Biology

Bely P., 2012: Absconditella lignicola (Stictidaceae) -lichen species new to Belarus [Absconditella lignicola (Stictidaceae) -nauja kerpių rūšis Baltarusijoje]. -Bot. Lith., 18(2): 164-165. Absconditella lignicola Vězda et Pišút is reported for the first time in Belarus. It was recorded in one locality, growing on decaying pinewood on the opencast peatland in Brest region, the south of Belarus.

Two hundred and ten specimens of Cetrelia collected in Belarus in 1954–2012 were examined based on morp- hological and chemical characters. Three closely related species of Cetrelia (C. cetrarioides, C. monachorum  and C. olivetorum) were identifed in this study. The ecological notes and distribution maps of the detected  species in Belarus were provided and their conservation status was discussed.

Bely P., 2016: New data on distribution and ecology of lichen Parmotrema stuppeum (Parmeliaceae, lichenized Ascomycota) in Belarus [Nauji duomenys apie kerpės Parmotrema stuppeum (Parmeliaceae, lichenized Asco-mycota) paplitimą ir ekologiją Baltarusijoje]. – Bot. Lith., 22(1): 93–95. The paper presents information about new localities of Parmotrema stuppeum, rare foliose lichen in Belarus. Both earlier known and new localities of the species are discussed. New data on the ecology of P. stuppeum in Belarus are provided.

Based on an examination of 360 herbarium specimens of the genus Lepraria, this study deals with their morphology, secondary chemistry, habitat requirements and distribution in Belarus. Nine taxa have been accepted, of which L. ecorticata, L. fnkii and L. rigidula are new to the country. L. incana appears to be the commonest species in the country (48% of the studied specimens).

The genus of Lepraria Ach., (Stereocaulaceae Chevall.) includes c. 60 widely distributed species. To date there is no data about the true species diversity within the genus of Lepraria in Belarus, and there is no key for their determination. The main aim of the present study is to prepare a key to the identification of species of Lepraria genus occurring in Belarus. Findings and their discussion. Three hundred and sixty lichen specimens of Lepraria were examined based on morphological and chemical characters. Nine species of Lepraria have been identified. Lepraria incana (L.

In the territory of NP the Białowieża Forest no special research on specific structure of lichens of the Cetrelia has been carried out, and there are only single instructions in publications (GolubkoV 1986, 1987 and others) whose definitions are based on morphological characteristics and results of colour chemical reactions which are not always reliable. Three taxa of Cetrelia (C. cetrarioides, C. monachorum, C. olivetorum) have been identified in a study of the genus in Belarussian part of the Białowieża Forest. Cetrelia monacho rum is the commonest member of the genus in the Białowieża Forest (46 records), whereas C. olivetorum is known from 35 localities. Cetrelia cetrarioides appears to be the rarest species of the genus in the Białowieża Forest (2 records). The distribution and status of three species in the Białowieża Forest are reviewed, distribution maps are provided, and the merits of the segregates for conservation measures are discussed.

Two hundred six specimens of Xanthoparmelia collected in Belarus in 1905–2017 were examined based on morphological and chemical characters. Six species (X. angustiphylla, X. conspersa, X. delisei, X. loxodes, X. pulla and X. verruculifera) were identified in this study. Xanthoparmelia angustiphylla and X. delisei are reported for Belarus for the first time. Presence of Xanthoparmelia pokornyi and X. stenophylla has not been confirmed, and therefore these species should be excluded from the Belarusian list of lichens. A key to the species of Xanthoparmelia in Belarus is provided.

2020. № 3 (35) 85 УДК 582.29(476) А. Г. Цуриков П. Н. Белый Распространение разновидностей лишайника Pseudevernia furfuracea (Parmeliaceae) в Беларуси 256 коллекционных образцов лишайника Pseudevernia furfuracea, собранных различными авторами на территории Республики Беларусь в период 1970-1975 и 2005-2017 гг. и хранящихся в гербариях Минска (MSKH) и Гомеля (GSU), были исследованы методом тонкослойной хроматографии. Установлено, что 94,9% проанализированного материала относится к разновидности P. furfuracea var. furfuracea, 5,1% -к разновидности P. furfuracea var. ceratea. Для двух разновидностей отмечена различная экологическая приуроченность и субстратная селективность. Ключевые слова: экология, хемотип, химическая вариация, вторичные метаболиты, ресурсный запас. Род Pseudevernia Zopf включает широко распространенные лишайники ортотропной листоватой повисающей биоморфологической структуры и насчитывает 5 видов в мировой биоте [16], из которых в Европе распространен лишь один -Pseudevernia furfuracea (L.) Zopf. Согласно [9; 12; 13; 16], вид включает две разновидности, идентичные морфологически, но отличающиеся по составу вторичных метаболитов сердцевины и экологией. Pseudevernia furfuracea var. furfuracea содержит физодовую кислоту в качестве основного метаболита и является более «термофильной» [12] разновидностью, распространенной повсеместно в Европе и на севере Африки. Pseudevernia furfuracea var. ceratea (Ach.) D. Hawksw. содержит оливеторовую кислоту в качестве основного метаболита и более всего встречается в северной части ареала вида. В странах южной Европы и на севере Африки эта разновидность преимущественно встречается в горных районах, являясь здесь достаточно редкой [6-9; 12]. Лихенобиота Республики Беларусь в настоящее время насчитывает 606 видов лишайников [17], однако ее нельзя назвать досконально изученной. Проведенные ревизии гербарных образцов некоторых таксономических групп лишайников (роды Cetrelia, Hypotrachyna, Lepraria, Parmelia, Parmotrema, Punctelia, Xanthoparmelia, группа Cladonia chlorophaea-pyxidata) показали неполноту наших знаний как о видовом разнообразии этих таксонов, так и о встречаемости и экологии отдельных видов [5; 18-22]. Изучение особенностей распространения и химического состава лишайника Pseudevernia furfuracea на территории Беларуси ранее не проводилось. Являясь источником биологически активных веществ и важным сырьем для парфюмерной промышленности, данный лишайник имеет высокую ресурсную значимость [10]. В связи с вышеизложенным представляется актуальным провести ревизию имеющегося гербарного материала Pseudevernia furfuracea, собранного на территории Беларуси, с целью выявления как особенностей химического состава, так и экологических закономерностей встречаемости в современных климатических условиях. Материалом для изучения явились 256 коллекционных образцов лишайника Pseudevernia furfuracea, хранящихся в Научном гербарии Белорусского Полесья кафедры ботаники и физиологии Гомельского государственного университета имени Франциска Скорины (GSU) и Центрального ботанического сада НАН Беларуси (MSKH). Морфоло-

Molecular analyses of the recently described Xanthoria polessica collected fromthe type locality and of the Australian species X. coomae were used to determine whether these taxa are distinct species or fall within the wide phenotypic variation of the wellknown and cosmopolitan X. parietina. Our results clearly indicate that both taxa should be considered as synonyms of X. parietina since the infraspecific morphological range is accommodated by the observed variation in the thallus and lobe size, their color, position of apothecia, the shape of ascospores, and width of ascospore septum.

Bely P., 2012: Absconditella lignicola (Stictidaceae) - lichen species new to Belarus [Absconditella lignicola (Stictidaceae) - nauja kerpių rūšis Baltarusijoje]. - Bot. Lith., 18(2): 164-165. Absconditella lignicola Vězda et Pišút is reported for the first time in Belarus. It was recorded in one locality, growing on decaying pinewood on the opencast peatland in Brest region, the south of Belarus.

Two hundred and ten specimens of Cetrelia collected in Belarus in 1954-2012 were examined based on morphological and chemical characters. Three closely related species of Cetrelia (C. cetrarioides, C. monachorum and C. olivetorum) were identified in this study. The ecological notes and distribution maps of the detected species in Belarus were provided and their conservation status was discussed.

Based on an examination of 360 herbarium specimens of the genus Lepraria, this study deals with their morphology, secondary chemistry, habitat requirements and distribution in Belarus. Nine taxa have been accepted, of which L. ecorticata, L. finkii and L. rigidula are new to the country. L. incana appears to be the commonest species in the country (48% of the studied specimens).

The results of a comparative study of the influence of mineral and organic fertilizers - N16P16K16, Nanoplant, Hydrohumate, and Ecosil - on the state of the antioxidant complex of early-ripening (Northcountry, Croaton) and mid-ripening (Bluecrop, Northland) varieties of tall blueberries in an experimental culture on a low-lying peat bog in the Central agroclimatic zone of Belarus are presented. A significant dependence of changes in the level of their antioxidant and enzymatic activity on the type of fertilizers and the genotype of plants is shown. In most varieties, the increase in mineral nutrition contributed to an increase in the antioxidant activity level up to 28 %, the most significant when using Nanoplant and Hydrogumate. Revealed a distinct antagonism in changing the activity of peroxidase and catalase, on the one hand, and polyphenol oxidase, on the other: it increases synchronously in the first pair of enzymes to 77 and 30 % in varieties Northcountry, 171 and 152 % in the...