T ürkiye'de doğal olarak yetişen Iberis cinsi ülkemizde 8 türle temsil edilmekte olup tek ve/veya çok yıllık otlar veya yarı çalılardan oluşmaktadır. Bu çalışmada, Türkiye'de yetişen Iberis taksonları anatomik olarak detaylı biçimde ilk defa çalışılmış ve bu sayede cinsle ilgili taksonomik belirsizlikler ve karmaşıklıklar çözülmeye çalışılmıştır. Iberis türlerinin kök, gövde, yaprak anatomileri çalışılmış ve stoma indeksi ortaya konmuştur. Bu çalışmada elde edilen sonuçlar, cinsin türleriyle ilgili şüpheli durumların çözümü için değerli kanıtlar sağlamaktadır. I. attica kanatlı gövde yapısına ve dallanmış tüylere sahip tek türdür. Endemik bir tür olan I. carica, gövde anatomisindeki devamlı vasküler kambiyum sayesinde iletim demeti halkası içeren tek türdür. I. sempervirens tüysüz ve yarı çalı formundaki tek türdür. I. odorata tek yıllıktır. Bilateral ve izolateral olmak üzere iki tip yaprak anatomisi görülmektedir. Türkiye'deki Iberis türleri amfistomatiktir. Brassicales ordosunun tipik özelliklerinden biri olan mirozin hücreleri incelenen tüm türlerde gözlenmiştir. Anatomik sonuçlar, I. attica ve I. spruneri türlerinin, I. carnosa olarak tek bir takson değil, ayrı türler olarak ele alınmasını desteklemektedir.

Reseda balansae Müll. Arg. (Resedaceae) is a very restricted and endangered Turkish endemic species known only from Mersin province (South Turkey), in a hotspot of biodiversity. It was first collected in 1855, and subsequently described in 1857. Afterwards, it was only collected once again in 1896. In this study we report the rediscovery of these two populations of R. balansae in Turkey more than 120 years after its last known collection. We provide a detailed revised description of this poorly known species and comments about its taxonomy (including designation of a lectotype), distribution and ecology. We also perform the first conservation assessment of the species at a global scale under IUCN categories and criteria, resulting in the proposal of the critically endangered category for the species, which apparently persists in one single population, since the type population has recently been destroyed.

Seed micromorphology of 18 taxa belonging to the genus Reseda (Resedaceae) in Turkey were investigated with scanning electron microscopy (SEM), in order to understand and check its diagnostic significance at subgeneric and sectional level. Seeds of Reseda species were photographed to evaluate different characteristics including appearance of the seed, testa ornamentation and the existence of carunculoid tissue at hilum regions. In addition, cluster analysis and principal component analysis (PCA) were performed to test whether the micromorphological data of the related taxa is compatible with the current classification of the genus. According to seed micromorphology, Reseda taxa in Turkey are divided into four main groups particularly by testa ornamentation as papillose, rugose, rugulose, and smooth. These results are also in agreement with the sectional classification of the genus in morphological and molecular perspective. The tree topology of Unweighted Pair Group Method with Arithmetic Average based on seed features supported the traditional classification. Principle component analysis revealed testa surface ornamentation as the most distinctive character for species identification. PCA also confirms our cluster grouping of the subgeneric and sectional classification of the taxa in Turkey. An identification key for the genus Reseda in Turkey is provided in the light of current data. The seed data is helpful for the identification of the genus Reseda in Turkey at sectional level. However, for an accurate identification at specific level, seed micromorphology is not sufficient alone and must be evaluated together with all diagnostic morphological features.

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In this study a new species from Turkey, Minuartia alpuensis (Caryophyllaceae), is described and illustrated, and its taxonomic relationships are discussed. The distribution of the new species, its ecology and conservation status are given, and an identification key is provided. Pollen structures of both new and related taxa are examined.