Nomenclatural novelties in Ann. Bot. Fennici 42(4). — Ann. Bot. Fennici 42: 316.
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Kotiranta, H. & Saarenoksa, R. 2005: Ceratobasidium and Oliveonia (Basidiomycota, Aphyllophorales) in Finland. — Ann. Bot. Fennici 42: 237–245.

Three species of Ceratobasidium, C. bicorne Eriksson & Ryvarden, C. cornigerum (Bourdot) D.P. Rogers and C. pseudocornigerum M.P. Christensen, and two species of Oliveonia, O. fibrillosa (Burt) Donk and O. pauxilla (H.S. Jacks.) Donk, are reported from Finland. Ceratobasidium cornigerum and O. fibrillosa are reported for the first time. The most widespread species seems to be C. cornigerum, whereas C. pseudocornigerum gives an impression of southern distribution and the Oliveonia species are very rare. The anamorph of Ceratobasidium bicorne Eriksson & Ryvarden is commonly isolated from conifer seedlings, but for the present no basidiocarps are observed. The substrates of the telemorphs are listed, the species are illustrated and a few reference collections from Russia were studied.

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Lanta, V. & Hazuková, I. 2005: Growth response of downy birch (Betula pubescens) to moisture treatment at a cut-over peat bog in the Sumava Mts., Czech Republic. — Ann. Bot. Fennici 42: 247–256.

The factors affecting the adaptation of downy birch (Betula pubescens) to different environmental conditions were studied in 2002–2003 by measurement of the production characteristics of saplings, which were experimentally planted in contrasting habitats at a cut-away peatland in the ?umava Mts., Czech Republic. These habitats varied in groundwater table depth. Together with this factor, we tested for the effect of shading, using shade cloth, on sapling growth. We conducted a greenhouse manipulative experiment to investigate the growth response of the downy birch saplings to varying groundwater table depths and soil types. We examined whether spatial distribution of naturally established birch stems changes along pronounced moisture gradient represented by transects placed at three distances from draining ditches. In the field, birch plants exhibited higher growth increments as well as higher leaf production under high groundwater table depth. This result is the opposite of the manipulated greenhouse experiment, which showed higher biomass increments for saplings under the low groundwater table depth. This was probably because downy birch, in principle, indicates terrestrification of peat bogs and high water table depth in greenhouse inhibited its growth. In field, birch saplings were probably stressed by drought. Positive shading effect on sapling growth was proven by leaf production measurements. The two term local variance method (TTLQV) revealed two contrasting dispersion patterns, for the birch population at drier and wetter sites of the post-mined peatbog. The aggregation was clear mainly at the drier site with lower abundance of birch plants within each sampled square. Higher abundance of individuals were found in squares of the wetter site, whereas the pattern was random there.

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Malm, T. & Isæus, M. 2005: Distribution of macroalgal communities in the central Baltic Sea. — Ann. Bot. Fennici 42: 257–266.

Two brown seaweeds, Fucus serratus and F. vesiculosus, are forming stands along the shores of the central Baltic Sea. We studied the regional variations in the abundance of F. vesiculosus, F. serratus and filamentous algae in the central Baltic Sea. Further, the hypothesis that regional differences in geomorphology and the north–south salinity gradient affect the dominance of the different species was tested. Extended manta tow diving and observations from a skiff with transparent shutters in the hull were used to map the distribution of macroalgae on different substrate types. Estimations of F. serratus recruitment and turf biomass were also performed. The results show significant differences in Fucus spp. vegetation among regions and substrate types. Both Fucus species were most abundant in the southern regions as compared with the northern regions. Fucus serratus was significantly more abundant on limestone bedrock than on boulders. The results are discussed in relation to salinity tolerance, eutrophication, life history, and interspecific competition.

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Margonska, H. B. 2005: Materials towards a revision of the genus Pseudoliparis (Orchidaceae, Malaxidinae). 3. Section Pseudoliparis. — Ann. Bot. Fennici 42: 267–291.

This paper is the first part of a taxonomic revision of the type section of the genus Pseudoliparis (Orchidaceae, Malaxidinae). One new species is described. Lectotypes are selected for Pseudoliparis laevis (Schltr.) Szlach. & Marg. and Pseudoliparis undulata (Schltr.) Szlach. & Marg.

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Puidet, E., Liira, J., Paal, J., Pärtel, M. & Pihu, S. 2005: Morphological variation in eight taxa of Anthyllis vulneraria s. lato (Fabaceae). — Ann. Bot. Fennici 42: 293–304.

Depending on the literature source, the number of existing Anthyllis species differs almost three-fold. In addition to the well-defined species, there are many cryptic ones. Statistical analysis (general linear models, discriminant analysis) of the morphological variation of eight Anthyllis taxa (for simplification classified as species) resulted in three groups of species: Vulneraria (A. vulneraria, A. maritima, A. arenaria and A. x baltica), Macrocephala (A. macrocephala, A. x colorata, and A. x polyphylloides), and Coccinea (A. coccinea). Distinguishing features of these groups were calyx colour, corolla colour, hairiness of stems and petioles, and plant height.

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Xie, L., Shi, J.-H. & Li, L.-Q. 2005: Identity of Clematis tatarinowii and C. pinnata var. ternatifolia (Ranunculaceae). — Ann. Bot. Fennici 42: 305–308.

Based on herbarium and field observations, combined with a transplant experiment, Clematis pinnata Maxim. is shown to be a variable species, and the names C. tatarinowii Maxim. and C. pinnata var. ternatifolia W.T. Wang are reduced to its synonymy.

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Uzunhisarcikli, M. E., Teknen, M. & Dogan, E. 2005: Centaurea marashica (Asteraceae), a new species from Turkey. — Ann. Bot. Fennici 42: 309–312.

Centaurea marashica E. Uzunhisarcikli, M. Teksen and E. Dogan sp. nova (sect. Pseudoseridia, Asteraceae) is described from South Anatolia, Turkey, and illustrated. It is morphologically similar to C. cheirolepidoides and C. isaurica, from which it differs mainly in the characters of leaves, appendages and pappus.

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Ghahremaninejad, F. 2005: Astragalus hekmat-safaviae (Fabaceae), a new species from Iran. — Ann. Bot. Fennici 42: 313–315.

Astragalus hekmat-safaviae F. Ghahremani. sp. nova (Fabaceae) is described and illustrated in line drawings. It is endemic to the Khorassan province of eastern Iran. The morphological characters (bifurcated trichomes, connate stipules, imparipinnate leaves, few leaflets, campanulate-tubular calyx) support a placement in Astragalus sect. Ammodendron, and the species appears to be most closely related to A. badghysi.

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