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Manual de Plantas de Costa Rica

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The Cutting Edge

Volume XIII, Number 3, July 2006

News and Notes | Recent Treatments | Germane Literature | Season's Pick | Annotate your copy

ORCHIDACEAE.  We inexplicably missed the following very important taxonomic paper on the genus Cyrtopodium:

Romero-González, G. A. & G. Carnevali Fernández-Concha.  1999.  Notes on the species of Cyrtopodium (Cyrtopodinae, Orchidaceae) from Florida, the Greater Antilles, Mexico, Central America and northern South America.  Harvard Pap. Bot. 4: 327-341

According to these authors, Cyrtopodium paniculatum (Ruiz & Pav.) Garay, the name used in the Manual for the sole Costa Rican member of the genus, correctly applies to a sp. found only at elevations above 1000 m in Andean South America.  Moreover, C. punctatum (L.) Lindl., another name that has been widely used in Central America, is here applied to a sp. ranging from Florida through the Antilles to northern South America.  Our sp. (which occurs mostly below 100 m) receives the binomial Cyrtopodium macrobulbon (Lex.) G. A. Romero & Carnevali (as “macrobulbum”), a new combination based on Epidendrum macrobulbon Lex., and is said to range from Mexico to Panama “and possibly... Venezuela.”  We don’t know whether Manual Orchidaceae coordinator Robert L. Dressler was also unaware of this article, or simply disagreed with its conclusions; whatever the case, though, we ought to have cited this paper.  Likewise, we profess ignorance of contributor John T. Atwood’s stance with respect to the following paper, which also ought to have been cited in the Manual:

Christenson, E. A.  2002.  On the identity of Trigonidium seemannii Rchb. f. (Orchidaceae).  Kew Bull. 57: 503–504.

Here the author makes a very persuasive case that the type of Trigonidium seemannii Rchb. f., a name cited as a synonym of T. egertonianum Bateman ex Lindl. in the Manual, is instead conspecific with T. riopalenquense Dodson, used as an accepted sp.-name in the Manual.  However, T. seemannii is much older than T. riopalenquense, and so must replace it.  Atwood, as it turns out, had not seen the actual holotype of T. seemannii, only a tracing of it.

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