Archive for Bryology
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139
Scopelophila cataractae, a species on heavy metal rich substrates, was first recorded for Europe in 1967 from Britain and subsequently recorded from many localities contaminated with heavy metal especially around zinc works. It was found in Germany on schist-walls nearby mines from the nineteenth century. This could indicate that the species was present in Europe already prior to 1967 but overlooked. Records even from solid rock nearby mines suggest a status as native species, however, the species had not been observed in the inrtensively floristically studied region before 1870.
128
Die Protonemablätter von Tetraphis pellucida werden beschrieben und illustriert. Sie ähneln Farn-Prothallium und werden in Literatur und Moosflora weitgehend ignoriert. Bruträume wurden erstmals an den Rändern von Protonemablätter beobachtet. Die besser bekannte Präsenz von Protonemablätter der Gattung Tetrodontium zeigt, dass diese Charakteristik wesentlich für Tetraphididae ist.
123
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.
119
Parson’s valley is an area explored for the first time in Indian Bryology; it is situated in Nilgiri hills (Western Ghats). The region is very conducive for the growth of liverworts and it is evident by the present study of recent collections from this area in which 27 taxa (under 12 genera and 5 families) of liverworts have been recorded, of which few are new to Nilgiri hills as well as south India.
134
A preliminary study has been made for Borail Wild Life Sanctuary, Assam, India. A total of 25 species of liverwort (Marchantiophyta) and one species of hornwort (Anthocerotophyta) have been enumerated. Of these, Frullania berthoumieuii is new to India, Caudalejeunea reniloba new to North East India, 13 species new to Assam and 11 species are reported for the first time from Borail WLS. Folioceros paliformis is rediscovered after its type.
137
L’Herbier de Strasbourg rassemble plusieurs dizaines de milliers de spécimens de Bryophytes dont la collection Nees von Esenbeck. A partir du "Lexikon deutschsprachiger Bryologen“ de J.P. Frahm et J. Eggers (2001) la liste de 199 bryologues ayant déposé des spécimens à Strasbourg (STR) est présentée, associée à une courte biographie et à l’origine géographique des récoltes botaniques.
122
Since the existence of Nilgiri hills, bryophyte- the miniatures of plant kingdom play an important and crucial role in the stabilization of Blue Mountains ecology. Unlike Himalayas, the landslides were rare in the area, but with the time and changing global environment it had become a common sight. Significantly ever increasing population and vehicular traffic is the prime reason for them, to cater the need, roads are periodically broadened by cutting road sides destroying the habitat as also the inhabiting species. Bryophytes, are efficient soil binders that regulate the soil moisture and provide substrate for future plant succession. The habitat loss and nudeness of substratum gives impetus to rapid soil erosion that further enhances the problem of their very survival. The present communication provides significance of these avascular cryptogams in environmental assessment, ecological balance and their role in decreasing the pore pressure to check land slides.
151
Since 150 years, the surroundings of Meran in the Etsch valley (Prov. Alto Adige (Südtirol), Italy) are known as an extraordinary place for rare bryophyte species. It is an attraction for bryologists, who collect species, which are found in Europe only in a few places in the southern Alps. The region is especially well known by the fieldwork of Julius Milde, who stayed there 2 years and described some species as new. In spite of the bryological importance of this region, descriptions of this area as well comments on the phytogeographical background seem to lack.
130
Der Teutoburger Wald ist ein 120 km langer NW-SE streichender niedriger Gebirgszug auf der Grenze zwischen Nordrhein-Westfalen und Niedersachsen. Das südöstlich anschließende Eggegebirge ist hier mit eingeschlossen, da es geologisch die Verlängerung bildet und zu demselben Naturraum gehört. Dieser Naturraum besteht aus einer kompletten Abfolge des Mesozoikums (Buntsandstein, Muschelkalk, Keuper, Jura, Kreide), die im Laufe der alpidischen Gebirgsfaltung aufgeschoben worden ist, allerdings dann auch gefaltetet, gestaucht, überschoben und verworfen worden ist.
148
Die Rhön ist ein Vulkangebirge in Mitteldeutschland im Länderdreieck von Thüringen, Hessen und Bayern. Sie ist sehr reich an Moosarten, was an seiner Höhe und den damit verbundenen höheren Niederschlägen und der Vielfalt der Standorte und geologischen Untergrundes liegt. Auf diese Weise vereinigen sich hier hochmontane, alpine und subatlantische, basenliebende und säureliebende Arten. Ausdruck dieses Artenreichtums ist die Moosflora der Milseburg (832m) mit schattigen und sonnigen Phonolithfelsen und Blockhalden, auf der allein Geheeb 222 Laubmoosarten fand.