In this paper, Allium sphaeronixum, a new species of the sect. Codonoprasum from Turkey, is described and illustrated. The new species is endemic to Central Anatolia, limited to the area of Nevşehir, where it grows on sandy or rocky soil at an elevation of 1000–1300 m a.s.l. Its morphology, phenology, karyology, leaf anatomy, seed testa micromorphology, chorology, and conservation status are examined in detail. The taxonomic relationships with the closest allied species, A. staticiforme and A. myrianthum, are also highlighted and discussed.

Allium purpureotunicatum Aytaç, Ekşi & Koçyiğit (Amaryllidaceae), a new species of sect. Scorodon, is described and illustrated from Kütahya Province, western Turkey. It is a narrowly distributed geophyte growing on calcareous marl slopes, resembling closely A. sibthorpianum and A. rumelicum. Allium purpureotunicatum differs from those species by its shorter tepals, longer filaments and pistil morphology. It also resembles A. stamineum by having pink flowers, stamens significantly longer than perigon, and a spherical ovary, but differs from it by having coriaceous, distinctly striped and purplish-pink inner tunics as well as fewer flowers. Following IUCN Red List Categories and Criteria, we assessed A. purpureotunicatum as Endangered (EN).

The family Lamiaceae is often uttered as the mint family, and the plant family of flowering plants. In Turkey, 609 species of 46 genera in the Lamiaceae family are naturally distributed, and almost half of these are endemics. The aim of this study is to examine the pollen characteristics of some species in the Lamiaceae family. The family is a source of pollen and nectar, which is important for honey bees, and the medicinal and aromatic use of inflorescence reveal the importance of identifying the species. In this study, pollen of 14 different species belonging to 12 genera in the Lamiaceae family were examined. The equatorial axis of the examined pollens is in the range of 50.6-22.4 μm and the polar axis of the examined pollens is in the range of 55.6-18.3 μm. It is stated that the pollen morphology of the Lamiaceae family can be used as an important character in the differentiation of taxa at the species level. It is also stated to be an important feature in the classification of the Lamiaceae family. As a result, these data obtained by light microscopy are fundamental data for taxonomic, morphological and melisopalynological studies.

Sedef hastalığı-psöriazis (psoriazis), keskin sınırlı, eritemli plak veya papüller üzerinde yerleşmiş parlak, sedefi-beyaz pullarla karakterize, kronik seyirli, bulaşıcı olmayan inflamatuvar bir hastalıktır. Pulların renginden dolayı halk arasında ‘Sedef Hastalığı’ olarak bilinmektedir. Bu çalışmada Türkiye’de halk arasında sedef hastalığında kullanılan bitkilerden üçünün (Juniperus oxycedrus L. (Cupressaceae), Aloe vera (L.) Burm.f. (Xanthorrhoeaceae) ve Smilax excelsa L. (Smilacaceae) yaprak anatomileri incelenmiştir. Sedef hastalığında Juniperus oxycedrus’un dallarından elde edilen Ardıç katranı denilen yağlı madde, Aloe vera bitkisinin yaprağının merkezinde parankima içinde depolanan jeli, Smilax excelsa bitkisinin ise kökleri kullanılmaktadır. Bu üç bitkiye ait yaprak enine kesitleri ve yüzeysel kesitlerinin fotoğrafları sunulmuştur. Stoma indeksleri ilk kez bu çalışmada hesaplanmıştır.