Botanica Lithuanica , Volume 11, Number 1

2005 m.

A field collection of wild raspberry (Rubus idaeus L., Rosaceae) clonal accessions was established in 2001 with the purpose of studying the phenotypic diversity of the species and evaluating the accessions for their useful properties, including growth patterns, fruit yielding peculiarities, and resistance to fungal diseases. Several of the 60 accessions studied were distinguished by retarded vegetative spread, early ripening fruit, and intensive fruiting as well as the production of high fruit yields. The incidence and severity of 3 fungal diseases, spur blight (Didymella applanata (Niessl) Sacc.), anthracnose (Gloeosporium venetum Speg.) and leaf spot (Septoria rubi Westend.), common to cultivated raspberries, were observed and estimated in the collection. In general, the obtained results confirmed the high phenotypic diversity of the species in Lithuania.

Keywords: Rubus idaeus, accession, primocane, fruiting, field collection, fungal disease.

Saxifraga × urbium D. A. Webb and Tiarella cordifolia L. – new alien plant species in Lithuania are described. Both species have spread beyond the areas where they are cultivated. Tiarella cordifolia is a locally naturalized species, whereas Saxifraga × urbium is ascribed to the group of casual species; however, its naturalization is expected.

Keywords: Tiarella cordifolia, Saxifraga × urbium, naturalization, distribution, Lithuania.

A brief account of the distribution, phytoendemism, and possible fossil ancestry of the members of the family Berberidaceae in India is presented. A preliminary checklist of Berberidaceae on the Indian subcontinent has been prepared based on primary observations of different taxa of this taxonomic group in wild habitats and on secondary observations based on examining herbarium specimens. An appraisal of the survival threat and phytoendemism of the Berberidaceae taxa is presented. On the Indian subcontinent (comprising Bangladesh, Bhutan, Myanmar, Nepal, Pakistan, Sri Lanka and India), the family Berberidaceae is moderately represented (49.31 % of the total taxa). For a better understanding of the species dynamics of Berberidaceae on the Indian subcontinent, the present status of endemism has been compared with the data of previous investigations done in the nineteenth century.

Keywords: Berberidaceae, Indian subcontinent, distribution, phytoendemism, threat, fossil ancestry.

Five cyanolichen species were recorded from freshwater aquatic and subaquatic habitats in Lithuania and Belarus: Collema flaccidum, Leptogium lichenoides, L. rivulare, Peltigera polydactylon, and P. praetextata. Their ecology and distribution in the two countries are discussed. Leptogium rivulare has been documented for the first time in Belarus, and L. lichenoides has been reported for the first time in Lithuania.

Keywords: lichens, aquatic habitats, Lithuania, Belarus, red lists, Collema, Leptogium, Peltigera.

Fourteen species of lichens, 8 species and 1 variety of lichenicolous, and 1 species of non-lichenized saprotrophic fungi are reported as new to Lithuania: Arthonia muscigena, Arthrosporum populorum, Bacidia circumspecta, Bacidina assulata, Biatora albohyalina, Chaenothecopsis viridireagens, Cornutispora lichenicola, Cyphelium inquinans, Gyalecta ulmi, Hypocenomyce castaneocinerea, Intralichen lichenum, Leptogium teretiusculum, Lichenosticta alcicornaria, Micarea lithinella, Muellerella hospitans, M. lichenicola, M. pygmaea var. athallina, M. ventosicola, Nephroma parile, Polycoccum superficiale, Rinodina degeliana, Scutula dedicata, Verrucaria aethiobola, V. rheitrophila. Short characteristics of the collected specimens are given as well as notes about species ecology and distribution. Muelleriella lichenicola–M. pygmaea complex in Lithuania is discussed.

Keywords: lichens, lichenicolous fungi, Lithuania.

In 2004 two new diseases of the Rubus species – blight, caused by Leptosphaeria coniothyrium (Fuckel) Sacc. and ascospora dieback caused by Seimatosporium lichenicola (Corda) Shoemaker et E. Müll. were detected. Typical symptoms of these diseases and the morphological characteristics of disease agents are described.

Keywords: Seimatosporium lichenicola, Leptosphaeria coniothyrium, Lithuania.

Erysiphe flexuosa on Aesculus hippocastanum has been reported for the first time in Lithuania. The morphological features of this fungus are described, illustrated, and discussed.

Keywords: Powdery mildews, Aesculus, Lithuania.

This paper deals with 5 species of the genus Massaria recorded in Lithuania. Four of them, M. anomia, M. conspurcata, M. sorbi, M. ulmi, are new to the country. These collections are described and illustrated, with distribution in Lithuania indicated. An identification key is provided.

Keywords: fungi, Ascomycota, Massaria, species, distribution, Lithuania.

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