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Cytological and morphological studies on Nigerian species of Portulaca (Portulacaceae) in relation to their taxonomy
Author(s) -
Nyananyo Bio Louis,
Okoli Bosa E.
Publication year - 1987
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.19870981106
Subject(s) - portulaca , gross morphology , taxonomy (biology) , botany , biology , morphology (biology) , plant morphology , zoology , anatomy
Abstract The gross morphology, seed morphology and palynology of the four species of Portulaca in Nigeria have been studied. The colour and number of the corolla, stomatal types and seed coat morphology are of taxonomic importance. The mitotic chromosomes of two species, P. oleracea (2n = 54) and P. grandiflora (2n = 18) are described. A key to the species is provided.