Senecio x helwingii (Asteraceae), A New Hybrid Record for the Flora of Türkiye

Year 2024, , 1 - 6, 17.06.2024

Ergin Hamzaoğlu

https://doi.org/10.53803/turvehab.1391817

Abstract

Senecio x helwingii, collected from Kahramanmaraş Sütçü İmam University Karacasu Campus and Bolu Abant İzzet Baysal University Campus are a new hybrid record for the flora of Turkey. No literature showing the existence of the hybrid in Türkiye and that was based on a specimens collected was encountered. The ligulate flowers of Senecio vernalis are 5–10 mm long. S. vulgaris has a discoid capitulum and does not have ligulate flowers. S. x helwingii is similar to the parent species S. vernalis and S. vulgaris in many characters. However, it differs from both species because its ligulate flowers are 1–3 mm long. In addition, the achenes of the hybrid are sterile. Here, the description based on the examined specimens, the general and Türkiye distribution, taxonomy, and some ecological preferences of this hybrid were given.

Keywords

Compositae, hybrid, new record, Senecio, taxonomy, Türkiye

Project Number

TÜBİTAK TBAG - 106T240

Senecio x helwingii (Asteraceae), Türkiye Florası İçin Yeni Bir Melez Kaydı

Abstract

Kahramanmaraş Sütçü İmam Üniversitesi Karacasu Kampüsü ve Bolu Abant İzzet Baysal Üniversitesi Kampüsünden toplanan Senecio x helwingii, Türkiye florası için yeni bir melez kaydıdır. Melezin Türkiye’de var olduğunu gösteren, toplanmış örneğe dayanan herhangi bir yayına rastlanmamıştır. Senecio vernalis dilsi çiçekleri 5–10 mm boyundadır. S. vulgaris ise diskoit kapituluma sahiptir ve dilsi çiçekleri yoktur. S. x helwingii ata türler olan S. vernalis ve S. vulgaris ile birçok karakter bakımından benzerdir. Ancak dilsi çiçeklerinin 1–3 mm boyunda olması nedeniyle her iki türden de ayrılır. Ayrıca melezin akenleri kısırdır. Burada melezin incelenen örneklere dayalı betimlemesi, genel ve Türkiye dağılışı, taksonomisi ve bazı ekolojik tercihleri verilmiştir.

Keywords

Compositae, hibrit, taksonomi, Türkiye, Senecio, yeni kayıt

Supporting Institution

TÜBİTAK

Project Number

TÜBİTAK TBAG - 106T240

Thanks

“Türkiye Senecio L. (Asteraceae) Türlerinin Taksonomisi” adlı proje (TBAG 106T240) kapsamında maddi destek sağlayan TÜBİTAK’a ve Senecio x helwingii örneklerinin toplanmasına katkı sağlayan Prof. Dr. Ahmet İlçim, Prof. Dr. Ahmet Aksoy ve Prof. Dr. Ümit Budak’a teşekkür ederim.

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