Nomenclatural novelties in Ann. Bot. Fennici 43(2). — Ann. Bot. Fennici 43: 160.
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Dai, Y. C. & Penttilä, R. 2006: Polypore diversity of Fenglin Nature Reserve, northeastern China. — Ann. Bot. Fennici 43: 81–96.

Field investigations on wood-rotting fungi in Fenglin Nature Reserve, northeastern China, were made in 1999–2002, and nearly 700 specimens were collected by the authors. Based mostly on the collected material, 161 poroid wood-inhabiting species were identified, and this paper gives a checklist of our results. Substrates and collecting data of each species are supplied in the checklist. Five species, Junghuhnia semisupiniformis (Murrill) Ryvarden, Postia ceriflua (Berk. & M.A. Curtis) Jülich, Postia rancida (Bres.) M.J. Larsen & Lombard, Skeletocutis papyracea A. David, and Tyromyces canadensis Overh. ex J. Lowe, are new to China. Antrodia hingganensis Y.C. Dai & Penttilä and Postia amurensis Y.C. Dai & Penttilä are new to science. The species diversity of polypores in Fenglin Nature Reserve is very high in regional, stand and tree species level when compared with North European data. The number of endemic species is much higher than that known from Europe. A high number of host tree species, lack of Pleistocene glaciations and favourable geography are the likely explanations to the observed high species diversity and level of endemism.

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Galati, B. G., Rosenfeldt, S. & Tourn, G. M. 2006: Embryological studies in Lotus glaber (Fabaceae). — Ann. Bot. Fennici 43: 97–106.

The development of the female gametophyte and the pollen grain, the ultrastructure of the mature megagametophyte and the endothelial cells in Lotus glaber were examined. The anther wall development follows the dicotyledonous type. The tapetum is secretory, the microspore tetrads are tetrahedral and pollen grains are shed at a bicellular stage. The mature ovule is anatropous, crassinucellar and bitegmic; integuments form a zig-zag micropyle. A T-shaped megaspore tetrad is formed and the lowest megaspore is functional and produces a 7-celled embryo-sac corresponding to the Polygonum type. The synergids show ultrastructural differences, involving dictyosomes and ERr; these differences suggest a functional differentiation, probably related to the reception of the pollen tube.

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Jantunen, J., Saarinen, K., Valtonen, A. & Saarnio, S. 2006: Grassland vegetation along roads differing in size and traffic density. — Ann. Bot. Fennici 43: 107–117.

Plant species composition in the highway intersections and along the highways and urban and rural roads was compared with that of field habitats (abandoned fields and field verges) and semi-natural grasslands in order to ascertain the importance of road verges as alternative habitats for the grassland flora. Species composition varied more within than between the road types. The mean number and cover of the indicator species of the semi-natural grassland vegetation in roadside habitats fell somewhere between the values obtained for field habitats and semi-natural grasslands. Plant species composition of the road verge vegetation was rarely comparable to that of semi-natural grasslands due to the young age of the verges, disturbance from road maintenance, and too intensive management, especially along the urban roads. However, sites with a good grassland vegetation were found along all road types in old verges on nutrient poor and sandy soil. Those variables were independent of the size of the road, whereas the variables related to the road size (verge width, pH, Na, Ca) proved less important for the grassland species.

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Ochyra, R., Isoviita, P., Zarnowiec, J. & Bednarek-Ochyra, H. 2006: Correct author citations for class and some subclass names of the Bryophyta. — Ann. Bot. Fennici 43: 118–122.

Systematic searching through the botanical and bryological literature has clarified correct author citation for the names of the four main classes of division Bryophyta: Sphagnopsida Schimp., Andreaeopsida J. H. Schaffn., Polytrichopsida Doweld, and Bryopsida Pax. In addition, three subclasses of Bryopsida should be correctly cited as follows: Tetraphididae Doweld, Buxbaumiidae Doweld, and Dicranidae Doweld. These citations are discussed in the context of long-standing ambiguity in the I.C.B.N. in treatment of suprafamilial names.

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Pellegrino, G. & Musacchio, A. 2006: Effects of defoliation on reproductive success in two orchids, Serapias vomeracea and Dactylorhiza sambucina. — Ann. Bot. Fennici 43: 123–128.

Herbivory is a very common phenomenon in nature, which may considerably alter subsequent survival and reproduction of affected plants. We examined the effects of three levels of experimental defoliation (0%, 50% or 100% of the leaves removed) on reproductive behaviour, leaf production, survival and flowering of two nectarless orchids, Serapias vomeracea and Dactylorhiza sambucina. Neither orchid species showed differences between the non-defoliated and defoliated plants in total pollinia mass, but seed production was significantly lower in defoliated plants. The male reproductive traits appear to be more buffered against the effect of defoliation than female traits. Defoliation also decreased leaf area and the probability of flowering in the year following the treatments. In this paper, we show that natural levels of herbivory can severely affect both current and future reproduction in these two orchid species.

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Törn, A., Rautio, J., Norokorpi, Y. & Tolvanen, A. 2006: Revegetation after short-term trampling at subalpine heath vegetation. — Ann. Bot. Fennici 43: 129–138.

We investigated how the timing and direction of low-pressure and short-term trampling influences revegetation of plant lifeforms at subalpine heath vegetation in northern Finland. Two trampling experiments were applied during summer 1999 to simulate the influence of unofficial trails that are common in popular recreation areas. Timing of trampling had no impact on the vegetation. Downward trampling reduced the total vegetation cover and the cover of evergreen dwarf shrubs more than did upward trampling, but only during the trampling year. The cover of vascular plants decreased directly after trampling, while the bryophytes showed a slower response to the treatment. Also the recovery of the vascular plants occurred more rapidly compared with the bryophytes. The cover of lichens increased in all treatments, apparently due to crumbling into smaller pieces. Although trampling impacts occur rapidly even under very low levels of use, revegetation is rapid if the trampling pressure is removed.

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Cai, X.-Z., Long, C.-L. & Liu, K.-M. 2006: Colocasia yunnanensis (Araceae), a new species from Yunnan, China. — Ann. Bot. Fennici 43: 139–142.

Colocasia yunnanensis C.L. Long & X.Z. Cai sp. nova from China (Yunnan Province, Yingjiang County) is described and illustrated. Diagnostic morphological characters that distinguish it from the morphologically fairly similar C. bicolor are presented. The clearest differences are that C. yunnanensis permanently has leaves with 5–9 pairs of big purple spots, a sterile zone with white hairs in the inflorescence, and a spadix without appendix. Chromosome number (2n = 28) was observed in the plants cultivated in the Kunming Botanical Garden.

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Dinç, M. & Doâan, H. H. 2006: Stachys yildirimlii (Lamiaceae), a new species from south Anatolia, Turkey. — Ann. Bot. Fennici 43: 143–147.

Stachys yildirimlii M. Dinç sp. nova (Lamiaceae) from Turkey is described and illustrated in line drawings. It belongs in subgen. Stachys sect. Ambleia and resembles S. cydni, from which it differs mainly in its crenate, oblong, obtuse and concolorous leaves, brown nutlets, and greenish indumentum. A distribution map of the new species is given. Nutlet coat surface of S. yildirimlii and S. cydni are displayed in SEM-photographs.

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Qin, X.-S., Ye, Y.-S., Xing, F.-W. & Ye, H.-G. 2006: Acalypha chuniana (Euphorbiaceae), a new species from Hainan Province, China. — Ann. Bot. Fennici 43: 148–151.

Acalypha chuniana H.G. Ye, Y.S. Ye, X.S. Qin & F.W. Xing sp. nova (Euphorbiaceae), a new species from Hainan Province, China, is described and illustrated. It is compared with the morphologically close A. siamensis.

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Ranjbar, M., Karamian, R. & Johartchi, M. R. 2006: Notes on the taxonomy of Hedysarum (Fabaceae) in Iran. — Ann. Bot. Fennici 43: 152–155.

Hedysarum johartchii Ranjbar sp. nova (Fabaceae) is described and illustrated from Iran. It is compared with the morphologically similar H. jaxarticum and H. iliense. Hedysarum macranthum and H. singarense are reported from Iran for the first time.

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Yin, J.-T. & Gusman, G. 2006: Arisaema tsangpoense (Araceae), a new species from southeast Tibet, China. — Ann. Bot. Fennici 43: 156–159.

Arisaema tsangpoense J.T. Yin & G. Gusman is described and illustrated as a new species from southeast Tibet, China. The morphological characters of A. tsangpoense and other morphologically close species, such as the Sino-Vietnamese A. victoriae, the Indian A. setosum, the Chinese A. lihenganum and the Thai A. smitinandii are discussed.

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