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Supplementary descriptions of inflorescence and achene of two species of Elatostema (Urticaceae) from China

摘要


We demonstrate the high value of the inflorescence and achene for taxon delimitation in Elatostema. Over half of the descriptions of the ca 280 species described from China, however, lack information on inflorescence and/or achene morphology and this hampers the progress of species discovery and infrageneric classification. In this paper we supplement the descriptions, illustrations and photos of infructescence and achene of Elatostema binatum and staminate inflorescence of E. fengshanense in order to support future taxonomic revisions of this species-rich genus. In addition, we assessed the extinction threat of these species.

參考文獻


Fu, L.-F., S.-L. Huang, Y. Liu, V. T. Do, F. Wen and Y.-G. Wei. 2014b. A newly recorded species of Elatostema (Urticaceae) from Vietnam. Taiwania 59(3): 281-286.
Fu, L.-F., V. T. Do, F. Wen and C.-X. He. 2014a. Elatostema arcuatobracteatum (Urticaceae), a new species from Vietnam. Phytotaxa 174(2): 111-115.
Fu, L.-F., A. K. Monro, S.-L. Huang, F. Wen and Y.-G. Wei. 2017. Elatostema tiechangense (Urticaceae), a new cave-dwelling species from Yunnan, China. Phytotaxa 292(1): 085-090.
Fu, L.-F., A. Monro, V. T. Do, M. S. Nuraliev, L. V. Averyanov, F. Wen, Z.-B. Xin, T. V. Maisak, A. N. Kuznetsov, S. P. Kuznetsova, K. S. Nguyen and Y.-G. Wei. 2019. Checklist to the Elatostema (Urticaceae) of Vietnam including 19 new records, ten new combinations, two new names and four new synonyms. PeerJ 6: e6188.
Monro, A. K., N. Bystriakova, L. Fu, F. Wen and Y. Wei. 2018. Discovery of a diverse cave flora in China. Plos One 13(2): e0190801.

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