Molecular and Morphological Evidence Reveals a New Species of Antiphytum (Echiochiloideae, Boraginaceae) from Guerrero, Mexico
Por:
Mendoza-Diaz, Nidia, Ochoterena, Helga, Moore, Michael J., Flores-Olvera, Hilda
Publicada:
1 ene 2020
Resumen:
Molecular and morphological evidence supports a new species in the genus Antiphytum from the Sierra Madre del Sur, in the state of Guerrero, Mexico, here described as Antiphytum brevicalyx. This species is unique in the genus by possessing a calyx shorter than the corolla tube at anthesis; it is similar to A. floribundum in inflorescence arrangement, but differs from that species in lacking a basal leaf rosette and having appendages on the corolla throat. According to phylogenetic analysis of nuclear ITS and plastid ndhF-rpl32 sequences representing seven of the eight North American species of the genus besides the proposed new species, accessions of A. brevicalyx form a well-defined clade within Antiphytum, corroborating its distinctive morphology. However, the analyses do not resolve the phylogenetic position of A. brevicalyx within the genus. © 2020 by the American Society of Plant Taxonomists.
Filiaciones:
Mendoza-Diaz, Nidia:
Posgrado en Ciencias Biológicas, Instituto de Biología, Universidad Nacional Autónoma de México, 3er. Circuito Exterior s/n C.P. 04510, Ciudad de México, Mexico
Univ Nacl Autonoma Mexico, Posgrad Ciencias Biol, Inst Biol, 3er Circuito Exterior S-N, Ciudad De Mexico 04510, Mexico
Ochoterena, Helga:
Univ Nacl Autonoma Mexico, Dept Bot, Inst Biol, Apartado Postal 70-233, Ciudad De Mexico 04510, Mexico
Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México, Apartado Postal 70-233 C.P. 04510, Ciudad de México, Mexico
Moore, Michael J.:
Department of Biology, Oberlin College, Oberlin, OH 44074, United States
Oberlin Coll, Dept Biol, Oberlin, OH 44074 USA
Flores-Olvera, Hilda:
Univ Nacl Autonoma Mexico, Dept Bot, Inst Biol, Apartado Postal 70-233, Ciudad De Mexico 04510, Mexico
Departamento de Botánica, Instituto de Biología, Universidad Nacional Autónoma de México, Apartado Postal 70-233 C.P. 04510, Ciudad de México, Mexico
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