Palynological studies of Artemisia linn. from Murree and Hazara
Palynological studies of Artemisia linn. from Murree and Hazara
Abdul Samad Mumtaz, Mir Ajab Khan and Tanweer Akhtar
ABSTRACT
Palynological studies of twelve species of the genus
Artemisia Linn. (family Asteraceae) were analyzed.
Pollen grains in each species differ, especially of
those, which resemble in their plant forms (gross
morphology). Characters like pollen shape, polar
diameter 'P', equatorial diameter 'E', 'P/E' ratio,
exine thickness and pore diameter are found considerably
important. Artemisia japonica and A. desertorum are
distinguished due to pollen grain size and the absence
of operculum on the pore of A. dubia is distinguished
due to pollen grain size and the absence of operculum on
the pore of A. desertorum. A dubia is distinguished from
its closely resembling species due to its double
columella layer in its exine. Therefore, palynological
studies in this genus are potentially significant in
species delimitation.
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March 2000
Vol. 50, Iss. 1
