Saturday, November 11, 2017

[Botany • 2017] Semiaquilegia quelpaertensis • A New Species (Ranunculaceae) from the Republic of Korea


Semiaquilegia quelpaertensis D.C. Son & K. Lee

Son, Jeong, Lee, Kim & Chang, 2017  

Abstract
Semiaquilegia quelpaertensis sp. nov.a new species belonging to the family Ranunculaceae, from Hallasan National Park in Jeju-do, Republic of Korea, is described and illustrated. The new species is similar to Semiaquilegia adoxoides (DC.) Makino, but can be readily distinguished by a thick underground stem, shallowly lobed leaflets, larger flowers, (4–)6 staminodes and conspicuously rugose tuberculate seed surface.

Keywords: Ranunculaceae, Isopyroideae, Hallasan National Park, Eudicots


Figure 1. Semiaquilegia quelpaertensis D.C. Son & K. Lee, illustrations.
A Habit B Flower (lateral view) B’ Flower (top view) C Flower with sepals cut away to show petals D Sepals E Flower with some sepals and petals removed, showing stamens and styles F Petals G Flower with sepals, petals and some stamens removed, showing stamens, staminodes and pistils H Stamens I Staminodes J Pistils (after fertilisation) K Inflorescence in fruiting L Follicles (immature) L’ Dehisced follicles, showing seed M Seed N Inflorescence O Petiole P Leaflet (abaxial surface).
 Illustrations by Heesoo Kim.

 Semiaquilegia quelpaertensis D.C. Son & K. Lee; Flowering plant

 Photographs by Kang-Hyup Lee.

Semiaquilegia quelpaertensis D.C. Son & K. Lee, sp. nov.

Diagnosis:  Semiaquilegia quelpaertensis is most similar to S. adoxoides in general vegetative and floral morphology, but obviously differs from the latter by the shallowly lobed leaflets, larger flowers, (4–)6 staminodes and conspicuously rugose tuberculate seed surface.

Figure 2. Semiaquilegia quelpaertensis D.C. Son & K. Lee.
 A Flowering plant B Fruiting plant C Seeds.
Photographs by Kang-Hyup Lee.

Distribution: Endemic to the Province Jeju-do (Republic of Korea).

Vernacular (Korean) name: Keun-gae-gu-ri-bal-top (큰개구리발톱; new Korean name).

Habitat and ecology: Semiaquilegia quelpaertensis grows in submontane broadleaf forests and in moist valleys at 800–850 m elevation. Its habitat is dominated by Styrax obassis Siebold & Zucc. (Styracaceae), with Dryopteris dickinsii (Franch. & Sav.) C. Chr. (Dryopteridaceae), Elatostema umbellatum (Siebold & Zucc.) Blume (Urticaceae), Pimpinella hallaisanensis (W. Lee & G. Jang) G. Jang, W.K. Paik & W. Lee (Apiaceae), Cardamine tanakae Franch. & Sav. (Brassicaceae), Peracarpa carnosa var. circaeoides (F. Schmidt ex Miq.) Makino (Campanulaceae), Viola boissieuana Makino (Violaceae) and Anemone stolonifera Maxim. (Ranunculaceae).

Etymology: The specific epithet of the new species is derived from the type locality, Jeju-do, Republic of Korea.


 Dong Chan Son, Keum Seon Jeong, Kang-Hyup Lee, Heesoo Kim and Kae Sun Chang. 2017. Semiaquilegia quelpaertensis (Ranunculaceae), A New Species from the Republic of Korea. PhytoKeys. 89; 107-113.  DOI:  10.3897/phytokeys.89.21004


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