Sibbaldianthe subg. Sibbaldianthe

Mosyakin, Sergei L. & Shiyan, Natalia M., 2017, The genus Sibbaldianthe (Rosaceae): a nomenclatural overview and new combinations, Phytotaxa 296 (2), pp. 101-117 : 103-104

Sibbaldianthe subg. Sibbaldianthe

Type: Sibbaldianthe adpressa (Bunge) Juz. (type of the genus: Juzepczuk 1941: 229, 615).

1. Sibbaldianthe adpressa (Bunge) Juzepczuk (1941: 230, 615) ≡ Sibbaldia adpressa Bunge (1829: 428) ≡ Potentilla adpressa (Bunge) Cardot (1916: 408) .

Type:— RUSSIA [Altai Republic; in Russian— Республика Алтай]. According to the protologue: “in apricis montium et in campis siccis editis ad fl. Kan et Tschuja ( B.). Fl. Majo mense”. Original specimens in LE (see Juzepczuk 1941: 233) ; lectotype not designated.

Heterotypic synonyms:

Potentilla lindenbergii Lehmann (1851b: 339 ; 1851c: 9).

Type (lectotype, designated by Soják 1996, as a “ holotype ”):— INDIA [?] “Ex India orientali, accepit Lindenberg” (label written by Lehmann, PR, sine num.: see Soják 1996: 111). According to the protologue: “Specimina completa, ex India Orientali allata, sine nomine accepi a Cl. J. B. W. Lindenberg; manca ex herbario Jacquemontiana, No. 1591 designata, benevole mecum communicavit celeberr. A. de Jussieu.”

Potentilla bifurca L. var. pusilla Th. Wolf (1908: 64) .

Type:—[syntypes from CHINA] According to the protologue: “Eine in allen Teilen verarmte und stark reduzierte Zwergform, welche besonders die kalten Hochplateaus Tibets zwischen 3000 und 4000 m Höhe zu bewohnen scheint, wo sie Ladygin 1900 und 1901 mehrfach gesammelt hat“ [translation: „ A dwarf form, impoverished and greatly reduced in all parts, which seems to occupy the cold high plateaus of Tibet at altitudes between 3000 and 4000 m, where it was several times collected by Ladygin in 1900 and 1901”]. Herbarium specimens collected by Veniamin F. Ladygin during the Tibet expedition (1899–1901) led by P. K. Kozlov (see Andreev & Yusupova 2015) are mainly in LE ; lectotype not designated.

Potentilla bifurca L. var. unijuga Th. Wolf (1908: 65) .

Type:—[syntypes from MONGOLIA and CHINA]. According to the protologue: “Bis jetzt sah ich diese seltene Varietät in der Petersburger Herbarien nur einmal aus der nördlichen Mongolei (leg. Potanin), einmal von Zaidam in der mittl. Mongolei (leg. Przewalsky) und einmal aus Tangut im nordöstlichen Tibet (leg. Przewalsky)” [translation: “So far I have seen this rare variety in the Petersburg Herbarium only once from northern Mongolia (coll. Potanin), once from Zaidam in central Mongolia (coll. Przewalsky), and once from Tangutia in north-eastern Tibet (coll. Przewalsky)”]. Original specimens in LE ; lectotype not designated.

Sibbaldia minutissima Kitamura (1954: 132) .

Type (holotype, KYO):— NEPAL. Sangda, 3800 m. S. Nakao s.n., 12 May 1953 (see Ikeda et al. 2004).

Original specimens of Sibbaldia adpressa should be present in LE but we were unable to locate them yet. The plants were collected by Bunge in at least two localities. There are three Kan rivers in Siberia ; the one mentioned in the protologue of S. appressa is a tributary of the Charysh River (in Russian—Чарыш). The Chuya River (Tschuja; in Russian—ЧуЯ) of the protologue is a tributary of the Katun’ (in Russian—Катунь) ; there are two more rivers with the same name in Siberia. Relevant information has been provided to colleagues from the LE herbarium ; they will check the available specimens and select a lectotype later.

The combination Potentilla adpressa (Bunge) Cardot (1916: 408) is legitimate because P. adpressa Opiz (1852: 79) is nomen nudum; Opiz provided no description and no reference, either direct or indirect, to any earlier valid name (see also Soják 2012).

Soják (1996: 111) cited the specimen of Potentilla lindenbergii Lehm. from the Lehmann herbarium in PR (see above) as the “ holotype ”. However, Lehmann mentioned in the protologue at least two original specimens, a “complete” one provided by J. B. W. Lindenberg and a “poor” or “incomplete” one from the Jacquemont herbarium provided by A. de Jussieu. Because of that the specimen erroneously listed by Soják as the “ holotype ” should be accepted as the lectotype (the error correctable under Art. 9.9 of ICN: McNeill et al. 2012).

The chromosome number 2n=28 was reported for this species (as Sibbaldia adpressa ) by Měsíček & Soják (1969).

Sibbaldianthe adpressa is currently known from Mongolia, China (Gansu, Hebei, Heilongjiang, Nei Mongol, Qinghai, Xinjiang, and Xizang), northern Nepal, eastern Kazakhstan, and Russia (mainly southeastern Siberia) (Juzepczuk 1941; Grubov 1982; Gubanov 1996; Abdulina 1998; Li et al. 2003; Ovchinnikova 2005; Ikeda 2012; Urgamal et al. 2014 etc.).