora, Chihuahua. The new species is morphologically similar to Poa kelloggii but differs by having leaf sheaths that are closed near the base 2/3 to 4/5 their length, entire ligules that are 3.5-6 mm long, nodding panicles, ovate lemmas with obtuse to acute apices, and non-visible rachilla internodes. A key distinguishing 11 species now reported from northern México is provided.
AB - Poa matri-occidentalis P.M. Peterson & Soreng, sp nov., is described and illustrated. Poa matri-occidentalis subsp. matri-occidentalis is known from steep rocky slopes of Cerro Gordo, Durango, and Poa matri-occidentalis subsp. mohinorensis Soreng & P.M. Peterson, subsp. nov. is known from rocky cliffs of Cerro Mohinora, Chihuahua. The new species is morphologically similar to Poa kelloggii but differs by having leaf sheaths that are closed near the base 2/3 to 4/5 their length, entire ligules that are 3.5-6 mm long, nodding panicles, ovate lemmas with obtuse to acute apices, and non-visible rachilla internodes. A key distinguishing 11 species now reported from northern México is provided.
UR - http://www.scopus.com/inward/record.url?scp=33846213511&partnerID=8YFLogxK
M3 - Artículo
SN - 0036-1488
VL - 22
SP - 905
EP - 914
JO - SIDA, Contributions to Botany
JF - SIDA, Contributions to Botany
IS - 2
ER -