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Die Publikation beschreibt Zwergstrauch-Heiden in Gebirgslagen der Tschechischen Republik, basierend auf 96 eigenen Vegetationsaufnahmen. Syntaxonomie und Standort der Gesellschaften werden diskutiert. Das Hieracium alpinum-Calluna vulgaris-Coenon wächst bevorzugt auf Primärstandorten in den Hochlagen des Riesengebirges und zeichnet sich durch zahlreiche arktisch-alpine und hochmontane Arten aus. Es wird als windexponierte Zwergstrauch-Heide in den Verband Loiseleurio-Vaccinion (Loiseleurio-Vaccinietea) klassifiziert. Die anderen Gesellschaften, Arnico-Callunetum, Vaccinio-Callunetum, Aulacomnium palustre-Vaccinium uliginosum-Coenon und Oxycocco-Callunetum sind zumeist Ersatzgesellschaften und gehören zum Verband Vaccinion myrtilli (Calluno-Ulicetea). Charakteristisch für das Arnico-Callunetum ist das Vorkommen von Nardetalia-Arten. Die Asssoziation hat sich vermutlich durch Einstellung der Beweidung aus Rasengesellschaften entwickelt. Das Vaccinio-Callunetum besiedelt unterschiedliche Standorte wie z.B. Blockschuttfelder und Wegböschungen. Erstere werden häufig von Vaccinium-Arten dominiert, letztere von Calluna vulgaris. Das Aulacomnium palustre-Vaccinium uliginosum-Coenon wächst auf von Stau- oder Hangwasser beeinflußten Böden im Böhmerwald und Riesengebirge. Das Oxycocco-Callunetum zeichnet sich durch das Vorkommen von Oxycocco-Sphagnetea-Arten aus. Es besiedelt Torfflächen in entwässerten Moorbereichen im Böhmerwald und Erzgebirge.
The Chocó region in Colombia is one of the wettest rainforests regions in the world. Isolated for about 3 million years, it is known for its high rate of endemism in flowering plants, ferns, birds and butterflies. Bryophytes (mosses and liverworts) of this region, however, were very unsufficiently known. For this reason, a first survey of the bryoflora of the Chocó region was made in 1992 along a transect from sea level to 1800 m elevation. Apparently because of the high precipitation with up to 12 m annual rainfall, terrestrial species were found growing on bark or corticolous species on leaves. The cover of epiphytic bryophytes is higher than elsewhere, especially in the lowland forest which shows usually a low bryophyte cover. The percentage of mosses compared with that of liverworts is much lower than elsewhere. Mosses form only about 10% of the bryophyte cover in contrast to 40-50% in the according elevation in other rain forest regions.
The status of endemic liverworts in the Western Ghats ‘one of the major Hot spots’ of plant biodiversity have been discussed in the present paper. The study is based on the evaluation of type and authentic specimens available in Lucknow University Hepatic Herbarium (LWU) as well as those in several international herbaria including NICH, NY, JE, FH, G and excicatae of the world and published data. An overall assessment and evaluation revealed the presence of a total of 54 liverworts endemic to Western Ghats in India. The paper also discusses those species which were earlier known as endemic to the area but now show an extended range of distribution elsewhere and also the species earlier introduced from Western Ghats but now changed their status.
Der nordwestliche Teutoburger Wald wurde bryofloristisch untersucht. Für das Gebiet können 44 Leber- und 116 Laubmoosarten angegeben werden. Neben der Besprechung besonders hervorzuhebender Sippen werden mögliche Ursachen für das Verschwinden von Arten diskutiert. Es erfolgt weiterhin eine Analyse der Moosflora aus chorologischer Sicht.
An account of 40 species of bryophytes including 24 mosses and 16 liverworts of Kakkavayal Reserve forest in the Western Ghats is provided here. This includes four new records of phytogeographical significance to Kerala viz., Cololejeunea appressa (Evans) Benedix, C. follicola Srivastava & Srivastava, C. udarii Asthana & Srivastava and Pallavicinia himalayensis Schiffn.
The present study deals with the investigation of bryophytic flora of Mukteshwar (Uttarakhand). The present account deals with the study of 38 species belonging to 31 genera of 21 families. The mosses are represented by 21 species of 20 genera and 12 families, while Liverworts are represented by 15 species of 10 genera and 8 families. Hornworts consist of 1 genus and 2 species. The dominant families are Aytoniaceae, Marchantiaceae, Thuidiaceae and Pottiaceae. The dominant genera are Plagiochasma, Targionia, Marchantia, Plagiochila, Atrichum, Thuidium and Pogonatum. Macrothamnium stigmatophyllum has been identified as new to western Himalaya, while Thuidium philiberti Limpr. is new to Uttarakhand.