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Parasyncalathium J.W. Zhang, Boufford & H. Sun (Asteraceae, Cichorieae): A new genus endemic to the Himalaya–Hengduan Mountains
Author(s) -
Zhang Jian-Wen,
Boufford David E.,
Sun Hang
Publication year - 2011
Publication title -
taxon
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 81
eISSN - 1996-8175
pISSN - 0040-0262
DOI - 10.1002/tax.606012
Subject(s) - asteraceae , genus , endemism , biology , botany , type (biology) , leaflet (botany) , zoology , ecology
A new Himalaya–Hengduan Mountains endemic genus, Parasyncalathium J. W. Zhang, Boufford & H. Sun (Asteraceae, Cichorieae, Lactucinae) is described. Parasyncalathium is based on Syncalathium souliei (Franch.) Y. Ling, originally placed in Lactuca sect. Aggregatae Franch., as L. souliei Franch., then later moved to Syncalathium Lipschitz. Previous published evidence from cytology, molecular phylogeny, and morphology, and especially SEM of cypsela morphology in the present study confirm the difference between Syncalathium souliei and Syncalathium s. str., the latter including the type species of the genus, S.kawaguchii (Kitam.) Y. Ling. Syncalathium s.str. should be placed in subtribe Crepidinae (Asteraceae, Cichorieae); S. souliei , although distinct from other members of the subtribe, remains in Lactucinae where it groups within Lactuca s.l. in the tree topology.