Peseckienė A., 1995: Localization of water-soluble polysaccaharides
in the indigenous and introduced plant species of Lithuania. Botanica
Lithuanica, 1: 719.
Localization of mucilage cells and mucilage indications in the Lithuanian
angiosperms was studied with the purpose of estimating their diagnostic
significance. 313 species belonging to 75 families were investigated. Mucilages
were not found in plants of 86 investigated species. The mucilage indications
were observed in the more primitive species of Magnoliopsida and Liliopsida.
The mucilage cells were observed in the more developed taxa of Magnoliopsida.
The investigations of genus Viola have shown that the amount of mucilage
cells is related to the ecological conditions of the plant habitat.
Keywords: water soluble polysaccharides, mucilage cells, mucilage
indications, Magnoliopsida, Lithuania.
Gudžinskas Z., Sinkevičienė Z., 1995: Distribution, biology and naturalization
of Impatiens glandulifera Royle (Balsaminaceae) in Lithuania. Botanica
Lithuanica, 1: 2133.
Distribution of Impatiens glandulifera in Lithuania is analysed. This
cultivated and recently naturalized species is more frequent in the southern
and eastern parts of the territory. Notes on biology of I. Glandulifera
are presented. Communiteis in which this species is naturalized are described.
Keywords: Impatiens glandulifera, distribution, biology, naturalization,
phytocenoses with Impatiens glandulifera, Lithuania.
Kostkevičienė J., 1995: Studies of phytoplankton in the streams of
the river Merkys basin. Botanica Lithuanica, 1: 3547.
The phytoplankton of the river Merkys basin (South East of Lithuania)
was investigation in 19761994. Totally 148 algae species and 14 varieties
were recorded in the investigated streams. The diatoms (Bacillariophycaea)
and green algae (Chlorophyceae) dominated in the studied phytoplankton,
respectively they comprised 52 % and 29 % of the recorded taxa. The number
of true planttonic diatoms were rather small: most of the suspended algae
were tychoplanktonic. The green algae were dominated by small planktonic
Chlorococcales.
Variations in seasonal succesion were closely related to the stream
order. In the first and second order stream diatoms were dominant during
the year. In the third and fourth order streams a typical alteration of
diatoms (spring, autumn) and green algae (summer) occerred.
Keywords: phytoplankton, species composition, seasonal succesion,
streams.
Šlapkauskaitė G., Jankavičiūtė G., 1995: Ecological role of group
B vitamins in the succesion of phytoplankton. 1. investigations on the
succesion of late summer phytoplankton and structure of vitamins under
experimentally modulated different trophic conditions. Botanica Lithuanica,
1: 4977.
The research tests of late summer phytoplankton regarding their seasonal
succesion were conducted using experimental models with water of different
eutrophic conditions. This allowed to carry out an evaluation of the following
changes during the succesion: composition of algae, percentage abundance
of algae, biomass of phytoplankton, photosynthesis and respiration of phytoplankton,
amount of saprophytic bacteria, dynamic of group B vitamins both in water
and phytoplankton biomass. Changes of phytoplanktocenosis coincided mainly
with changes in the content of group B vitamins in water.
Due to a large amount of available research data, this paper is divided
into several parts to analyze the test results of the succesion of late
summer and spring phytoplankton, and the influence of different vitamins
on the succesion of phytoplankton.
Keywords: succesion of phytoplankton, vitamins in succesion
of phytoplankton.
Lapinskienė N. M., 1995: Impact of meteorological factors on bioproductivity
dynamics of cultured meadow communities under different soil hydrological
conditions. Botanica Lithuanica, 1: 7993.
Investigations on dynamics of the biological productivity of 17 year
old cultured meadow communities are presented. The experiments were carried
out in the Davila ecological landscape station (Utena region, East Lithuania)
in a drained cultivated lowtype peat-bog on diverse humidity terraces along
the pond. On the basis of the binomial correlation data analysis meadow
bioproductivity dependence upon meteorological factors, biological characteristics
of grass species and changes of specific composition was determined.
Keywords: cultural meadow, bioproductivity, aboveground phytomass,
underground phytomass, dynamics, binomial correlation, meteorological factors.
Motiejūnaitė J., 1995: Genus Fellhanera in Lithuania. Botanica
Lithuanica, 1: 9597.
Two species of the genus Fellhanera Vezda are reported as new to Lithuania:
F. bouteillei (Desm.) Vezda and F. subtilis (Vezda) Diederich & Sérus.
Both species were collected from Vaccinium myrtillus stems, F. subtilis
from twigs and needles of Picea abies in addition, in humid old Picea
abies and P. abies Pinus sylvestris stands. Lichen species associated
with F. subtilis were: Hypogymnia physodes (L.) Nyl., H. tubulosa (Schaer.)
Hav., Cetraria chlorophylla (Willd.) Vain. on Picea abies twigs and needles,
Dimerella pineti (Ach.) Vezda, Bacidia chloroticula (Nyl.) A. L. Sm. on
Vaccinium myrtillus. The latter lichen species is reported for the first
time for Lithuania as well.
Keywords: Foliicolous lichens, Fellhanera, Bacidia chloroticula,
Lithuania.
Jukonienė I., 1995: The first locality of Plagiothesium undulatum
(Hedw.) Schimp. in Lithuania. Botanica Lithuanica, 1: 98101.
The first locality of Plagiothesium undulatum (Hedw.) Schimp. in Lithuania
is desrcibed. This oceanic species was found in the forest Šiurinė (Tauragė
district) in Picea abies forest. The Lithuanian locality of P. undulatum
gives an additional information about this species range and anables the
correction of its boundaries.
Keywords: mosses, Plagiothesium undulatum, Lithuania, geographical
range.
Gudžinskas Z., 1995: Knygos "Lietuvoje auginamų ir augintinų spygliuočių
medžių ir krūmų vardynas" recenzija. Botanica Lithuanica, 1: 103108.
Urbonas V., 1995: Many-volumed edition "Fungi of Lithuania". Botanica
Lithuanica, 1: 109111.
Ignatavičiūtė M., Stanevičienė S., 1995: Anniversary of Professor Antanas
Minkevičius the patriach of the Lithuanian botany. Botanica Lithuanica,
1: 113128.
Motiekaitytė V., Rukšėnienė J., 1995: Brief review of studies publicated
by Marija Natkevičaitė-Ivanauskienė (dedicated to the 90th anniversary
of the birth). Botanica Lithuanica, 1: 118128.
Labokas J., 1995: The second meeting of Focal points for documentation
in Easter European genebanks. Botanica Lithuanica, 1: 129130.
Kutorga E., 1995: XII Europos mikologų kongresas. Botanica Lithuanica,
1: 131132. |