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Manual de Plantas de Costa Rica

Main | Family List (MO) | Family List (INBio) | Cutting Edge
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The Cutting Edge

Volume XXVI, Number 3, July 2019

News and Notes | Leaps and Bounds | Germane Literature | Season's Pick

BURMANNIACEAE. This just in—thanks to Willow Zuchowski: photos taken by David A. Rodríguez Arias, one of the local guides at Monteverde, are undoubtedly a sp. of Thismia. The coloration is maybe a bit unexpected (yellow instead of purple) and the lobing of the throat is hard to see, but most likely it is T. panamensis (Standl.) Jonker. David has promised to go back to the private reserve where he found the plant, and see if he can get permission to make us a specimen for closer examination and to voucher this report..he did! The only other sp. of Thismia reported in the Manual Burmanniaceae treatment (2003, H. Maas-van de Kamer & P. J. M. Maas), T. luetzelburgii Goebel & Suess., has the linear tepals swollen at the tip. Both of these spp. were known here only from the Península de Osa and below 750 m elevation. This plant, found on the Pacific slope of the Cordillera de Tilarán in the vicinity of Monteverde, at ca. 1350 m, is a great leap beyond that. Global warming?

HALORAGACEAE. The Manual treatment of this family (2007) by Garrett E. Crow included just one sp., Myriophyllum aquaticum (Vell.) Verdc. The occurrence of the genus Proserpinaca in Costa Rica was deemed plausible, even as an earlier report of P. pectinata Lam. from the country was debunked as actually pertaining to M. aquaticum. Now it seems that Proserpinaca has indeed turned up in Tiquicia, albeit in the guise of a different sp., P. palustris L. (previously known from Guatemala, El Salvador, and Colombia, among other places). This was found in Laguna Congo, at 1800 m in Parque Nacional Juan Castro Blanco, in the western Cordillera Central (we know not which slope). We are unable to cite a voucher (Esteban Jiménez may have been involved in the discovery), but have seen a color photograph and know that Daniel Santamaría assisted in the identification (both of which inspire confidence).

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