Bäck, S. & Likolammi, M. 2004: Phenology of Ceramium tenuicorne in the SW Gulf of Finland, northern Baltic Sea. — Ann. Bot. Fennici 41: 95–101.
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Tyler, T. 2004: Reevaluation of the species of Hieracium sect. Hieracium that were described by Hylander from introduced populations in Scandinavian parks. — Ann. Bot. Fennici 41: 103–131.
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Ji, Y.-H., Li, H. & Xu, Z.-F. 2004: Arisaema menglaense (Araceae), a new species from southern Yunnan, China. — Ann. Bot. Fennici 41: 133–135.
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Tyler, T. 2004: New species, varieties and combinations of Hieracium from the Swedish provinces Gotland and Östergötland. — Ann. Bot. Fennici 41: 137–141.
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Ghahremaninejad, F. 2004: Astragalus baharensis (Fabaceae), a new species from NE Iran. — Ann. Bot. Fennici 41: 143–145.
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Deniz, I. G. & Sümbül, H. 2004: Allium elmaliense (Alliaceae), a new species from SW Anatolia, Turkey. — Ann. Bot. Fennici 41: 147–150.
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Zeng, Q.-W. & Law, Y.-W. 2004: Manglietia longipedunculata (Magnoliaceae), a new species from Guangdong, China. — Ann. Bot. Fennici 41: 151–154.
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Nomenclatural novelties in Ann. Bot. Fennici 41(2). — Ann. Bot. Fennici 41: 155.
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Bilgin, A., Yalcin, E., Kutbay, H. G. & Kök, K. 2004: Foliar N and P dynamics of Heracleum platytaenium (Apiaceae) in relation to edaphic characteristics along an elevation gradient in northern Turkey. — Ann. Bot. Fennici 41: 85–93.
Heracleum platytaenium (Apiaceae) is an endemic species in the Central Black Sea region, in the north of Turkey. Its foliar N and P dynamics and absolute and proportional N and P resorptions along an elevation gradient were investigated. The foliar N and P concentrations varied along the elevation gradient and during the growing season in basal leaves. N and P concentrations of stem leaves did not change significantly during the growing season, although significant changes were observed along the topographic gradient. N and P concentrations of basal leaves declined during May and June, and increased through July. Absolute and proportional resorptions were usually higher in slope positions in both basal and stem leaves, except for N resorption in stem leaves. N and P resorptions were more effective in the slopes between the upper and lower parts of the gradient. Absolute and proportional N and P resorptions in basal and stem leaves were significantly correlated with foliar N and P concentrations. Soil fertility varied significantly along the elevation gradient, but no consistent pattern was found between soil fertility and resorption. Foliar resorption was significantly correlated with soil moisture, and nutrient resorption probably reflected topographic differences in soil moisture rather than in soil fertility. Root/shoot ratio was comparatively low at the beginning of the growing season and increased towards the end of the growing season.
Bäck, S. & Likolammi, M. 2004: Phenology of Ceramium tenuicorne in the SW Gulf of Finland, northern Baltic Sea. — Ann. Bot. Fennici 41: 95–101.
The occurrence of Ceramium tenuicorne in the SW Gulf of Finland seems to be determined by physical factors, species competition and adaptation to the seasonal environment of the northern Baltic Sea. Due to the strong competition, in the upper sublittoral C. tenuicorne grew mainly epiphytically. Asexual plants were most common around the year. In July–August tiny C. tenuicorne was found also in the upper sublittoral. At that time plants with cystocarps, tetrasporangia and propagules were observed. In October, after the decline of Cladophora glomerata, a nap-like belt of C. tenuicorne grew at depths of less than one metre and a short-lived female generation with cystocarps was observed. In late autumn, most of the filaments close to the shore break down due to wave action, and in winter due to the ice scraping while deeper growing individuals are perennial. Ceramium tenuicorne is physiologically adapted to the extreme environment of the Baltic Sea. Photosynthetic pigment content of C. tenuicorne exhibit seasonal changes. The higher winter values of pigments can be considered an adaptation to an extreme environment, caused by low light. In summer, pale individuals with red basal parts grew at 1–2 m depth, having grown from old, overwintered basal parts. The pale colour is due to low concentrations of phycoerythrin. The fastest growth occurs in late spring, and in summer months the individuals are tall, the cells are long, and the number of secondary branches is exceptionally high. The cortical cells of many individuals grew upwards in the older parts of the thallus. The form of the cells was often conical, but some individuals with oval cells were observed.
Tyler, T. 2004: Reevaluation of the species of Hieracium sect. Hieracium that were described by Hylander from introduced populations in Scandinavian parks. — Ann. Bot. Fennici 41: 103–131.
Hylander treated 144 species of Hieracium sect. Hieracium found in Scandinavian parks, 132 of which were described for the first time. However, he did not supply any determination key, only a few species were illustrated and hints about the differences between species were few. In addition, the species concept of Hylander was obviously much narrower than what has been agreed upon by those working with native Scandinavian species of this group. The species treated have all been introduced to northern Europe, presumably from southern Germany or France, during the latter half of the 19th century as contamination of commercial grass-seed, but the majority of the species is still not known from any native occurrences. In the present paper, all these "park-Hieracia" are described in a standardized manner, and illustrations as well as a determination key to all species are provided. The types are indicated for all species and six taxa are lectotypified. The number of species have been reduced to 95 by merging those species that were found to be identical or unacceptably closely similar. A way of constructing a numerical description taking into consideration 33 different characters is described. The numerical description was used to calculate an overall similarity index for all pairs of species and thereby identify synonymous names. In addition, the numerical description was found to be of great help when constructing the determination key.
Ji, Y.-H., Li, H. & Xu, Z.-F. 2004: Arisaema menglaense (Araceae), a new species from southern Yunnan, China. — Ann. Bot. Fennici 41: 133–135.
Arisaema menglaense Y.H. Ji, H. Li & Z.F. Xu (Araceae: Arisaemateae), a new species from the southern Yunnan Province of China is described and illustrated. The morphological characters of A. menglaense and the related species A. omkoiense and A. pingbianense are compared.
Tyler, T. 2004: New species, varieties and combinations of Hieracium from the Swedish provinces Gotland and Östergötland. — Ann. Bot. Fennici 41: 137–141.
Three new species, i.e. Hieracium evae T. Tyler, Hieracium jonsbergense T. Tyler, Hieracium subnitidum Dahlst. ex T. Tyler, and one variety, i.e. H. ravidum Brenn. var. exaltifrons T. Tyler var. nov. are described. Hieracium myrtillinum (Johanss. ex Dahlst.) T. Tyler comb. nova is proposed. All are based on material collected in the SE Swedish provinces Gotland and Östergötland.
Ghahremaninejad, F. 2004: Astragalus baharensis (Fabaceae), a new species from NE Iran. — Ann. Bot. Fennici 41: 143–145.
Astragalus baharensis is described from Iran as a new species in Astragalus sect. Ammodendron (Fabaceae), and illustrated in line drawings. It is related to and compared with A. macrobotrys.
Deniz, I. G. & Sümbül, H. 2004: Allium elmaliense (Alliaceae), a new species from SW Anatolia, Turkey. — Ann. Bot. Fennici 41: 147–150.
Allium elmaliense I.G. Deniz & Sümbül sp. nova (Alliaceae) is described and illustrated from SW Anatolia, Turkey. It is compared with the morphologically fairly similar species A. cyrilli, A. orientale and A. asclepiadeum.
Zeng, Q.-W. & Law, Y.-W. 2004: Manglietia longipedunculata (Magnoliaceae), a new species from Guangdong, China. — Ann. Bot. Fennici 41: 151–154.
Manglietia longipedunculata Q.W. Zeng & Law sp. nova (Magnoliaceae) is described and illustrated from Guangdong, China. It is closely related to M. pachyphylla and M. crassipes, from which it differs mainly in its villose, slender peduncles, and more numerous, longer tepals.