[Botany • 2019] Allium ulleungense (Amaryllidaceae) • A New Species endemic to Ulleungdo Island, Korea

Allium ulleungense  H. J. Choi & N. Friesen,

in Choi, S. Yang, J.-C. Yang et Friesen, 2019.  

DOI: 10.11110/kjpt.2019.49.4.294

Abstract
Allium ulleungense (subg. Anguinum, Amaryllidaceae), from Ulleungdo Island, Korea, is described as a new species. It is clearly distinguished from its close relatives, A. microdictyon and A. ochotense, by its broader leaves and larger whitish perianth and by its diploid chromosome number, which is 2n = 2x = 16. The lengths of the chromosomes range from 11.3 to 15.75 μm. Molecular phylogenetic analyses using nuclear and chloroplast markers also clearly indicate that A. ulleungense is genetically distinct from other species of the subg. Anguinum.

Keywords: Amaryllidaceae, Anguinum, Allium ulleungense, Ulleungdo Island, Korea

Allium ulleungense. A. Habit. B. Tunic. C. Scape. D. Shape of scape in cross section. E. Inflorescence. F. Flower. G. Tepal and filament arrangement. H. Pistil. I. Capsule. J. Seed.

Illustrations by Hyeryun Jo.

Allium ulleungense. A. Habit (from the holotype). B. Inflorescence. C. Underground structure and bulb tunic (r, rhizome). D. Tepal and filament arrangement.  

Allium ulleungense H. J. Choi & N. Friesen, sp. nov.

Etymology: The specific epithet, “ulleungense,” is based on the name of the location, Ulleungdo Island, where Allium ulleungense was discovered.

Comparative photographs of inflorescences, flowers, tepal and filament arrangement, and leaf blades of Allium ulleungense (A–D), A. microdictyon (E–H), and A. ochotense (I–L).

 
Hyeok-Jae CHOI, Sungyu YANG, Jong-Cheol YANG and Nikolai FRIESEN. 2019. Allium ulleungense (Amaryllidaceae), A New Species endemic to Ulleungdo Island, Korea. Korean Journal of Plant Taxonomists. 49(4); 294-299. DOI: 10.11110/kjpt.2019.49.4.294