TY - JOUR
T1 - Arbutus Bicolor (Ericaceae, Arbuteae), a new species from Mexico
AU - González-Elizondo, M. Socorro
AU - González-Elizondo, Martha
AU - Sørensen, Paul D.
PY - 2012
Y1 - 2012
N2 - Arbutus bicolor S. González, M. González et P. D. Sørensen, sp. nov. is described and illustrated. It is related to A. xalapensis H.B.K. and has been generally misidentified as A. glandulosa M. Martens & Galeotti, a synonym of the latter name. The new species is distinguished by having densely glandular pubescent branchlets and petioles; markedly bicolored leaves that are whitish to pale ochroleucous below due to a dense and uniform indument of tightly curled hairs, leaves red at senescence; and pink, rarely white flowers. Arbutus bicolor is widely distributed in the Sierra Madre Occidental and the Transvolcanic Belt and reaches the western slopes of the Sierra Madre Oriental in central Mexico. Sporadic hybridization occurs with A. madrensis S. González, A. occidentalis McVaugh & Rosatti, A. tessellata Sørensen, and A. xalapensis. A key to distinguish A. bicolor from other Mexican tree species of Arbutus is provided.
AB - Arbutus bicolor S. González, M. González et P. D. Sørensen, sp. nov. is described and illustrated. It is related to A. xalapensis H.B.K. and has been generally misidentified as A. glandulosa M. Martens & Galeotti, a synonym of the latter name. The new species is distinguished by having densely glandular pubescent branchlets and petioles; markedly bicolored leaves that are whitish to pale ochroleucous below due to a dense and uniform indument of tightly curled hairs, leaves red at senescence; and pink, rarely white flowers. Arbutus bicolor is widely distributed in the Sierra Madre Occidental and the Transvolcanic Belt and reaches the western slopes of the Sierra Madre Oriental in central Mexico. Sporadic hybridization occurs with A. madrensis S. González, A. occidentalis McVaugh & Rosatti, A. tessellata Sørensen, and A. xalapensis. A key to distinguish A. bicolor from other Mexican tree species of Arbutus is provided.
KW - Arbutus glandulosa
KW - Arbutus xalapensis
KW - Hybridization
KW - Madrone
KW - Systematics
UR - http://www.scopus.com/inward/record.url?scp=84865552778&partnerID=8YFLogxK
U2 - 10.21829/abm99.2012.19
DO - 10.21829/abm99.2012.19
M3 - Artículo
AN - SCOPUS:84865552778
SN - 0187-7151
VL - 99
SP - 55
EP - 72
JO - Acta Botanica Mexicana
JF - Acta Botanica Mexicana
IS - 1
ER -