ISSN 0003-3847
© Finnish Zoological and Botanical Publishing Board 2003

Contents of Volume 40 Number 2, 2003

Angelov, G. B. 2003: Isoenzyme variation and genetic relationships among Elytrigia junceiformis, E. x littorea and E. repens (Triticeae: Poaceae). — Ann. Bot. Fennici 40: 73–80.
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Chung, M. Y. & Chung, M. G. 2003: The breeding systems of Cremastra appendiculata and Cymbidium goeringii: high levels of annual fruit failure in two self-compatible orchids. — Ann. Bot. Fennici 40: 81–85.
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Wagner, M., Poschlod, P. & Setchfield, R. P. 2003: Soil seed bank in managed and abandoned semi-natural meadows in Soomaa National Park, Estonia. — Ann. Bot. Fennici 40: 87–100.
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Zhu, R.-L. & Grolle, R. 2003: Taxonomy and distribution of Lejeunea exilis (Lejeuneaceae, Hepaticae). — Ann. Bot. Fennici 40: 101–106.
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Dai, Y. C., Niemelä, T. & Qin, G. F. 2003: Changbai wood-rotting fungi 14. A new pleurotoid species Panellus edulis. — Ann. Bot. Fennici 40: 107–112.
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Duran, A. & Dural, H. 2003: Genista vuralii (Fabaceae), a new species from Turkey. — Ann. Bot. Fennici 40: 113–116.
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Ghahremani-nejad, F. 2003: Astragalus zoshkensis (Fabaceae), a new species from Iran. — Ann. Bot. Fennici 40: 117–121.
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Göktürk, R. S. & Sümbül, H. 2003: Cephalaria aytachii (Dipsacaceae), a new species from central Anatolia, Turkey. — Ann. Bot. Fennici 40: 123–127.
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Koponen, T. & Touw, A. 2003: Synopsis and nomenclature of Thuidium and related genera in China. — Ann. Bot. Fennici 40: 129–133.
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Kurtto, A. & Eriksson, T. 2003: Atlas Florae Europaeae notes. 15. Generic delimitation and nomenclatural adjustments in Potentilleae (Rosaceae). — Ann. Bot. Fennici 40: 135–141.
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Szlachetko, D. L. 2003: Nomenclatural adjustments in Caladeniinae (Orchidaceae, Thelymitroideae). — Ann. Bot. Fennici 40: 143–145.
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Yilmaz, Ö., Kaynak, G. & Vural, M. 2003: A new taxon of Linum (Linaceae) from NW Anatolia, Turkey. — Ann. Bot. Fennici 40: 147–150.
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Nomenclatural novelties in Ann. Bot. Fennici 40(2). — Ann. Bot. Fennici 40: 151.
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Angelov, G. B. 2003: Isoenzyme variation and genetic relationships among Elytrigia junceiformis, E. x littorea and E. repens (Triticeae: Poaceae). — Ann. Bot. Fennici 40: 73–80.

Electrophoresis of eleven enzymes was employed to study isoenzyme variation and genetic affinities among the hybrid Elytrigia x littorea and its parents E. repens and E. junceiformis. Elytrigia x littorea shared most of isoenzyme profiles and isoforms of its parents but no evidence for a strict additiveness was observed. The isoenzyme structure of the hybrid resembled more the structure of E. repens. Two alternative interpretations for this are discussed. The exact genome composition of E. x littorea should be studied to confirm which interpretation of the isoenzyme data is correct.

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Chung, M. Y. & Chung, M. G. 2003: The breeding systems of Cremastra appendiculata and Cymbidium goeringii: high levels of annual fruit failure in two self-compatible orchids. — Ann. Bot. Fennici 40: 81–85.

Little is known about the breeding systems and pollination biology of terrestrial orchids in northeastern Asia. We investigated the breeding system of Cremastra appendiculata and Cymbidium goeringii in populations (26 individuals, 120 x 120 m for Cremastra appendiculata; 87 individuals, 200 x 500 m for Cymbidium goeringii) on Oenaro Island, South Korea. The two orchid species showed little fruit set in natural conditions (1.3%–2.0% for Cremastra appendiculata and 0.4%–0.6% for Cymbidium goeringii). However, a great increase in fruit set was achieved by hand-pollinations: artificial self-pollination and geitonogamous pollination, with fruit set of 95.7% and 96.6% for Cremastra appendiculata, respectively, and 95.5% and 95.6% for Cymbidium goeringii, respectively, indicating that the two species are highly self-compatible. Fruit set for pollinator-excluded flowers of Cremastra appendiculata and Cymbidium goeringii was 0%, indicating that the two species were neither autogamous nor agamospermous. The extremely low fruit set observed in the two species under natural conditions may be attributable to pollinator limitation.

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Wagner, M., Poschlod, P. & Setchfield, R. P. 2003: Soil seed bank in managed and abandoned semi-natural meadows in Soomaa National Park, Estonia. — Ann. Bot. Fennici 40: 87–100.

The seed bank of four sites representing different stages of semi-natural meadow succession in a west Estonian floodplain was investigated using the seedling emergence method. For 40 species, seed bank persistence types could be determined. Most grassland species were found to have a short-term persistent or a transient seed bank. Sites where management had ceased were found to have a significantly higher number of seeds of Carex spp., and, at least at the long-term abandoned site, a significantly lower number of seeds of grassland herbs. The highest number of grass seeds was found at the managed site, although this was non-significant. Similarity between seed bank and vegetation decreased with increasing time since abandonment and with soil depth. Implications for restoration are discussed. This study confirms that only on recently abandoned sites can the seed bank play a significant role in meadow restoration.

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Zhu, R.-L. & Grolle, R. 2003: Taxonomy and distribution of Lejeunea exilis (Lejeuneaceae, Hepaticae). — Ann. Bot. Fennici 40: 101–106.

Drepanolejeunea subacuta (Horik.) H.A. Mill. et al. and Lejeunea lancistipula (Steph.) H.A. Mill. et al., previously known only from Taiwan and New Guinea, respectively, are proposed as synonyms of Lejeunea exilis (Reinw. et al.) Grolle. Lejeunea exilis is a highly variable species and its diagnostic characteristics include (1) dimorphic underleaves (bilobed and subulate-ovate), (2) very small size of plants, (3) eplicate perianths always strongly emergent, (4) highly variable shape of leaves, (5) acute to apiculate leaf apex of the leaf in well developed plants, and (6) asexual reproduction usually by means of ribbon-like marginal regenerants. Lejeunea exilis is reported for the first time for China. A detailed description and illustrations of Lejeunea exilis are provided. The occurrence of ribbon-like marginal regenerants in the Lejeuneaceae is discussed.

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Dai, Y. C., Niemelä, T. & Qin, G. F. 2003: Changbai wood-rotting fungi 14. A new pleurotoid species Panellus edulis. — Ann. Bot. Fennici 40: 107–112.

A new species of pleurotoid agaric, Panellus edulis Y.C. Dai, Niemelä & G.F. Qin, is described from NE and SW China, Japan and the Russian Far East. It is closely related to P. serotinus (Schrad. : Fr.) Kühner, with which it was previously confused. The new species differs from P. serotinus mainly by its larger size, ventricose cystidia, and, in particular, mild taste; the European P. serotinus is bitter-tasting. Panellus edulis is one of the best-ranked edible mushrooms in NE Asia.

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Duran, A. & Dural, H. 2003: Genista vuralii (Fabaceae), a new species from Turkey. — Ann. Bot. Fennici 40: 113–116.

Genista vuralii A. Duran & H. Dural sp. nova is described from the transition territory of Central and North Anatolia in Turkey. It is related to G. lydia and G. sandrasica, from which it mainly differs in its leaves, calyx and legumes.

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Ghahremani-nejad, F. 2003: Astragalus zoshkensis (Fabaceae), a new species from Iran. — Ann. Bot. Fennici 40: 117–121.

Astragalus zoshkensis (Fabaceae) from Khorassan province of Iran is described as a new species and illustrated. It is characterized by a long (2.5–5 cm) beak of pod, free stipules, long woody marcescent petioles, and short stems. The new species belongs to Astragalus section Dissitiflori and is related to A. sumbari and A. tolgorensis.

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Göktürk, R. S. & Sümbül, H. 2003: Cephalaria aytachii (Dipsacaceae), a new species from central Anatolia, Turkey. — Ann. Bot. Fennici 40: 123–127.

Cephalaria aytachii R.S. Göktürk & Sümbül sp. nova (Dipsacaceae) is described from central Anatolia, Turkey. It is illustrated in line drawings, its diagnostic morphological characters are given, and its pollen structure is examined.

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Koponen, T. & Touw, A. 2003: Synopsis and nomenclature of Thuidium and related genera in China. — Ann. Bot. Fennici 40: 129–133.

The genera Thuidium Bruch & Schimp. and Pelekium Mitt. have ten species in China, and the genera Aequatoriella A. Touw and Bryochenea C. Gao & K.C. Chang have one species each. The generic and specific nomenclature of these taxa in China is compared and a list of recommended names is given. Pelekium microphyllum (Schwaegr.) T.J. Kop. & A. Touw (Haplohymenium microphyllum Schwaegr.) is a new combination. The status of Thuidium unipinnatum Y.-M. Fang & T.J. Kop. and the genus Bryochenea need further study.

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Kurtto, A. & Eriksson, T. 2003: Atlas Florae Europaeae notes. 15. Generic delimitation and nomenclatural adjustments in Potentilleae (Rosaceae). — Ann. Bot. Fennici 40: 135–141.

In the Atlas Florae Europaeae, Comarum, Dasiphora, Drymocallis and Sibbaldianthe, which are commonly included in Potentilla, are recognized as independent genera. Due to the generic delimitation adopted and some taxonomic remodellings, the following new nomenclatural combinations are proposed and discussed: Drymocallis corsica (Soleir. ex Lehm.) Kurtto, D. halacsyana (Degen) Kurtto & Strid, D. longisepala (Strid) Kurtto & Strid, D. longisepala subsp. epirotica (Soják) Kurtto & Strid, D. malacophylla (Borbás) Kurtto, Sibbaldianthe bifurca (L.) Kurtto & T. Eriksson, and S. bifurca subsp. orientale (Juz.) Kurtto & T. Eriksson. Potentilla aspegrenii Kurtto is proposed as a replacement name (nomen novum) for the illegitimate name P. sordida Fries ex Aspegren. Alternative names published by Wolf in his monograph of Potentilla in 1908 are discussed and listed.

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Szlachetko, D. L. 2003: Nomenclatural adjustments in Caladeniinae (Orchidaceae, Thelymitroideae). — Ann. Bot. Fennici 40: 143–145.

Recent nomenclatural changes in Caladeniinae (Orchidaceae, Thelymitroideae) are briefly discussed. Caladenia R. Br. sect. Caladeniastrum Szlach. is elevated to generic rank and six new combinations at species level are proposed.

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Yilmaz, Ö., Kaynak, G. & Vural, M. 2003: A new taxon of Linum (Linaceae) from NW Anatolia, Turkey. — Ann. Bot. Fennici 40: 147–150.

Linum pamphylicum (Boiss.) Podp. subsp. olympicum G. Kaynak & Ö. Yilmaz subsp. nova is described and illustrated from the South of Uluda Mountain (Bursa) in Turkey. It is characterised by a flowering stems with scabrid ridges, spathulate, acute basal leaves and linear or linear-spathulate cauline leaves.

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