Publicação on-line; 47 ref.; 7 tables; 2 illus.; Summary (En)

ABSTRACT
Background: Palyno-morphological and foliar epidermal studies plays a
very important role in the correct identification and differentiation of two
weeds of genus convolvulus.
Objective: The aim of the study is to determine the medicinal uses of the
two important weeds for correct systematic identification.
Methods: Both the qualitative and quantitative features were measured
with the help of Light microscopy (LM) and scanning electron microscope
(SEM).
Results: Variations were observed in both the weeds, i.e Convolvulus
arvensis (bindweeds) and Convolvulus prostatus (soft bindweed) in
epidermal cells, stomatal size and number, guard cell shape and size,
subsidiary cell and diversity of trichomes. Paracytic type of stomata was
found in both the weed species. Stomata shape in Convolvulus arvensis
is elliptical and oval to oval oblong in Convolvulus prostratus. Weed
species have a difference in size, shape, polarity and exine
ornamentation. Tricolporate pollen type was observed. The shape of
pollen grains is Prolate, Perforate. By using these Palyno-morphological
characteristics a taxonomic key is prepared for the identification of these
weed plants.
Conclusions: High fertility rate i.e Convolvulus arvensis 96% and in
Convolvulus prostatus is 90 % shows the weed species are well adapted
in the area. Systematics studies of the weed play a very important role
not only incorrect identification but also differentiation with other weed
plants and subsequently for the conservation purposes.

Keywords:
palyno-morphological
foliar epidermal
Convolvulaceae
weed species
fertility rate
taxonomic key.