Galium shinasii Yildirim, 2016
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publication ID |
https://dx.doi.org/10.3897/phytokeys.75.10244 |
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persistent identifier |
https://treatment.plazi.org/id/7870225A-227B-5F69-A506-56616A6E7616 |
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treatment provided by |
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scientific name |
Galium shinasii Yildirim |
| status |
sp. nov. |
Galium shinasii Yildirim sp. nov. Figure 1 View Figure 1 , 2 View Figure 2 , 3 View Figure 3
Type.
Turkey: B7 Malatya: Akçadağ district, Levent Canyon , on marlstone rocky cliffs 1390 m, 26.06.2011, H. Yıldırım 2128 (holotype: EGE42431 View Materials !, isotypes: EGE42432 View Materials !, NGBB!, ANK!) .
Paratype.
Turkey: Malatya: Akçadağ district, Levent Canyon, on marlstone rocky cliffs 1390 m, 29.06.2015, H. Yıldırım 3358 (EGE!) (Figure 2A View Figure 2 ); loc., ibid., 11.09.2015, H. Yıldırım 3713(EGE!); Doğanşehir, Eskiköy, Meletbaşı mezrası karşısı kalker kayalıklar, 1630-1800 m., 12.07.2014, H. Yıldırım 3033 (EGE!) (Figure 2B View Figure 2 ). Erzincan: Sivas-Refahiye yolu, Refahiye’ye 1-2 km kala, kalker kaya üzeri, 1528 m, 09.09.2015, H. Yıldırım 3694 (EGE!) (Figure 2C View Figure 2 ).
Diagnosis.
Galium shinasii is related to Galium cornigerum , Galium lasiocarpum and Galium sorgereae but it differs from them in having very reduced flowers (not flowers relatively larger), 1.2-1.8 mm corolla diam (not 2-5 mm); yellowish-green to reddish-green and 0,5-1 mm long tepals (not white or pink and not at least 2 mm); dorsal and ventral surface of with densely transparent tubercles and lateral surface 0.2-0.4 mm spreading to patent hairy fruits (not tubercles absent and fruits wholly villous, hirsute or subtomentose).
Description.
Dwarf, caespitose perennial plant with many headed rootstock, suffruticose at base. Stem 1.5-6 cm long, fragile, prostrate-ascending to erect, many branched at base, glabrous to slightly puberulent, sometimes slightly winged on nerves, upper internodes elongate to 5 mm. Leaves in whorls of mostly 4, rarely 6, linear-lanceolate to narrow elliptic, 2-8 × 0.6-1.3 mm, 1 veined, glabrous to slightly puberulent, revolute at margin. Inflorescense dicashium, mostly terminal and also axillary, 8 to 75 flowered per stem; bracteoles absent. Pedicel glabrous, 1.5-2.5 mm in flowers, 2-5 mm in fruit. Calyx absent. Corolla 4 merious, yellowish-green to reddish-green, 1.2-1.8 mm diam; usually conical or campanulate, rarely infundibular; tube very reduced; lobes 0.5-1 × 0.4-0.7 mm, glabrous, triangular to lanceolate, mucronate at apex and apex incurved on petal inner surface. Stamen 0.4-0.6 mm long; anther yellow. Ovary 0.4-0.5 mm diam, dorsal and ventral surface of with densely transparent tubercles, lateral surface 0.2-0.4 mm spreading to patent hairy. Fruit depressed subglobose in fleshy, 0.5-0.75 mm, dorsal and ventral surface of with densely transparent tubercles, lateral surface 0.2-0.4 mm spreading to patent hairy.
Etymology.
This species is named in honour of retired Prof. Dr. Şinasi Yıldırımlı (Biology Dep. Hacettepe University, Turkey), who is an expert in Plant systematics and taxonomy. He described more than 100 new plant species for science in Turkey. The Turkish name of this species is given as "Levent İplikçiği”, according to the guidelines of Menemen et al. (2013).
Additional specimens examined.
- Galium cornigerum : - Turkey: Malatya: Levent Kanyonu inişi, kalker kayalıklar, 30.05.2012, H. Yıldırım 2386 (EGE!); Darende, Engüzek yaylası, Akbabacali Dagi zirve, 2100 m, 30.05.2012. H. Yıldırım 2396 (EGE!) (Figure 4D, E View Figure 4 ) .
- Galium incanum subsp. pseudocornigerum : - Turkey: Sivas: Gürün-Pınarbaşı arası, Pınarbaşı’na 68 km kala, yol kenarı kayalık alan, 1662 m, 29.06.2016, H. Yıldırım 3948 (EGE!) (Figure 4B, C View Figure 4 ) .
- Galium lasiocarpum : - Turkey: Elazığ: in Cappadocia, Aucher 694 (holotype G!) .
Galium sorgerae : - Turkey: Isparta: Dedegöl Da., 2200 m, 1 vii 1965, Sorger 65-42- 70 (isotype WU!) .
Distribution and ecology.
Galium shinasii is a endemic for Eastern Anatolia. It’s known that is from Levent Canyon (Figure 5 View Figure 5 ) in Akçadağ district, and Eskiköy in Doğanşehir district in Malatya province and near Refahiye district in Erzincan (Figure 5 View Figure 5 ). It is an element belonging to the Irano-Turanian floristic region and colonizes only marlstone-calcareous cliffs, usually those with an eastern and south-eastern orientation, at an elevation of 1200-1800 m. It is an obligate chasmophyte.
Suggested conservational status.
The new species found in 3 populations. Two populations have been discovered in Malatya province, the other has been discovered in Erzincan province. Although the distribution area of Galium shinasii seems relatively wide, the populations of the area are very restricted. The total population area of Galium shinasii was calculated as 0.2 km2 and approximately 500 individuals were observed in total. Probably it has still several undiscovered populations. No anthropogenic or grazing effects were observed on the population. According to the present data, following the criteria laid out by the IUCN (2012), the plant is categorized as ‘Vulnerable’ (VU) D1 + 2, on account of its restricted distribution.
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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