EXOMORPHOLOGY AND INTERNAL STRUCTURE OF CYPSELAS OF SEVEN SPECIES OF THE TRIBE CARDUEAE (COMPOSITAE)
Abstract
Cypselar morpho-anatomy is very helpful for the separation of taxa, when flowering condition is unavailable i.e. fruiting condition is available. For this purpose, cypselas of seven species belonging to five genera (Arctium lappa, Cirsium arvense , Cirsium candelabrum, Cirsium heleniodes, Mantisa
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