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Revision of Launaea Cass. (Compositae) in Egypt with special references to cypselar diversity
Author(s) -
Zareh Momen M.,
Faried Ahmed M.,
Mohamed Mona H.
Publication year - 2016
Publication title -
feddes repertorium
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.24
H-Index - 25
eISSN - 1522-239X
pISSN - 0014-8962
DOI - 10.1002/fedr.201400010
Subject(s) - achene , taxon , biology , botany , identification key , key (lock) , taxonomy (biology) , ecology
A systematic revision for the species of Launaea Cass. in Egypt has revealed the presence of fourteen taxa belonging to 12 species, of which L . acanthodes (Boiss.) Kuntze is a new recorded. One new combination “ L. fragilis subsp. tenuiloba (Boiss.) Zareh & Mohamed” is made. Achene diversity of the studied taxa of Launaea was studied using light and scanning electron microscopy. The taxonomic relationships between the studied taxa were discussed as well as SEM micrographs of achenes are provided. Synonyms and key for the identification of the investigated taxa based on morphological characters as well as notes on distribution are provided.