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Jessea and Talamancalia, Two New Genera of the Senecioneae (Asteraceae) from Costa Rica and Panama

Harold Robinson and José Cuatrecasas
Novon
Vol. 4, No. 1 (Spring, 1994), pp. 48-52
DOI: 10.2307/3391700
Stable URL: http://www.jstor.org/stable/3391700
Page Count: 5
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Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Jessea and Talamancalia, Two New Genera of the Senecioneae (Asteraceae) from Costa Rica and Panama
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Abstract

Two new genera from Costa Rica and Panama, Jessea and Talamancalia, are described. Both genera have elongate corolla lobes, styles with paired stigmatic lines and narrowly rounded penicillate-haired tips, small papillose cells on the achene surface, and neither has tails on the anthers. Jessea has a spiciferous receptacle and carpopodia with many rows of cells. Jessea includes Senecio cooperi, S. megaphyllus, and S. multivenius, with the last as type; the appropriate new combinations are made herein. Talamancalia has mucilage hairs on the achene and carpopodia nearly obsolete. The genus includes Talamancalia boquetensis (Standley) H. Robinson & J. Cuatrecasas and the new species, T. westonii, with the latter as type.

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