Open AccessLeaf architecture in Quercus subgenus Cyclobalanopsis (Fagaceae) from China
Author(s) -
LUO YAN,
ZHOU ZHEKUN
Publication year - 2002
Publication title -
botanical journal of the linnean society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.872
H-Index - 68
eISSN - 1095-8339
pISSN - 0024-4074
DOI - 10.1046/j.1095-8339.2002.00097.x
Subject(s) - subgenus , fagaceae , biology , botany , taxonomy (biology)
Leaves of 46 species of Quercus subgenus Cyclobalanopsis were studied. A comprehensive description of leaf architecture for subgenus Cyclobalanopsis is provided. Ten leaf architectural characters were examined, including leaf venation type, tooth type, areoles, veinlets and marginal ultimate venation. Four types of venation pattern and three types of teeth are recognized. Evolutionary trends of some leaf architectural features, e.g. venation pattern, tooth type, tertiary veins, areoles and veinlets, are suggested. Based on the comparison of leaf architecture of subgenus Cyclobalanopsis , subgenus Quercus and Trigonobalanus doichangensis , we support the taxonomic treatment of Cyclobalanopsis as a subgenus of Quercus and speculate that subgenus Cyclobalanopsis is relatively primitive within the genus Quercus . © The Linnean Society of London, Botanical Journal of the Linnean Society , 2002, 140 , 283–295.