-The aim of this paper is to investigate morphological, anatomical, palynological, fruit and seed micromorphological properties of Hedysarum pannosum (Boiss.) Boiss. A detailed description of the species is reported for the fi rst time in this study. The morphological features of the species have been compared with the results of previous investigations. Anatomical studies have been carried out on cross-sections of roots, stems, leafl ets and petioles. The anatomical results show that the plants have secondary growth roots, protruding stems, amphistomatic and equifacial leaves with tannin, triangular shaped petioles. Hedysarum pannosum pollen are tricolpate, prolate and pollen exine ornamentation is reticulate. Fruits have trichomes on their setae and tomentose trichomes have papillae. Seeds are reniform and they have rugolo-reticulate ornamentation.

Background: This paper investigates whether the fruit and seed micromorphology of eight Turkish Iberis (Brassicaceae) species can be used as a further aid in their taxonomic delimitation. Questions: Are the micro-morphological characters of the fruits and seeds of Iberis useful to support the taxonomic delimitation of its species? Studied species / data description /Mathematical model: The eight species of Iberis present in Turkey were examined. The fruit and seed characteristics were obtained and statistical analysis was performed using UPGMA. Study site and dates: Fifteen localities in Turkey, from 2015 to 2019. Methods: Samples of fruit and seed of eight species of Iberis were collected, stored, and later measured and described with aid of light and scanning electron microscopies. Results: All eight species had different fruit and seed characters; particularly differing from each other with respect to fruit and seed size, seed shape and seed ornamentation. Two fruit ornamentation types were evident, smooth and striated. The seed coat surface were separated into three types: reticulate, reticulate-rugose and reticulate-papillate, being reticulate the most common. Further differences were noted for the seed surface epidermal structures, notably species had rectangular, tetragonal, or pentagonal patterning. An identification key was constructed based on a similarity analysis. Conclusions: Fruit morphology, seed dimensions, colour, and epidermal cell patterning are useful microcharacters that enabled species-level determinations in the Iberis species sampled.

The present study was designed to analyse the anatomy of the vegetative and reproductive parts of Turkish Iberis species from a systematic point of view. Samples of leaves, stems, roots, fruits, and seeds of each species were collected, fixed, and processed according to the paraffin method for light microscopy. The numerical analysis derived from 11 anatomical characteristics showed that the number and dimensions of vessels in the root, presence of aerenchyma in the leaf, number and dimensions of palisade parenchyma, and mesophyll type were useful for grouping the Iberis taxa. The testa was composed of four layers: the epidermis, subepidermis, compact tissue, and parenchyma. The testa thickness was a significant character to distinguish the investigated Iberis species. In this study, the traditional classification of Turkish Iberis species was mostly congruent with the dendrogram generated vegetative anatomical properties. Bangladesh J. Plant Taxon. 27(2): 213-224, 2020 (December)

Highlights • The anatomy of Bornmuellera genus are determined for the first time. • Two types of leaf shape are defined: (1) linear, (2) triangular. • Fruit and seed shape and colors are the most discriminative characteristics. • In the species analyzed the pollen grains is similar.

The present study reports for the first time detailed palynological traits of the Turkish species Iberis. Both light microscope (LM) and scanning electron microscope (SEM) were used for the characterisation of the species. Radially symmetrical, isopolar, and tricolpate pollen grains were observed as common characters in all of the examined taxa. The pollen grains were prolate-spheroidal with polar axes ranging from 21.97 to 29.25 µm and equatorial axes ranging from 20.34 to 26.09 µm. Their polar shapes were subcircular to subtriangular. Two types of exine ornamentation were observed using a SEM. A numerical UPGMA analysis showed that the dimensions of polar axes, equatorial axes and outline in polar view (amb) were the most valuable variables for separating the Iberis species.