TY - JOUR
T1 - El complejo Agave victoriae-reginae (Agavaceae)
AU - González-Elizondo, M. Socorro
AU - González-Elizondo, Martha
AU - López-Enríquez, Irma L.
AU - Reséndiz-Rojas, Lorenzo
AU - Tena-Flores, Jorge A.
AU - Retana-Rentería, Flor Isela
PY - 2011
Y1 - 2011
N2 - The name Agave victoriae-reginae has been applied to a group of plants endemic to northern Mexico which are easily distinguished from other species of Agave by having leaves with corneous, entire margins, white lines on both faces and flowers with short, funnelform tubes. A taxonomic revision reveals that A. victoriae-reginae represents a complex of three species, one of them with two subspecies: 1a) Agave victoriae-reginae subsp. victoriae-reginae (western Nuevo León and eastern extreme of Coahuila; 1b) A. victoriae-reginae subsp. swobodae (southern Coahuila and northeastern Durango); 2) Agave nickelsiae (microendemic to southeastern Coahuila); and 3) Agave pintilla (the most westernly distributed species in the group, restricted to southeastern Durango). Agave pintilla is here described as new, the name of A. nickelsiae is reinstated, and A. victoriaereginae is circumscribed. A key to the taxa as well as ammended descriptions for A. victoriae-reginae subsp. victoriae-reginae, A. victoriae-reginae subsp. swobodae and A. nickelsiae are provided. No natural hybrids were found among the taxa of the Agave victoriae-reginae complex but three natural hybrids with other species are recorded: Agave nickelsiae x A. asperrima, A. nickelsiae x A. lechuguilla, and A. pintilla x A. salmiana subsp. crassispina.
AB - The name Agave victoriae-reginae has been applied to a group of plants endemic to northern Mexico which are easily distinguished from other species of Agave by having leaves with corneous, entire margins, white lines on both faces and flowers with short, funnelform tubes. A taxonomic revision reveals that A. victoriae-reginae represents a complex of three species, one of them with two subspecies: 1a) Agave victoriae-reginae subsp. victoriae-reginae (western Nuevo León and eastern extreme of Coahuila; 1b) A. victoriae-reginae subsp. swobodae (southern Coahuila and northeastern Durango); 2) Agave nickelsiae (microendemic to southeastern Coahuila); and 3) Agave pintilla (the most westernly distributed species in the group, restricted to southeastern Durango). Agave pintilla is here described as new, the name of A. nickelsiae is reinstated, and A. victoriaereginae is circumscribed. A key to the taxa as well as ammended descriptions for A. victoriae-reginae subsp. victoriae-reginae, A. victoriae-reginae subsp. swobodae and A. nickelsiae are provided. No natural hybrids were found among the taxa of the Agave victoriae-reginae complex but three natural hybrids with other species are recorded: Agave nickelsiae x A. asperrima, A. nickelsiae x A. lechuguilla, and A. pintilla x A. salmiana subsp. crassispina.
KW - Agavaceae
KW - Agave victoriae-reginae
KW - Endemic
KW - Hybridization
KW - Noah
KW - Taxonomy
UR - http://www.scopus.com/inward/record.url?scp=80054095583&partnerID=8YFLogxK
U2 - 10.21829/abm95.2011.268
DO - 10.21829/abm95.2011.268
M3 - Artículo
AN - SCOPUS:80054095583
SN - 0187-7151
VL - 95
SP - 65
EP - 94
JO - Acta Botanica Mexicana
JF - Acta Botanica Mexicana
IS - 1
ER -