The collection sites on Ulleung Island, South Korea. (A) Okcheon Stream, Ulleung-eup, Ulleung-gun, Gyeongsangbuk-do (C. vulgaris KNUA104 and C. sorokiniana KNUA122; 37°28ʹ24.0ʹʹN, 130°53ʹ06.8ʹʹE) (B) Namseo Stream, Seo-myeon, Ulleung-gun, Gyeongsangbuk-do (C. sorokiniana KNUA114; 37°28ʹ01.5ʹʹN, 130°50ʹ12.4ʹʹE). (C) Light microscope images of C. vulgaris KNUA104, (D) C. sorokiniana KNUA114, and (E) C. sorokiniana KNUA122 (Scale bar = 5 μm). (F) A 250-mL flask containing C. vulgaris KNUA104, (G) C. sorokiniana KNUA114, and (H) C. sorokiniana KNUA122.