Translator Disclaimer
1 June 2012 When field botany meets history: taxonomy of Platanus mexicana in Mexico
Author Affiliations +
Abstract

The recently described Platanus mexicana var. interior of Nixon & J. M. Poole is critically evaluated. We show that the type of the name P. mexicana, collected by Berlandier in 1827, is virtually identical to morphotypes typically found within the range of P. mexicana var. interior. The reason for the taxonomic confusion is twofold: the variability of the abaxial leaf tomentum across the distribution range of P. mexicana and uncertainties concerning the type locality of P. mexicana. Field observations at the type locality of P. mexicana var. interior and throughout the range of P. mexicana show that the morphotype represented by the holotype is rarely found in the main distribution range of P. mexicana in Veracruz, Puebla, Oaxaca and Chiapas. Our findings are corroborated by the historical evidence: in his “Journey to Mexico”, Berlandier, travelling from Tampico to Mexico City, did not reach the distribution area of P. mexicana var. mexicana in the sense of Nixon & J. M. Poole. This suggests that the holotype of P. mexicana and P. mexicana var. interior originate from the same area (northern Querétaro, northern Hidalgo) and hence, that the latter name is superfluous. The relevance of infraspecific taxa within P. mexicana and their delimitation against closely related taxa to the north is discussed in the light of morphological and recently published genetic evidence from original stands.

See the PDF.

References

1.

G. Besnard , A. Tagmount , P. Baradat , A. Vigououx & A. Bervillé 2002: Molecular approach of genetic affinity between wild and ornamental Platanus. —  Euphytica 126: 401–412. Google Scholar

2.

G. W. Grimm & T. Denk 2008: ITS evolution in Platanus: homoeologues, pseudogenes, and ancient hybridization. —  Ann. Bot. 101: 403–419. Google Scholar

3.

G. W. Grimm & T. Denk 2010: The reticulate origin of modern plane trees (Platanus, Platanaceae) — a nuclear marker puzzle. —  Taxon 59: 134–147. Google Scholar

4.

L. J. Hickey 1973: Classification of the architecture of dicotyledonous leaves. —  Amer. J. Bot. 60: 17–33. Google Scholar

5.

M. Martens & H. Galeotti 1843: Enumeratio synoptica plantarum phanerogamicarum ab Henrico Galeotti in regionibus Mexicanis collectarum. — Bull. Acad. Roy. Sci. Bruxelles 10: 341–361. Google Scholar

6.

J. McNeill, F. R. Barry, H. M. Burdet, V. Demoulin, D. L. Hawksworth, K. Marhold, D. H. Nicolson, J. Prado, P. C. Silva, J. E. Skog, J. H. Wiersema & N. J. Turland 2007: International Code of Botanical Nomenclature (Vienna Code). — Regnum Veg. 146, online at  http://www.ibot.sav.sk/icbn/main.htmGoogle Scholar

7.

M. E. S. Moricand 1837: Plantes nouvelles d'Amérique, livr. 3. — Genève: Jules-Guillaume Fick. Google Scholar

8.

K. C. Nixon & J. M. Poole 2003: Revision of the Mexican and Guatemalan species of Platanus (Platanaceae). — Lundellia 6: 103–137. Google Scholar

9.

S. M. Ohlendorf, C. H. Muller & K. K. Muller 1980: Jean-Louis Berlandier: Journey to Mexico during the years 1826–34. — Austin: Texas State Historical Association. Google Scholar

10.

M. Pilotti , B. Brunetti , L. Tizzani & O. Marani 2009: Platanus × acerifolia genotypes surviving to inoculation with Ceratocystis platani (the agent of canker stain): first screening and molecular characterization. —  Euphytica 179: 1–17. Google Scholar

11.

P. C. Standley 1922: Trees and shrubs of Mexico (Fagaceae-Fabaceae). Platanaceae. — Contrib. U.S. Natl. Herb. 23: 319–320. Google Scholar
© 2012 BGBM Berlin-Dahlem.
Thomas Denk, Guido W. Grimm, and Anne-Katrin Röseler "When field botany meets history: taxonomy of Platanus mexicana in Mexico," Willdenowia 42(1), 99-115, (1 June 2012). https://doi.org/10.3372/wi.42.42113
Published: 1 June 2012
JOURNAL ARTICLE
17 PAGES


SHARE
ARTICLE IMPACT
Back to Top