New records of Artemisia quinqueloba and A. albicerata (Asteraceae) from China.pdf Artemisia L. is a big genus of the tribe Anthemideae Cass. (Asteraceae), and contain about 350-500 species (Ling et al., 2011; Jiao et al., 2019). The present taxonomy of Artemisia is complicated and far from clear. In the past ten years, we have conducted extensive field investigations in the world to understand its diversity and distribution (e.g. Jiao et al., 2019). Currently, seven species of the series Psammophilae Poljak. are recorded in Xinjiang, China. They are A. sphaerocephala Krasch., A. ordosica Krasch., A. halodendron Turcz. ex Besser, A. campestris L., A. saposhnikovii Krasch. ex Poljak., A. songarica Schrenk ex Fisch. et C.A. Mey., A. marschalliana Spreng. (Ling, 1991; An et al., 1999). The series Psammophilae is distinguished from the rest of the genus by the following characters: shrub or semi-shrub life form, long-petiolate lower cauline leaves, divided into 3-7 lobes or pinnate, lobes longer (Poljakov, 1961). In 2018, during the field investigations, two more Artemisia species new for the flora of Xinjiang, - A. quinqueloba Trautv. and A. albicerata Krasch. were discovered. Besides, herbarium materials from the collections of PE and MW were checked. Both species are the members of the series Psammophilae 50 (Poljakov, 1961; Ling, 1992) and usually regarded to be endemic to desert zone of Kazakhstan (Poljakov, 1961; Filatova, 1966). The aim of the present paper is to report our new discoveries of both species, which are firstly recorded in Xinjiang, western China. Artemisia quinqueloba Trautv., 1866, Bull. Soc. Imp. Naturalistes Moscou, 39(1): 348. Described from sands of Sarysu River, Kazakhstan (type in LE). Ecology: sands along rivers and lakes. General distribution: Kazakhstan (Aralo-Caspian Region, and Lake Balkhash Region), China (northern Xinjiang). New record: Xinjiang, China: Burqin County, sands along the Ertix River, N 47°41', E 86°51', alt. 446 m. 27 VIII 2018. J.Y. Zheng, XH185 (PE) (Figure 1). Figure 1. Habitat and morphology of Artemisia quinqueloba Trautv. from Xinjiang, China. Photo by J.Y. Zheng A - habitat; B - individual in flowering; C - leaves; D- synflorescence Artemisia albicerata Krasch., 1946, Bot. Mat. Gerb. Bot. Inst. Akad. Nauk SSSR, 9: 173. Described from Kazakhstan, Ili River valley (type in LE). Ecology: sands and sandy river beds. General distribution: Kazakhstan (Lake Balkhash Region), China (western Xinjiang). New record: Xinjiang, China: Baicheng County, river beds of Baicheng County, N 41°47', E 81°50', alt. 1196 m. 15 X 2018. J.Y. Zheng, XH264 (PE) (Figure 2). 51 Figure 2. Habitat and morphology of Artemisia albicerata Krasch. from Xinjiang, China. Photo by J.Y. Zheng. A - habitat; B - individual in flowering; C - leaves; D - synflorescence. Scale bar in C 1 cm In Xinjiang, four other species of the series Psammophilae are most similar to A. quinqueloba and A. albicerata: A. campestris, A. saposhnikovii, A. songarica, and A. marschalliana. A key to distinguish these six species are provided below. Key to species of the series Psammophilae from Xinjiang, China 1. Capitula erect..............................................................................................................2 + Capitula nodding........................................................................................................3 2. Stem, leaves, and involucre glabrous or nearly glabrous.......................A. campestris + Stem, leaves, and involucre pubescent............................................A. marschalliana 3. Capitula pedunculate..................................................................................................4 + Capitula sessile...........................................................................................................5 4. Stem, leaves, and involucre densely pubescent..................................A. quinqueloba + Stem, leaves, and involucre glabrous or nearly glabrous........................A. albicerata 5. Lower and middle part of stem branched, synflorescence arranged in a broad, muchbranched panicle....................................................................................A. songarica + Upper stem branched, synflorescence arranged in a narrow, spikelike panicle.......... .................................................................................A. saposhnikovii 52 ACKNOWLEDGEMENTS We are grateful to the curators of PE and MW for access to checking the specimens of Artemisia and taking of photos.

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