Barbarea bracteosa Guss. (Brassicaceae) recently collected from İstanbul, is reported as a new record for the Flora of Turkey. It was identified using the collected specimens and Flora Europaea. The description and illustrations of the species are given and a key is presented below to the fourteen species found in Turkey.Keywords: Barbarea, bracteosa, Brassicaceae, new record, flora, Turkey Türkiye florası için yeni bir kayıt: Barbarae bracteosa Guss.Özet: İstanbul'dan yeni toplanan Barbarea bracteosa Guss. (Brassicaceae) örnekleri, teşhis edildikten sonra Türkiye Florası için yeni kayıt olarak rapor edilmiştir. Türkiye Florasında olmayan bu tür, Avrupa Florasına dayanılarak teşhis edilmiştir. Makale kapsamında türün tanımı, görselleri ve Türkiye Florasında bu örneklerle birlikte 14 olan Barbarea türlerinin tanı anahtarı verilmiştir.

The purpose of the study is to find the effects of different growing site conditions on trees with the vessel features in the woods of Quercus ilex L. growing in different regions through Turkey under different site conditions, and to evaluate the results in respect of forestry. A total of 102 wood samples were collected from 102 sampling plots (as 20 m x 10 m plots) in 9 distribution areas in Turkey. Environmental, climate and stand data were obtained for each plot. Standard wood anatomical studies were performed. The results show that, while vessel element lengths are almost stable in all regions, the most changeable vessel element feature is the vessel frequency in different regions of Quercus Q. ilex. Hierarchical cluster analysis based on the mesomorphy and xeromorphy ratios revealed that a total of 15 sites fell into Group 1 (14.71%-very humid), 39 sites (38.24%-humid) into Group 2 and 48 sites (47.06%-dry) into Group 3. The ratios of dry sites are 29.63% in Black sea region, 45.71% in Marmara region and 60% in Aegean region; Black Sea Region promote more mesomorphic wood formation, those in the Aegean region force xeromorphic wood formation in general. The stands of Quercus Q. ilex mixed with Pinus brutia are drier and produce negative correlation with temperature and positive correlations with precipitation. Increasing tree cover, tree height and stem diameter promote wider vessel element diameters and lower number of vessels per square mm. In the individuals of Quercus Q. ilex growing on the mountain ridges of Muğla, Davutlar National Park and its around and on the shallow soils are the driest conditions, and safety is more prominent than efficiency in water transport. In the lower elevations and on the deep soils, efficiency in water transport becomes more prominent than safety. Due to its mesomorphic vessel features in lowland humid sites, Quercus Q. ilex may be planted in lowlands and humid sites through Turkey.

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Proboscidea louisianica (Miller) Thell. (Martyniaceae) is reported as a new alien species for the flora of Turkey. A plant species with different and interesting fruits was photographed in 2016. During a field investigation, a population of P. louisianica consisting of ca. 25 individuals was found at roadside between Biga and Karabiga town, district of Çanakkale, and plant specimens with flowers were collected in 2017. After detailed literature studies, this species was identified as Proboscidea louisianica. The family Martyniaceae is represented by just 1 genus with 1 taxa (Ibicella lutea (Lindl.) Van Eselt.) in Turkey and no member of the genus Proboscidea has been recorded before. In this paper, the species was introduced with taxonomical and morphological features. Its ecological impact was also evaluated with potential risks.

Asteraceae is the largest plant family in Turkey and represented by 138 genera and 1336 species in Turkey. In this paper, Gamochaeta coarctata (Willd.) Kerguélen (Asteraceae) which is native in South America, is reported for the first time as a new alien species for Turkey (İstanbul). The plant was noticed, in a population of more than 250 individuals on the side of walking path in May 2021. In order to identify this unfamiliar plant, a sample was taken from the plant and its photographs were taken. When researched, it was seen that the plant is not included in the Flora of Turkey and with the literature review, the plant was identified as Gamochaeta coarctata which a new alien species for Turkey. In order to determine the area distribution of the plant, it was wandered around the land and it was observed that the plant became established on the edges of the walking paths on different routes, on the forest edge and in the meadow by the dam lake. In this paper, the species was introduced with taxonomical and morphological features. Its ecological impact was evaluated with potential risks also. The species can be considered in Turkey as an alien species and have a rapid expansion potential, but further field investigations on this species are necessary to avoid its diffusion. ÖZ Asteraceae (Compositae), Türkiye'de en geniş bitki familyası olup 138 cins ve 1336 türle temsil edilir. Bu çalışmada Gamochaeta coarctata (Willd.) Kerguélen (Asteraceae) Türkiye Florası için yeni bir yabancı tür olarak kaydedilmiştir. İstanbul-Kemerburgaz Kent Ormanı'nda 2021 yılı mayıs ayında yürüyüş yolu kenarında 250 den fazla bitkiden oluşan bir populasyon halinde görülmüştür. Bu bilinmeyen bitkinin tespiti için bitkiden numune alınarak fotoğrafları çekilmiştir Araştırıldığında, bitkinin Türkiye Florasında yer almadığı görülmüş ve yapılan literatür taraması ile bitki Gamochaeta coarctata olarak teşhis edilerek Türkiye için yeni bir yabancı tür olarak teşhis edilmiştir. Bitkinin alanda dağılımını belirlemek için arazide dolaşılmış ve farklı güzergahlardaki yürüyüş yollarının kenarlarında, orman kenarında ve baraj gölü kenarındaki çayırda bitkinin yerleştiği gözlemlenmiştir. Türün bölgeye nasıl ve ne zaman geldiği bilinmemektedir. Hızlı yayılma kabiliyetinde olan bu yabancı türün bulunduğu bölgede istilacı olma potansiyelinin yüksek olduğu düşünülmektedir.