Hæggström, C.-A. & Skytén, R. 1996: Flowering and individual survival of a population of the grass Brachypodium sylvaticum in Nåtö, Åland Islands, SW Finland. — Ann. Bot. Fennici 33: 1–10.
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Bragazza, L. & Gerdol, R. 1996: Response surfaces of plant species along water-table depth and pH gradients in a poor mire on the southern Alps (Italy). — Ann. Bot. Fennici 33: 11–20.
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Kukkonen, I. & Lye, K. A. 1996: Cyperus medusaeus (Cyperaceae) redescribed. — Ann. Bot. Fennici 33: 21–27.
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Romo, A., Peris, J. B. & Stübing, G. 1996: The genus Pinguicula (Lentibulariaceae) in Morocco. — Ann. Bot. Fennici 33: 29–32.
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Balagurova, N., Drozdov, S. & Grabovik, S. 1996: Cold and heat resistance of five species of Sphagnum. — Ann. Bot. Fennici 33: 33–37.
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Enroth, J. 1996: Amendments to Australasian Cryphaea (Cryphaeaceae, Bryopsida). — Ann. Bot. Fennici 33: 39–44.
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Piippo, S. 1996: Notes on Chinese Geocalycaceae (Hepaticae). 1. — Ann. Bot. Fennici 33: 45–49.
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He, X.-L. 1996: Type studies on Pycnolejeunea (Lejeuneaceae, Hepaticae), II. — Ann. Bot. Fennici 33: 51–58.
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He, X.-L. 1996: Type studies on Pycnolejeunea (Lejeuneaceae, Hepaticae), III. Two Asiatic species described by Hoffmann. — Ann. Bot. Fennici 33: 59–64.
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Hæggström, C.-A. & Skytén, R. 1996: Flowering and individual survival of a population of the grass Brachypodium sylvaticum in Nåtö, Åland Islands, SW Finland. — Ann. Bot. Fennici 33: 1–10.
A population of the grass Brachypodium sylvaticum (Hudson) Beauv., located in and outside a permanent quadrate (size 2 x 2 m) in a dense Corylus stand, was studied from 1964 to 1984. Each individual (tuft) was marked and the culms with spikelets counted every year. The vegetation of the quadrate, and the soil in its vicinity, were studied. During the study the population increased from four tufts with only one culm in one tuft in 1964 to more than 80 tufts with more than 3 000 culms in 1984. The succession of the vegetation revealed that the graminids increased continuously, especially after 1983, when all trees and shrubs were cut. The earliest observed tufts were still alive in 1984. The annual mortality of the tufts was absent, or very low during most of the time. It is suggested that B. sylvaticum is principally a stress-tolerant competitor.
Bragazza, L. & Gerdol, R. 1996: Response surfaces of plant species along water-table depth and pH gradients in a poor mire on the southern Alps (Italy). — Ann. Bot. Fennici 33: 11–20.
Response surfaces along gradients of water-table depth and water pH were obtained for the commonest vascular and bryophyte species in a nutrient-poor mire on the southern Alps of Italy. Depth to the water table was the major factor, whereas the chemical gradient was of lower importance in structuring vegetation. The distributional pattern of vascular plants is considered to be determined by physiological tolerance along the gradient in depth to the water table. Hence, interspecific competition in the field layer is considered of minor importance, except for interactions between ericaceous shrubs. Bryophytes probably interact to a greater extent, especially in lawns and carpets. Sphagnum species appear to be better competitors, as they almost totally exclude other mosses from those habitats. Interactions between species mainly result in dominance patterns, rather than in a clear habitat partitioning along the water-table gradient. Strong dominance by single species rather than clear habitat partitioning along the water-table gradient is interpreted as a result of interactions between species. Species showing ruderal traits are more typical of wet habitats (carpets and hollows), where disturbance is likely to play a major role in structuring the vegetation in the bottom layer.
Kukkonen, I. & Lye, K. A. 1996: Cyperus medusaeus (Cyperaceae) redescribed. — Ann. Bot. Fennici 33: 21–27.
Cyperus medusaeus Chiov., an endemic species of coastal Somalia, was described from a sterile specimen. Its identity is confirmed by comparing transverse-sections of leaf-blades of both the type specimen and a recently collected fertile specimen. It is related to C. jeminicus Rottb. and C. celans Kukkonen, all three species having glabrous roots without rhizosheaths and belonging to the sect. Arenarii (Kunth) Jaub. & Spach of Cyperus.
Romo, A., Peris, J. B. & Stübing, G. 1996: The genus Pinguicula (Lentibulariaceae) in Morocco. — Ann. Bot. Fennici 33: 29–32.
In Morocco the genus Pinguicula L. (Lentibulariaceae) is represented by two species: P. lusitanica L. and P. fontiqueriana Romo, Peris & Stübing sp. nov. The previous reports of P. vulgaris L. and P. corsica Bernard & Gren. from Morocco were based on misidentified specimens. A key to all four species is provided and P. fontiqueriana is illustrated in line drawings.
Balagurova, N., Drozdov, S. & Grabovik, S. 1996: Cold and heat resistance of five species of Sphagnum. — Ann. Bot. Fennici 33: 33–37.
Differences in the resistance of the chlorophyll-containing cells of the branch leaves of five species of the genus Sphagnum L. were revealed by direct freezing and heating. Sphagnum balticum (Russ.) C. Jens., S. subsecundum Nees and S. teres (Schimp.) Ångstr. were shown to be more frost-resistant than S. magellanicum Brid. and S. fuscum (Schimp.) Klinggr. Differences in heat resistance between the mosses studied were smaller than those in cold resistance. However, there was correlation between the two responses. The thermo-resistance of Sphagnum mosses was shown to be strongly affected by environmental conditions.
Enroth, J. 1996: Amendments to Australasian Cryphaea (Cryphaeaceae, Bryopsida). — Ann. Bot. Fennici 33: 39–44.
In Australasia the genus Cryphaea Mohr (Cryphaeaceae, Bryopsida) is represented by five species: C. ovalifolia (C. Müll.) Jaeg., C. chlorophyllosa C. Müll., C. tenella (Schwaegr.) Hornsch. ex C. Müll., C. acuminata Hook. f. & Wils. and C. parvula Mitt. Cryphaea tenella is the correct name of the taxon that has been called C. exannulata Dix. & Sainsb., and the material that has been called C. tenella represents two species: C. acuminata and C. parvula. Bryobartlettia costata Buck, previously synonymized with C. tenella, is a taxonomic synonym of C. acuminata. Cryphaea consimilis Mont. is reinstated as a species distinct from C. tenella and excluded from the Australasian flora. Lectotypes are designated for C. acuminata, C. exannulata and C. parvula. Cryphaea parvula and C. acuminata are illustrated and compared in line drawings. A key to the Australasian species is given. Three species occur in Australia and all five in New Zealand.
Piippo, S. 1996: Notes on Chinese Geocalycaceae (Hepaticae). 1. — Ann. Bot. Fennici 33: 45–49.
The distinguishing characters of Heteroscyphus planus (Mitt.) Schiffn. and H. tener (Steph.) Schiffn. are discussed. Both species are illustrated and range extensions in China are given. Lophocolea magniperianthia Horik. is synonymized with Chiloscyphus costatus (Nees) Engel & Schust.
He, X.-L. 1996: Type studies on Pycnolejeunea (Lejeuneaceae, Hepaticae), II. — Ann. Bot. Fennici 33: 51–58.
Pycnolejeunea decurviloba Steph. and P. valenciae Gott. ex Steph. are transferred to Cheilolejeunea (Spruce) Schiffn. Complete descriptions and illustrations are provided.
He, X.-L. 1996: Type studies on Pycnolejeunea (Lejeuneaceae, Hepaticae), III. Two Asiatic species described by Hoffmann. — Ann. Bot. Fennici 33: 59–64.
Pycnolejeunea malaccensis Hoffm. and P. renneri Hoffm. are transferred to Cheilolejeunea (Spruce) Schiffn. and placed in subgenus Xenolejeunea Schust. section Meyenianae Thiers. Complete descriptions and illustrations are provided.