Nomenclatural novelties in Ann. Bot. Fennici 44(3). — Ann. Bot. Fennici 44: 240.
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Duan, D. Y., Li, W. Q., Liu, X. J., Ouyang, H. & An, P. 2007: Seed germination and seedling growth of Suaeda salsa under salt stress. — Ann. Bot. Fennici 44: 161–169.

The effect of increasing concentrations (0, 0.05, 0.1, 0.2, 0.3, 0.4, 0.6 mol l^–1) of different salts (Na₂SO₄, Na₂CO₃, MgSO₄, NaCl, MgCl₂) in solution and soil extract solutions of comparable osmotic potentials on germination of Suaeda salsa seeds was studied. Seed germination decreased significantly with increased salinity. Germination inhibition was in the following order: MgCl₂ > Na₂SO₄ > Na₂CO₃ > NaCl > soil extract solution > MgSO₄. Non-germinated seeds under all salt treatments recovered completely when transferred to distilled water, indicating that there was little specific ion effect on seed viability. Seedling growth was studied under different levels of NaCl salinity (0, 0.05, 0.1, 0.2, 0.4 mol l^–1) stress. Low levels of salinity (0.05–0.1 mol l^–1) increased seedling growth, while high levels (> 0.2 mol l^–1 NaCl) inhibited the growth significantly. Under salt stress, the leaves accumulated high levels of proline, whereas their soluble sugar content decreased with an increase in salinity. Na⁺ content in leaves, stems and roots increased with salinity. Ions were mostly accumulated in the shoot, especially in leaves. Under the highest level of salinity (0.4 mol l^–1 NaCl), Na⁺ accounted for more than 91.6% of the ions in leaves, 92.6% in stems and 84.1% in roots. Inorganic ions, especially Na⁺, were more important than organic solutes in the osmoregulation in S. salsa to adapt to a saline environment.

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Moraczewski, I. R. & Sudnik-Wójcikowska, B. 2007: Polish urban flora: conclusions drawn from Distribution Atlas of Vascular Plants in Poland. — Ann. Bot. Fennici 44: 170–180.

The aim of the paper was to determine a group of plant species whose distribution is highly correlated with the urbanization pattern in Poland. For this purpose the atlas of species distribution in Poland providing about 2300 cartograms was used. The population density was taken as an urbanization marker. By means of ?²-test and the linear correlation coefficient species whose distribution was highly correlated with population density were selected. The raw list of species was consequently narrowed down to alien taxa, which did not reach the limits of their distribution in Poland. Species proposed as urban indicators have a continental character as well as high light and temperature requirements. Distributions of nine such species were mapped. Some synthetic variables showing cumulative distribution (referred to as mean and sum) proved to be even better urban indicators. The urbanophiles determined for Warsaw and cities from the western part of central Europe shared about 50% of the species.

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Piatek, M. 2007: Taxonomy, host spectrum and global distribution of Anthracoidea siderostictae (Ustilaginomycetes). — Ann. Bot. Fennici 44: 181–185.

The first record of Anthracoidea siderostictae Kukkonen from Russia provides the background to review the taxonomy, host spectrum and world distribution of this rare smut fungus. The Russian collection is fully described and illustrated with drawings of the infected plant, and with LM and SEM micrographs of spores. Anthracoidea siderostictae is now known from six localities in China, Japan and Russia, where it infects representatives of Carex sect. Siderostictae. The global distribution of A. siderostictae is mapped.

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Piatek, J. 2007: Chrysophyte stomatocysts from sediments in a man-made water reservoir in central Poland. — Ann. Bot. Fennici 44: 186–193.

Twelve chrysophyte stomatocysts are reported from sediments in a man-made water reservoir in the village of Wymys?ów in central Poland. Three morphotypes are described as new to science: stomatocysts #40, #41 and #42. The descriptions of two other stomatocysts, 161 Zeeb & Smol 1993 emend. Piatek J. and 198 Duff & Smol 1994, forma A Pla 2001 emend. Piatek J., are emended to include some additional morphological characters, which had not been observed previously. The two morphotypes are also newly reported from Poland. Stomatocyst 171 Zeeb & Smol 1993 is recorded in Poland for the first time from extant material.

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Schmalholz, M. & Kiviniemi, K. 2007: Relationship between abundance and fecundity in the endangered grassland annual Euphrasia rostkoviana ssp. fennica. — Ann. Bot. Fennici 44: 194–203.

We examined 18 populations of the endangered Euphrasia rostkoviana ssp. fennica situated in managed semi-natural grasslands or gravelled road verges in ten extant localities in south-eastern Sweden. The major threat to the subspecies is the steady decrease in habitat area and quality. In each population, abundance and fecundity of individuals were examined. Local factors (soil pH, litter-layer depth and vascular species richness) and isolation were also measured. We specifically wanted to examine if there was a positive relationship between abundance (population size and density) and fecundity in the investigated taxon. Larger populations of E. rostkoviana ssp. fennica were found to be denser. Population size and density were both significantly positively related to fecundity. A higher variability in seed production was also detected for individuals in sparse populations. An Allee effect, i.e. a reduced fecundity in small and sparse populations, could thus be demonstrated for the already strongly threatened subspecies.

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Tyler, T. 2007: "Hieracium sublividum" (Asteraceae) — more than one species. — Ann. Bot. Fennici 44: 204–212.

The material in Swedish herbaria previously identified as Hieracium sublividum (Dahlst.) Johanss. was revised using both the traditional taxonomical approach and PCA analysis based on 44 morphological characters. Only about half of the specimens did belong to H. sublividum s. stricto (known from the provinces Småland, Öland and Östergötland). Three new species were revealed and are described anew as H. askii T. Tyler (from Småland), H. emblae T. Tyler (from Gotland) and H. hangvarense T. Tyler (from Gotland). The characteristics of all four accepted species are described, illustrated and discussed.

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Väliranta, M. & Weckström, J. 2007: Applying principal components analysis (PCA) for separating wingless birch fruits — a palaeoecological case study from northern Norway. — Ann. Bot. Fennici 44: 213–218.

We used principal components analysis (PCA) to distinguish wingless birch fruit bodies of different birch species from each other. Firts, we measured seven dimension variables from a modern fruit selection and analysed their explanatory power using PCA. Then, we included the subfossil birch fruits in PCA as passive variables and compared the result with the data gathered by visual analysis. PCA clearly separates the modern fruits of Betula nana, B. pubescens ssp. czerepanovii, and B. pendula from each other. PCA also provides an effective and objective tool for producing more detailed palaeoecological data of the occurrences of different birch species than does the traditional visual analysis only. Instead of classifying fossil birch fruits into rough type-classes at least Betula nana, B. pubescens ssp. czerepanovii, and B. pendula can be separated from each other on the basis of the morphological features.

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Uysal, T., Demirelma, H., Ertugrul, K., Garcia-Jacas, N. & Susanna, A. 2007: Centaurea glabro-auriculata (Asteraceae), a new species from Turkey. — Ann. Bot. Fennici 44: 219–222.

Centaurea glabro-auriculata Uysal & Demirelma sp. nova (Asteraceae) is described and illustrated from Central Taurus, Turkey. The species grows in stony places in Derebucak (C3 Konya Province). It is morphologically most similar to C. drabifolioides and C. cheirolepidoides, which are likewise endemic to a restricted area within Turkey.

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Väre, H. 2007: Typification of plant names published by Jacob Henrik af Forselles. — Ann. Bot. Fennici 44: 223–226.

The plant names Artemisia coarctata and Poa remota published by Jacob Henrik af Forselles (1785–1855) are lectotypified. An earlier designation of a neotype for P. remota is corrected to be a lectotype. The type specimens have been collected in the biogeographical province of Karelia australis, SE Finland.

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Wang, D. & Yu, D. 2007: A new subspecies of Myriophyllum oguraense (Haloragaceae) from China. — Ann. Bot. Fennici 44: 227–230.

Myriophyllum oguraense Miki subsp. yangtzense D. Wang subsp. nova (Haloragaceae) from China, is described and illustrated. An identification key to the morphologically most similar taxa is provided. The new subspecies differs from M. oguraense subsp. oguraense by having large fruits and mericarps with two longitudinal ridges on the dorsal surface. The two taxa exhibit a disjunct distribution pattern, M. oguraense subsp. yangtzense being confined to the lower Yangtze valley in China, whereas M. oguraense subsp. oguraense is restricted to Japan.

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Yin, J. T. & Gusman, G. 2007: Arisaema muratae (Araceae), a new species from western Yunnan, China. — Ann. Bot. Fennici 44: 231–234.

Arisaema muratae G. Gusman & J.T. Yin is described as a new species native to western Yunnan, China, along the border with Myanmar. Arisaema muratae belongs in section Sinarisaema. Its morphological characters are discussed and compared to other closely related species.

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Tyler, T. 2007: Lectotypification of names of Hieracium (Asteraceae) described from the Swedish province of Värmland. — Ann. Bot. Fennici 44: 235–239.

Forty-one names of species and varieties of Hieracium sect. Hieracium, H. sect. Vulgata and H. sect. Bifida originally described from the province of Värmland, western central Sweden, are lectotypified.

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