Bai, X.-L.1, Zhao D.-P.1, Tan B.C.2, Ignatova E.A.3, Ignatov M.S.4 2011. Mosses of Picea crassifolia forest in Helanshan (Ningxia, China) // Arctoa. Vol. 20: 81–86 [in English].

1 Dept. of Biology, Inner Mongolia University, Hohhot 010021, China; e-mails: &

2 Department of Biological Science, National University of Singapore, Science Drive 4, 119260 Singapore; e-mail:

3 Biological Faculty, Moscow State University, Moscow 119234 Russia; e-mail:

4 Tsitsin Main Botanical Garden of Russian Academy of Sciences, Botanicheskaya 4, Moscow 127276 Russia; e-mail:

KEYWORDS: spruce, forest, mosses, plant communities, China, xeric areas.

ABSTRACT. An unusual xerophytic composition of mosses in Qinghai spruce (Picea crassifolia) forest in Helanshan is discussed. Abietinella abietina, Hypnum vaucheri, Pseudostereodon procerrimus, Trachycystis ussuriensis and Timmia bavarica are dominants of the moss layer under dense canopy of spruce. This composition is somewhat similar to that in P. schrenkiana forest in Middle Asia.

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doi 10.15298/arctoa.20.05