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Parasenecio sylviaensis (Asteraceae, Senecioneae), a long misidentified new species from Taiwan

摘要


Parasenecio sylviaensis S.W. Chung & T.C. Hsu (Asteraceae, Senecioneae), a new species from Taiwan, is described and illustrated. The new species has long been misidentified as P. hwangshanicus (Y. Ling) C. I Peng & S. W. Chung but is indeed distinct in having wingless petioles and capitula with 4-7 florets. It is also similar to P. petasitoides (H. Lév.) Y. L. Chen but distinguishable in having much smaller habit, paniculate synflorescence and shorter puberulent phyllaries. P. sylviaensis is endemic to Taiwan where it is restricted to the high-altitude Abies forests around the Xueshan region.

參考文獻


Chen, Y.S. 2011a The identity of Parasenecio subglaber (Asteraceae) from China. Ann. Bot. Fenn. 48: 34-36.
Chen, Y.S. 2011b A new species and a new combination in Parasenecio (Asteraceae). Ann. Bot. Fenn. 48: 166-168.
Grant, J.R. 1993 A new combination for the single American element of Parasenecio (Asteraceae: Senecioneae). Novon 3:154–155.
Liu, Y., C.I Peng and Q.E. Yang. 2007 Validation of the name Parasenecio morrisonensis (Compositae-Senecioneae) for a species endemic to Taiwan. Taxon 56: 583-584.
Ren, C., Y. Hong, L. Wang and Q.E. Yang. 2017 Generic recircumscription of Parasenecio (Asteraceae: Senecioneae) based on nuclear ribosomal and plastid DNA sequences, with descriptions of two new genera. Bot. J. Linn. Soc. 184(4): 418-443.

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