Open AccessPollen morphology of the genus Impatiens L. (Balsaminaceae) and its systematic implications
Author(s) -
Muthulakshmipechiammal Pechimuthu,
R. Arumugam,
Samydurai Ponnusamy
Publication year - 2021
Publication title -
acta biologica szegediensis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.212
H-Index - 28
eISSN - 1588-4082
pISSN - 1588-385X
DOI - 10.14232/abs.2020.2.207-219
Subject(s) - balsaminaceae , impatiens , pollen , genus , reticulate , botany , prolate spheroid , tamil , biology , morphology (biology) , paleontology , physics , linguistics , philosophy , classical mechanics , cultivar
Pollen morphology of 18 species from the genus Impatiens collected from dierent localities in Nilgiris, Tamil Nadu was evaluated using scanning electron microscopy (SEM) during the period of February 2017 to November 2019. From the observation of pollen it was found to be structurally monad; prolate, sub-prolate and prolate-spheroidal in equatorial view; and circular, rectangular, triangular, quinquangular, elliptic and quadrangular in polar view. The apertures varied from dicolpate, tricolpate to tetracolpate. The main ornamentation type was reticulate in most of the species except Impatiens fruticosa which showed echinate ornamentation. The variations in pollen structure within the species were useful for the identication and classication of the genus Impatiens. The high structural diversity renders important taxonomic value for species dierentiation.