采自甘肃白龙江流域中国茶渍属地衣的三个新记录种

在对甘肃白龙江流域的茶渍属(Lecanora)地衣进行调查采集和鉴定的基础上,报道三个中国新记录种:暗灰茶渍(L.cinereofusca H.Magn),暗黄茶渍(L.flavidofusca Mll.Arg.)和颗粒茶渍(L.perplexa Brodo)。对每种给出了详尽的形态、解剖和化学特征描述,并提供了每种的外部形态照片。     

中国茶渍属地衣3个新记录种北大核心CSCD

文章报道中国茶渍属地衣3个新记录种——亚异茶渍(Lecanora subravida Nyl.)、栎生茶渍(L.quercicola Coppins&P.James)和针叶茶渍(L.coniferarum Printzen),该3个物种均隶属于柳茶渍组(Lecanora saligna group)。该类群主要特征为,朽木生,地衣体龟裂状至疣状或完全不明显,子囊盘黄绿色至棕色或颜色多样,表面具轻微粉霜,主要化学次生代谢产物为松萝酸。本研究使用贝叶斯分析(BI)构建了基于2个基因位点(nrITS,mtSSU)系统发育树,分析了该3种在茶渍属中的进化位置。本研究还对每个种详细描述形态-解剖特征、分布及栖息地等情况,并提供了地衣体、子囊盘及子囊孢子的彩色图片。     

中国新疆天山中东部新记录地衣种类(英文)

文中对采自乌鲁木齐市郊区和南山小渠子多个生境中的大量标本进行了外部形态与内部解剖特征观察,并对少数标本采用了显色反应法(CT)、显微化学结晶法(MCT)及薄层色谱法(TLC)等方法进行了物种鉴定。结果表明:该地区分布的地衣种类有100多种,其中包括1个中国新记录种———副茶渍属(Lecania tonin-ioides),2个新疆新记录种———美国大孢蜈蚣衣(Physconia americana)和细裂岛衣(Cetraria delisei)。副茶渍属的主要特征是鳞状地衣体边缘粉色,子囊长棍棒状,常生长在地面上;美国大孢蜈蚣衣的主要特征是小裂片旺生在子囊盘边缘和地衣体成熟的部分;细裂岛衣的主要特征是子囊棍棒状,髓层C+粉红色,含三苔色酸。文中对这些种类进行了简略描述。     

中国茶渍属和石蕊属4新记录种

通过形态学及化学研究,结合nrDNA ITS序列的系统发育分析,该文报道了茶渍属(Lecanora Ach.)和石蕊属(Cladonia P. Browne)地衣4中国新记录种：莱氏茶渍(Lecanora layana Lendemer)、白头山茶渍(L. baekdudaeganensis B. G. Lee&Hur)、伪银茶渍(L. pseudargentata Lumbsch)和草皮石蕊[Cladonia caespiticia (Pers.) P. Gaertn., B. Mey&Scherb.]。该文对这些物种的分类学特征进行了详细描述,并与相似种进行了对比,同时提供了各种的地理分布图和形态图。这为中国茶渍属和石蕊属地衣物种多样性及资源利用提供了基础资料。     

中国新记录属——裂片茶渍衣属及一个中国新记录种

对中国新记录属裂片茶渍衣属（Lobothallia （Clauzade＆Cl.Roux） Hafellner）、中国新记录种粉盘裂片茶渍（Lobothallia alphoplaca （Wahlenb.） Hafellner）进行了详细的描述。裂片茶渍衣属地衣体裂片状、龟裂状和鳞片状,被粉芽;子囊盘集中于中部,茶渍型。描述了粉盘裂片茶渍的形态、化学特征和生境,并提供了相关彩色图片。     

新疆阿尔泰山南麓平茶渍属地衣3个中国新记录种

平茶渍属(Aspicilia)是地衣型真菌的重要类群之一。该类真菌在干旱、半干旱地区尤为丰富,因此在地处半干旱区的新疆,其分布也极其多样。该研究对采自新疆阿尔泰山南麓可可托海风景区的平茶渍属地衣标本,从形态解剖、化学显色反应及薄层层析法和生境等多个角度进行了综合分析,发现中国新记录种3个,分别为博伊金平茶渍(Aspicilia boykinii)、烟色平茶渍(A.fumosa)和斯氏平茶渍(A.sipeana)。提供了这3个新记录种的外部宏观形态和内部解剖结构彩色图。     

中国泡状微孢衣及相关种类的初步研究

采用传统分类学及分子生物学技术,鉴定并报道了采自中国甘肃、新疆、西藏的微孢衣属中国新记录种——泡状微孢衣(Acarospora bullata Anzi),并对该属部分种类[节微孢衣(A. nodulosa (Dufour) Hue)、垫微孢衣(A. pulvinata H. Magn.)]进行了分类及系统发育学研究,提供了这3个物种的详细描述、形态结构图以及ITS序列。本研究可为《中国地衣志——微孢衣科》的编写提供科学数据。     

中国砖孢发属地衣研究

简短回顾了砖孢发属地衣研究概况。在已知的8种亚洲砖孢发属地衣中,中国有七种,其中两种为台湾特有。根据150余份标本的形态与化学特征,承认中国大陆砖孢发属地衣5种,指出了个别异名,发现亚洲砖孢发(Okpogon asiaticus)存在两个化学型,提供了中国5种砖孢发地衣分布的新资料。研究结果表明,5种砖孢发地衣集中分布于我国云南、四川和西藏东部。作者认为中国西南地区是砖孢发属地衣在亚洲的一个分布中心。     

裂片茶渍衣属一新记录种——辐射裂片茶渍

对中国地衣新记录种辐射裂片茶渍Lobothallia radiosa(Hoffm.)Hafellner (Megasporaceae)的形态特征、解剖结构、化学特征和生境进行了描述和研究,并提供5幅彩色图片和中国裂片茶渍衣属的分种检索表.     

新疆平茶渍属地衣生态分布与地理区系成分分析

根据多年的实地调查资料和前人研究资料,对新疆平茶渍属（Aspicilia）地衣的种类以及它们的分布区、区系特征进行了初步研究。结果表明,分布在新疆的平茶渍属地衣共有33种,主要分布在天山、阿勒泰山、昆仑山和准噶尔盆地。根据它们对环境的适应特征和选择性,将新疆平茶渍属地衣的地理区系划分为广布种、环极北极高山种、环极低北极及北方种、北美东部种、中亚种、中国特有种、分布范围不清楚的种等7种类型。同时把新疆平茶渍属地衣的地理分布区域划分为欧亚森林植物亚区、亚洲荒漠植物亚区、青藏高原亚区等三种分布区域。研究还发现分布在阿勒泰山、天山、昆仑山和准噶尔盆地的平茶渍属主要生长在岩石上面,生长基物比较单一。     

The sorediate, saxicolous species of the Lecanora subfusca group in Europe

The sorediate, saxicolous members of the Lecanora subfusca group, which include L. campestris ssp. dolomitica, L. caesiosora, L. pannonica , and L. umbrosa , although frequently misnamed, can be distinguished morphologically and chemically. Lecanora caesiosora is most variable, with a southerly form having a dark grey, thick thallus, and a more northerly, often shade-loving, morphotype having a very pale, thin thallus. The species are described, and a diagnostic key is presented including some confusable species. Lecanora pannonica and L. neglecta are neotypified.     

LECANORA COMPALLENS AND L. SINUOSA,TWO NEW OVERLOOKED CORTICOLOUS LICHEN SPECIES FROM WESTERN EUROPE

Lecanora compallens and L. sinuosa, two corticolous lichens, are described as species new to science on the basis of numerous collections. Lecanora compallens is a sorediate species, known only as sterile. It is probably common in Western Europe, but overlooked because it is very similar to L. expallens. Chemically, the new species is identical with L. strobilina, of which it may represent a sorediate counterpart. Lecanora sinuosa is a new species similar to L. chlarotera and so far only known from a limited area in the Netherlands and Germany, although it may be overlooked elsewhere. Lecanora sinuosa is very close to L. hybocarpa, with which it shares thepulicaris -type epihymenium inspersed with fine crystals but differs markedly by its thick thallus and thick and sinuous apothecium margin.     

Two sorediate crustose lichens assigned to Lecanora

Nordin, A., Sundin, R. & Thor, G. 1995. Two sorediate crustose lichens assigned to Lecanora. — Nord. J. Bot. 15: 553–556. Copenhagen. ISSN 0107–055X.
Lecanora viridissima is described and L. navarrensis is reported from Sweden (Dals-land, Sodermanland, Gotland, Oland, Smiland) and Estonia (Laanema, Saarema). The latter species is reported with apothecia from one locality in Sweden. Lecanora viridissima has not been found with apothecia or pycnidia but is placed in Lecanora due to its general habit and the presence of atranorin. It is distinguished by its morphology, chemistry and habitat. Lecanora viridissima has so far only been found on the island of Gotland in Sweden.     

Lichens on lignum in the coastal regions of western Spitsbergen (Svalbard)

Eighteen species of eleven lichen genera were found on driftwood and worked timber deposited on the beaches in the Hornsund and Billefjorden regions (the west coast of Spitsbergen, Svalbard archipelago). Majority of them indicate low substrate specificity in the high arctic regions. Only three species (Caloplaca spitsbergensis, Lecanora mughicola, L. orae-frigidae) are typical for lignum. Most of the taxa are widespread in Svalbard. Species like: Caloplaca holocarpa, C. spitsbergensis, Protothelenella sphinctrinoidella, Rinodina archaea were sporadically reported till now. Lecanora mughicola was not reported from Svalbard up to the present and this is the first record of the species for the region.     

The new species Lecanora bicinctoidea, its position and considerations about phenotypic evolution in the Lecanora rupicola group

A phylogenetic analysis of the Lecanora rupicola group based on combined nITS rDNA and beta-tubulin sequences and a combined dataset of ITS, beta-tubulin and partial sequences of polyketide synthase genes reveals a previously unrecognized species, which here is introduced under the name Lecanora bicinctoidea. The new species is a sister group of the L. swartzii complex (including L. swartzii and L. lojkaeana), which is characterized by eucorticate ascomata, and a morphological diversity that includes also a dwarf-fruticose lineage. The preferential occurrence on vertical to overhanging siliceous rocks corresponds more closely to L. swartzii. A detailed investigation of phenotypic characters reveals that the new species differs from the superficially similar morphospecies L. bicincta in several ways, such as a thallus of comparatively small areoles and broadly sessile ascomata and the development of an amphithecial cortex devoid of algal remnants (i.e. an eucortex). L. bicinctoidea contains methyl 3alpha-hydroxy-4-O-demethylbarbatate, a chemical compound not known from other members of the L. rupicola group. We also discuss the importance of eucortex formation as one of several factors that are involved in the evolution of substrate-detached thallus structures.