Open Access Open Access  Restricted Access Subscription or Fee Access


DOI: http://dx.doi.org/10.11646/phytotaxa.124.1.4

Heuchera lakelae (Saxifragaceae), a new species from the Sierra La Marta and Sierra Coahuilón, Coahuila and Nuevo León, Mexico

RYAN FOLK

Abstract


Described herein is a new species from high-elevation limestone outcrops in the northern Sierra Madre Oriental, closely allied to Heuchera sanguinea, from which it is distinguished on the basis of 6 morphological characters (external flower surface color and indumentum, petal color, petal shape, stamen exsertion, and overall flower shape) as well restriction to high elevations and a geographical range restricted to the Sierra la Marta and Sierra Coahuilón.

 


Keywords


Saxifragaceae, new species

References


Engelmann, G. (1848) in: Wislizenus, F.A. Memoir of a tour to northern Mexico connected with Col. Doniphan's expedition in 1846 and 1847. Tippin and Streeper, Washington D.C., pp. 107.

Nixon, K.C. & Wheeler, Q.D. (1990) An amplification of the phylogenetic species concept. Cladistics 6: 211–223.
http://dx.doi.org/10.1111/j.1096-0031.1990.tb00541.x

Rosendahl, C.O, Butters, F.K. & Lakela, O. (1936) A monograph on the genus Heuchera. Minnesota Studies in Plant Science 2: 1–180.

Rydberg, P.A. (1905) Heuchera. In: Small, J.K. and Rydberg, P.A. North American Flora. New York Botanical Garden, New York, vol. 23, pp. 97–117.

Soltis, D.E., Soltis, P.S., Collier T.G. & Edgerton, M.L. (1991) Chloroplast variation in the Heuchera group (Saxifragaceae): Evidence for chloroplast transfer and paraphyly. American Journal of Botany 78(8): 1091–1112.
http://dx.doi.org/10.2307/2444898

Torrey, J. (1852) in: Stansbury, H. An expedition to the valley of the Great Salt Lake of Utah. Sampson Low, Son, and Co., Lippincott, Grambo, and Co., London and Philadelphia. p. 388.

Villarreal-Quintanilla, J.A. (2001) XXIII. Flora de Coahuila. Listados Florísticos de México. Universidad Nacional Autónoma de México, Mexico City. 138 pp.

Wells, E.F & Elvander, P.E. (2009) Saxifragaceae. In: Flora of North America Editorial Committee (eds.) Flora of North America North of Mexico. Oxford University Press, New York and Oxford, vol. 8, pp. 43–146.


Refbacks

  • There are currently no refbacks.


ISSN 1179-3155 (print); ISSN 1179-3163 (online)

Published by Magnolia Press, Auckland, New Zealand