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    CERASTIUM MAHMUTKILINCII (CARYOPHYLLACEAE), A NEW SPECIES FROM TÜRKIYE
    (Magnolia Press, 2024) Keskin, Mustafa; Karaer, Fergan; Celep, Ferhat
    Cerastium (Caryophyllaceae) is a taxonomically difficult genus of over than 100 species. The flora of T & uuml;rkiye include 30 species of Cerastium, of which 9 are endemics. A further species (Cerastium mahmutkilincii sp. nov.), belonging to sect. Cerastium subsect. Grandiflora, was proposed here based on a morphological investigation of herbarium specimens. The new species is only known from the Erbaa-Tokat region (North Anatolia) and it is similar to C. szowitsii and C. araraticum, but differs from both by the hairy filaments and sparsely glandular (eglandular hairy in both C. szowitsii and C. araraticum) and multicellular hairy stem indumentum (usually simple hairy in C. szowitsii and C. araraticum). It also differs from C. araraticum by a hairy claw at the base (glabrous in C. araraticum). Data about the ecology and phenology, as well as a identification key of the Turkish members of subsect. Grandiflora are also given; lacking sufficient data, the IUCN conservation status was assessed as DD (Data Deficient). As a result, with the new species in this article, the number of Cerastium species in T & uuml;rkiye has increased to 31 and the number of endemic taxa to 10.
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    Conservation Assessment of a critically endangered endemic Polygonum samsunicum (Polygonaceae) with emended description from Turkey
    (Sciendo, 2022) Karaer, Fergan; Celep, Ferhat; Celep, Aysegul; Kutbay, H. Guray
    Polygonum samsunicum is one of the endemic species from Turkey. Up to now, it has been only known from the type locality (Samsun /Ladik). This research intends to define the global conservation status and strategies of locally distributed endemic P. samsunicum which has been confronted with the danger of extinction due to anthropogenic effects in recent years. In this research, we did extensive field studies and collected all needed data for determining the precise conservation status of P. samsunicum. We reported nine additional populations from Upper Tersakan valley, where the Mediterranean climate is dominant, and the size of populations, altitude, coordinates, habitat types, and the threats it faces in each locality were given. GeoCAT analyses at global levels indicate the grade of occurrence 21.609 km(2) and area of occupancy 10.094 km(2) and there could be an inferred decline due to habitat loss and fragmentation of the original population, suggesting local endemic species might be classified as CR, based on criteria B1ab (i, ii, iii) + 2ab (i, ii, iii) in the Red List categorization. Its parts are also consumed by local people due to its medicinal features. For in-situ conservation, phenological life history and detailed ecological studies, as well as population monitoring and ex-situ conservation studies should be continued together. Establishing cooperation between universities, research institutes, and local management authorities is strongly needed for long-term monitoring of population size, distribution, overgrazing, and public awareness.
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    Lamium cappadocicum, a new species from Central Anatolia, Turkey: evidence from molecular and morphological studies
    (Tubitak Scientific & Technological Research Council Turkey, 2022) Celep, Ferhat; Karaer, Fergan; Drew, Bryan T.
    Lamium is a taxonomically convoluted genus of about 34 species. Within Lamium, the L. garganicum species complex is particularly challenging. Here, based on morphological and molecular studies, Lamium cappadocicum Celep & Karaer sp. nova (Lamiaceae) is separated from L. garganicum and L. bilgilii and described as a new species, and L. garganicum subsp. rectum (= L. garganicum subsp. pulchrum) is resurrected. The new species is only known from the Hasan Mountain (Aksaray) in Central Anatolia, Turkey. Lamium cappadocicum is closely related to L. garganicum subsp. rectum but differs from it by its mat-forming caespitose habit, reniform (rarely ovate in upper part) and deeply cordate leaves with dense white villous hairs, deeply crenate and undulate leaf margins, subglabrous to sparsely pilose stems, and densely white villous calyces. Lamium cappadocicum also differs from L. bilgilii by its mat -forming caespitose habit, smaller corollas (25-33 mm versus 40-52 mm in L. bilgilii), subglabrous to sparsely pilose stems and smaller leaves (3-20 (-30) mm long x 3-20 (-30) mm wide, versus 5-45 mm long x 5-45 mm wide in L. bilgilii). Molecular phylogenetic analyses from nuclear ribosomal (nrITS) and chloroplast (matK, rpoA and psbA-trnH) gene regions support the morphological results. The IUCN conservation status, ecology, phenology, etymology, and notes on biogeography of the new species are also given and diagnostic features are discussed.
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    Resurrection of Lamium ponticum (Lamiaceae) with a new subspecies, Lamium ponticum subsp. an atolicum, from Turkey
    (Magnolia Press, 2021) Celep, Ferhat; Karaer, Fergan; Duman, Hayri
    Lamium ponticum, known from central and eastern Black Sea region of Turkey, is an endemic species with white flowers. However, it was evaluated as a synonym of L. moschatum subsp. micranthum in the last taxonomic revision the genus. During our revisional studies on the genus, we concluded that L. ponticum is completely different from L. moschatum subsp. micranthum. In addition, we collected some specimens from western Black Sea region of Turkey with pink-rose colored flowers, pinkish-purplish inflorescence and calyx, and greenish-pinkish bracts with pinkish-white spots at base, that looks quite different from the typical L. ponticum. Therefore, in this paper, we resurrected L. ponticum and described a new subspecies from western Black Sea region of Turkey. IUCN red list category, notes on biogeography and ecology of the new subspecies are also given.