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New species of oak, Quercus wutaishanica, in the Russian Far East
Insular flora of Northern Okhotia - a book from Maria KHOREVA
from Eugene A. Beljaev
Institute of Biology & Soil Science, Vladivostok, Russia
Contacts:
beljaev@ibss.dvo.ru
A native oak species new to the flora of Russia, Quercus wutaishanica Mayr, 1906 (=Q. liaotungensis Koidz., 1912), is reported from south of Russian Far East. The species is found in 3 localities in the western of Primorsky Territory, near Nikolo-L'vovsk, Monakino and Pokrovka villages (fig. 1), over one hundred trees in different ages. All discovered localities of Q. wutaishanica strictly associated with most insolated concave sites with southern orientation, mainly in upper half of steep stony slopes in community with Armeniaca sibirica (L.) Lam., Ulmus macrocarpa Hance, Securinega suffruticosa (Pall.) Rehd. and other thermo- and xerophilous plants (fig. 3). It is significant that physiognomy of the habitats of Q. wutaishanica in Primorsky Territory is completely resembles habitats of Q. mongolica in his north-east limit of aria on Argun river (Chita Province) (Korsun, 2003). Probably Q. wutaishanica has in Primorsky Territory local and very narrow distribution since it had not been found in neighbor similar habitats but placed somewhat higher up the right tributaries of Razdolnaya (Suifun) river (fig.1, B).
In the localities Q. wutaishanica (fig. 2) well differs from Quercus mongolica Fisch. ex Ledeb. by characters as follows:
- common length of leaf blade 6-8 cm (against common 15-25 cm in Q. mongolica);
- leaf blade with 6-9 pairs of lateral veins and lobes (against common 8-12 ones in Q. mongolica);
- cupule of acorn with slightly concave or flat scales, as result it looks almost smooth (against strongly rough cupule in Q. mongolica);
- acorn 0.7-1.3 cm in diameter (against 1.3-2.0 cm in Q. mongolica);
- foliation and autumnal coloration of Q. wutaishanica occurs at several days later.
Distinct morphological and phonological difference Q. wutaishanica from Q. mongolica in Primosky Territory to prevent from support of recently proposed synonymization of Q. wutaishanica with Q. mongolica (Yun et al., 1998; Huang, Zhang, Bartholo, 1999).
Also leaf variability and sprouts of Q. wutaishanica and Q. mongolica are discussed and illustrated.
Fig. 1. Distribution of Q. wutaishanica. A - general distribution of Q. wutaishanica (dash line -area of the species following Menitsky (1984) and Ying, Boufford (1998); black circle - new location in Russia, Primorsk territory). B - localities of Q. wutaishanica in Primorsky territory (black circles - localities; white circles - ecologically similar habitats without Q. wutaishanica).
Fig. 2. Quercus wutaishanica, twig with typical leaves and acorns; Nikolo-L'vovsk, end of July.
Fig. 3. Quercus wutaishanica, tree in typical habitat at Nikolo-L'vovsk; shrub on the left near stone - Armeniaca sibirica.
References
Huang Ch., Zhang Y., Bartholo B. 1999. Fagaceae Dumortier. In: Wu, Z., Raven P. H. (eds). Flora of China. Vol. 4 (Cycadaceae through Fagaceae). Science Press, Beijing, and Missouri Botanical Garden Press, St. Louis (http://flora.huh.harvard.edu/china/mss/volume04/index.htm)
Korsun O. 2003. [Breath of ancient forests]. Zabaikalye 5. (In Russian) (http://www.zab.chita.ru/archiv.php?gurnal=8&article=120)
Menitsky Yu.L. 1984. [The oaks of Asia]. Nauka, Leningrad. 316 pp. (In Russian.)
Ying T.-S., Boufford D.E. 1998. Phytogeography of the Qinling Mountains and a Comparison with the Flora and Vegetation of Japan. In: Boufford D.E., Ohba H. (Eds.) Sino-Japanese flora: its characteristics and diversification. The University Museum of the University of Tokyo. Bulletin No. 3 (http://www.um.u-tokyo.ac.jp/publish_db/Bulletin/no37/no37000.html)
Yun R., Wang H.-X., Hu Z.-A., Zhong M., Wei W., Qian Y.-Q. 1998. Genetic Differentiation of Quercus mongolica and Q. liaotungensis based on morphological observation, enzyme and DNA analysis. Acta Botanica Sinica 40: 1040-1046 (in Chinese, with English summary).
Full publication
Beljaev E.A. (2004): A new oak species for the flora of Russia, Quercis wutaishanica (Fagaceae) from Primorskiy territory Botanicheskii Zhurnal [Botanical Journal] 89(10): 1665-1672. ISSN: 0006-8136 (In Russian)
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Insular flora of Northern Okhotia
Maria G. Khoreva
Institute for biological problems of the North, Magadan, Russia
Contacts:
mkhoreva@ibpn.kolyma.ru
mkhoreva2002@mail.ru
K h o r e v a M. G. Island flora of the Northern Okhotia. - Magadan: IBPN FEB RAS, 2003. 173 pp. ISBN 5-94729-046-4. 6 Ills. 20 tables. Refs: 300 titles. Apps. 2.
Edited by Dr. A. N. Berkutenko
Reviewed: by Dr. V.Ju. Barkalov and Dr. A.N. Polezhaev
Key words: vascular plants, islands, flora, the Sea of Okhotsk.
The new data on distribution of vascular plants on islands and mainland of Northern Okhotia are given. The annotated list of vascular plants of the islands, including 420 species is compiled. The most of them (397 species) are of natural flora. The preliminary list of vascular plants of the Coastal Okhotian floristic district, including 1023 species (among them 150 adventitious ones) is also given. There are indications of the geographical groups, the life forms and the basic synonyms; rare and introduced species are especially marked. The comparative analysis of natural flora of islands and mainland of Northern Okhotia is given for the first time. The peculiarities of composition and structure of island flora are revealed in comparison with flora of nearby coast; features of distribution of vegetation on islands are established; influence of marine colonial birds on flora and vegetation of islands is shown, and ornitogenous plant communities are described. The distribution of relics and endemics (for Northern Okhotia) on islands is commented according to a history of flora formation; recommendations for island flora protection are given. Floristic researches on islands may be used for the further comparative work in the field of long-term monitoring of biodiversity and ecosystem dynamics. For botanists, geographers, ecologists, paleogeograhers, experts of wildlife management.
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