Taxonomic novelties

Botanica Pacifica. A journal of plant science and conservation Preprint
Article first published online: 20 NOV 2016 | DOI: 10.17581/bp.2016.05204

Sillaphyton, a new genus of the Umbelliferae, endemic to the Korean Peninsula

Michael G. Pimenov 1, Tatiana A. Ostroumova 1, Galina V. Degtjareva 1, Tahir H. Samigullin 2

1 Botanical Garden, Lomonosov Moscow State University, Vorobjevy Gory, Moscow 119234, Russia
2 Department of Evolutionary Biochemistry, Belozersky Institute of Physicochemical Biology, Lomonosov Moscow State University, Moscow 119991, Russia

Sillaphyton, a monotypic Korean genus, is described here for the first time. The new genus, based on the rare species Peucedanum podagraria H.Boissieu (= P. insolens Kitag.), is clearly distinct from Peucedanum s.str. (P. officinale L. and its closest relatives) as well as from Peucedanum s.l. segregate genera in fruit and leaf characters, as well as in nrDNA ITS sequence data. The carpological differences relate to the pericarp structure and secretory system. On the other hand, according to molecular data Sillaphyton appeared to be closer to Arcuatopterus Sheh Menglan & Shan Renhwa than to Peucedanum and any its segregates. Arcuatopterus, described as the Chinese endemics, belonging to Peucedaneae, now numbers six species of Chino-Himalayan distribution. The latter differs from Sillaphyton in a set of morphological and carpoanatomical characters.

Пименов М.Г., Остроумова Т.А., Дегтярева Г.В., Самигуллин Т.Х. Sillaphyton – новый род зонтичных, эндем Корейского полуострова. Описан новый монотипный корейский род Sillaphyton, основанный на редком виде Peucedanum podagraria H. Boissieu (= P. insolens Kitag.). Новый род хорошо отличается от Peucedanum s.str. (P. officinale L. и ближайшие к нему виды) и от сегрегатных родов, выделенных из Peucedanum s.l., по строению плодов (структура перикарпа и особенности секреторной системы) и листьев, а также по последовательностям ITS ядерной рибосомной ДНК. С другой стороны, по молекулярным данным Sillaphyton ближе к Arcuatopterus Sheh Menglan & Shan Renhwa, чем к Peucedanum и любым его сегрегатам. Arcuatopterus, описанный как китайский эндемичный род, принадлежащий к Peucedaneae, ныне насчитывает 6 видов, распространенных в Сино-Гималайской флористической области. Arcuatopterus отличается от Sillaphyton рядом морфологических и карпоанатомических признаков.

Keywords: Apiaceae, Eastern Asia, fruit anatomy, nrDNA ITS, Korea, morphology, taxonomy, Peucedanum, Arcuatopterus, Восточная Азия, анатомия плодов, Корея, морфология, таксономия

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