Holec, J. & Niemelä, T. 2000: Pholiota mucigera (Agaricales), a new species from a boreal old-growth forest. — Ann. Bot. Fennici 37: 79–83.
Abstract, Full text (print quality pdf)
Laaka-Lindberg, S. 2000: Substrate preference and reproduction in Lophozia silvicola (Hepaticopsida) in southern Finland. — Ann. Bot. Fennici 37: 85–93.
Abstract, Full text (print quality pdf)
Samecka-Cymerman, A., Kempers, A. J. & Kolon, K. 2000: Concentrations of heavy metals in aquatic bryophytes used for biomonitoring in rhyolite and trachybasalt areas: a case study with Platyhypnidium rusciforme from the Sudety Mountains. — Ann. Bot. Fennici 37: 95–104.
Abstract, Full text (print quality pdf)
Sepp, S., Bobrova, V. K., Troitsky, A. K. & Glazunova, K. P. 2000: Genetic polymorphism detected with RAPD analysis and morphological variability in some microspecies of apomictic Alchemilla. — Ann. Bot. Fennici 37: 105–123.
Abstract, Full text (print quality pdf)
Sokoloff, D. 2000: New combinations in Acmispon (Leguminosae, Loteae). — Ann. Bot. Fennici 37: 125–131.
Abstract, Full text (print quality pdf)
Welling, P. & Laine, K. 2000: Characteristics of the seedling flora in alpine vegetation, subarctic Finland, II. Floristic similarity between seedling flora and mature vegetation. — Ann. Bot. Fennici 37: 133–147.
Abstract, Full text (print quality pdf)
Zhu, R.-L. & So, M. L. 2000: Notes on the taxonomy and distribution of Lejeunea neelgherriana and Tuyamaella serratistipa (Hepaticae, Lejeuneaceae). — Ann. Bot. Fennici 37: 149–153.
Abstract, Full text (print quality pdf)
Nomenclatural novelties in Annales Botanici Fennici 37(2), 2000: — Ann. Bot. Fennici 37: 154.
Text
Holec, J. & Niemelä, T. 2000: Pholiota mucigera (Agaricales), a new species from a boreal old-growth forest. — Ann. Bot. Fennici 37: 79–83.
A new species of Agaricales (Basidiomycetes), Pholiota mucigera Holec & Niemelä, is described. It is characterized by fairly large size and almost white, a cup covered with very thick slime. No scales are found on the pileus surface. In the microscope the species can be identified by the absence of cystidia; spores are ca. 5.1–6.2 x 3.3–4 um and lack the germ pore. The species was found in a virgin spruce-dominated forest in Finland, growing on fallen Populus tremula. Differences between related species of Pholiota are discussed.
Laaka-Lindberg, S. 2000: Substrate preference and reproduction in Lophozia silvicola (Hepaticopsida) in southern Finland. — Ann. Bot. Fennici 37: 85–93.
I studied colonies of Lophozia silvicola Buch on wood, rock and soil in an old-growth forest in southern Finland. The frequency of fertile colonies is highest on wood. Rock is considered suboptimal on the basis of rare occurrences and lowest frequency of fertile colonies on boulders. On logs, L. silvicola is most frequent on Picea abies in late stages of decay and on middle-sized logs. The colonies were on average 1.94 m apart from each other, what indicated relatively good colonization ability. The overall distribution pattern of L. silvicola colonies is aggregated. Sexual and asexual colonies do not differ in a distance to the closest neighbouring colony.
Samecka-Cymerman, A., Kempers, A. J. & Kolon, K. 2000: Concentrations of heavy metals in aquatic bryophytes used for biomonitoring in rhyolite and trachybasalt areas: a case study with Platyhypnidium rusciforme from the Sudety Mountains. — Ann. Bot. Fennici 37: 95–104.
The elemental composition of the aquatic bryophyte Platyhypnidium rusciforme (Neck.) Fleisch. growing in streams embedded in trachybasalts (melaphyrs) and rhyolites (porphyrs) in the Polish and Czech Republic part of the Sudety Mts. was studied. Water from trachybasalt streams contained significantly higher concentrations of Ni as compared with water from rhyolite streams. Plants from rhyolite areas contained significantly higher levels of Mg and significantly lower levels of Co and Ni as compared with those from trachybasalt areas. The molar ratio of calcium and magnesium (Ca:Mg) in water (1.0–1.6 in trachybasalt streams and 0.5–1.8 in rhyolite streams) in some of the streams was different from the values presented in the literature. The Ca:Mg ratio in the plants was within the range of values calculated for serpentinite for plants in rhyolite streams, and higher than this range for plants in all trachybasalt streams. Concentrations of microelements in the plants were greater than the background values; however, there were no morphological aberrations in the plants. The relationships between all the variables concerning the chemical composition of mosses from the two areas were tested with the principal component analysis (PCA).
Sepp, S., Bobrova, V. K., Troitsky, A. K. & Glazunova, K. P. 2000: Genetic polymorphism detected with RAPD analysis and morphological variability in some microspecies of apomictic Alchemilla. — Ann. Bot. Fennici 37: 105–123.
Alchemilla L. (Rosaceae) contains numerous agamospermous microspecies, which are often treated as species. However, many of them are not clearly morphologically distinct, and their genetic variability is practically not investigated. In the present study, we used RAPD analysis to assess the genetic relatedness between Alchemilla microspecies. In all, 51 plants from 12 Alchemilla microspecies were analysed, and 116 characters were considered (68 RAPD bands over three primers and 48 morphological characters). Phylogenetic trees were constructed by the unweighted pair-group method, neighbour-joining and maximum parsimony methods. The genetic data supported most Fröhner’s system of sections. Despite the use of a limited set of data in the investigation and weak support values, some tentative conclusions could be based on congruence of the RAPD analysis and morphological data. Alchemilla acutiloba Opiz and A. micans Buser should be united as a single microspecies, A. micans; section Plicatae should be divided into two series Pubescentes and Barbulatae; and A. heptagona Juz. may be separated in Exuentes series of Ultravulgares.
Sokoloff, D. 2000: New combinations in Acmispon (Leguminosae, Loteae). — Ann. Bot. Fennici 37: 125–131.
Seven new combinations in Acmispon Raf. are proposed. The diagnostic characters and tribal position of the genus are discussed. A complete list of accepted Acmispon species is presented. The genus comprises eight species belonging to two sections. Seven species occur in North America, with the center of diversity along the west coast, primarily in California. One species is endemic to Chile.
Welling, P. & Laine, K. 2000: Characteristics of the seedling flora in alpine vegetation, subarctic Finland, II. Floristic similarity between seedling flora and mature vegetation. — Ann. Bot. Fennici 37: 133–147.
We compared the floristic composition of the seedling flora and the mature vegetation in several alpine plant communities. First, we examined whether it is possible to predict the floristic composition of the seedling flora from the floristic composition of the mature vegetation. Second, we explored whether severe disturbances increase the floristic similarity between these two phases in the life-cycle. It is possible to make a rough prediction across the plant communities. This is because almost all taxa existing in the seedling flora are also present in the mature vegetation, and because the parallel changes in the floristic composition occur along DCA axes. The floristic similarity between the seedling flora and the mature vegetation within the plant communities was low. The variation in the qualitative similarity was closely related to the cover of the regenerative groups. On the other hand, the variation in the quantitative similarity was not related to these factors. In most cases the seedling flora and the mature vegetation were not more similar within the severely disturbed plant communities than within the relatively undisturbed ones.
Zhu, R.-L. & So, M. L. 2000: Notes on the taxonomy and distribution of Lejeunea neelgherriana and Tuyamaella serratistipa (Hepaticae, Lejeuneaceae). — Ann. Bot. Fennici 37: 149–153.
The East Asian Lejeunea claviflora (Steph.) S. Hatt. is synonymous with L. neelgherriana Gottsche, known from Bhutan, China, India, Nepal, Sikkim, and Sri Lanka. Tuyamaella veillonii Tixier, previously reported only from New Caledonia, is proposed as a synonym of T. serratistipa S. Hatt., a species widespread in SE Asia. A detailed description and illustration of L. neelgherriana is provided. Taxonomic notes and distribution of L. neelgherriana and Tuyamaella serratistipa are presented.
Nomenclatural novelties in Annales Botanici Fennici 37(2), 2000
Pholiota mucigera Holec & Niemelä, sp. nova, p. 080
Acmispon maritimus (Nutt.) D. D. Sokoloff, comb. nova, p. 129
Acmispon parviflorus (Benth.) D. D. Sokoloff, comb. nova, p. 129
Acmispon Raf. sect. Anisolotus (Bernh.) D. D. Sokoloff, comb. nova, p. 129
Acmispon brachycarpus (Benth.) D. D. Sokoloff, comb. nova, p. 130
Acmispon subpinnatus (Lag.) D. D. Sokoloff, comb. nova, p. 130
Acmispon rubriflorus (Sharsm.) D. D. Sokoloff, comb. nova, p. 130
Acmispon denticulatus (Drew) D. D. Sokoloff, conb. nova, p. 130