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本文报道采自贵州贵阳花溪和云南思茅的松塔牛肝菌属的两个新种,它们是网盖松塔牛肝菌Strobilomyces areolatus,和黑鳞松塔牛肝菌Strobilomyces atrosquamosus.研究标本保存在中国科学院微生物研究所菌物标本馆（HMAS）。 相似文献
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本文报道采自贵州贵阳花溪和云南思茅的松塔牛肝菌属的两个新种,它们是网盖松塔牛肝菌 Strobilomyces areolatus, 和黑鳞松塔牛肝菌Strobilomyces atrosquamosus. 研究标本保存在中国科学院微生物研究所菌物标本馆（HMAS）。 相似文献
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为了开发利用菌根真菌资源,本文报道了采用锯木屑、棉籽壳为主的培养基,培养美味牛肝菌和乳牛肝菌的菌丝情况,研究获得初步成功,提供研究者参考。 相似文献
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本文报道松塔牛肝菌属四个新种,即:裸皱松塔牛肝菌Strobilomyces gla-bellus Ying sp.nov.,阔裂松塔牛肝菌S.latirimosus Ying sp.nov.,微茸松塔牛肝菌S.subnudus Ying sp.nov.,短绒松塔牛肝菌S.velutinus Ying sp.nov.;及四个中国新记录种,即:柔鳞松塔牛肝菌S.mollis Corner,疣鳞松塔牛肝菌S.nigricans Berk.,锥鳞松塔牛肝菌S.polypyramis Hook.,半裸松塔牛肝菌S.semi-nudus Hongo.松塔牛肝菌属Strobilomyces以其具有变黑的担子果与菌幕、不粘的菌盖上有疣状、绵绒状或刺状鳞片以及黑褐色带明显纹饰的孢子而易于识别。Singer(1945)按孢子纹饰的不同将松塔牛肝菌属分为两个组,其一为具疣、刺和网纹的种类;另一为具纵贯孢子两端的翼状棱纹的种类。对于后者的归属问题,Pegler & Young持不同见解,并于1981建立了非洲牛肝菌属AfroboletusPegler & Young以纳孢子具翼状纵棱和孢缘边(rim)的种类;含2—4种,分布在非洲近赤道的地区。在中国,松塔牛肝菌属已报道过三个种,即:松塔牛肝菌Strobilomyces,floc-copus(Vahl.ex Fr.)Karst.光头松塔牛肝菌S.glabriceps Chiu和混淆松塔牛肝菌S.confusus Sing.。裘维蕃(1948,1957)曾描述过网孢松塔牛肝菌Strobi-lomyces retisporus(Pat.et Bak.)Gilb.但因其子实体色鲜红至褐红而不变黑色、子层体淡暗黄色且菌肉不变红-黑色、孢子具网纹而宜转隶于Heimiellia Boedijn(1951)。文中有新分类单位和国内已知种的分种检索表、新种的拉丁文和英文描述并有绘图和扫描电镜照片示明孢子纹饰。 相似文献
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报道了采自内蒙古呼伦贝尔市的中国疣柄牛肝菌属1个新记录种,即假褐疣柄牛肝菌Leccinum pseudoscabrum(Kallenb.)utara.。主要特征为菌肉伤后变红到紫褐色,再到黑褐色,基部菌丝体手触后呈紫褐色;具泡状菌丝,呈栅栏状。比较和讨论了该种与相近种在伤后不同的变色反应及菌丝形态。研究标本存放于吉林农业大学菌物标本馆(HMJAU)。 相似文献
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本文报导作者在广东所采集的乳牛肝菌属 Suillus Micla．Ex S．F．Gray 的13个种,其中胶质乳牛肝菌 Suillus gloeous Bi et T．H．Li 为新种,另外5种为国内新纪录种。 相似文献
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The Boletus edulis species complex includes ectomycorrhizal fungi producing edible mushrooms appreciated worldwide. However, species delineation is very difficult in these fungi, because it is based exclusively on a few, highly variable morphological features. As a consequence, a high number of taxa--including several varieties, subspecies and/or species sensu stricto--have been described in this species complex. In this paper we report on an extensive analysis of internal transcribed spacer of the nuclear rDNA region on a large sample of species of the B. edulis complex, mainly harvested in Italy, and representative of the European variability of this group. The molecular analysis allowed us to discriminate among and within B. edulis, B. aestivalis, B. pinophilus and B. aereus spp. and resolve their phylogenetic relationship. 相似文献
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盖表皮或菌柄表皮具有褐色色素这一特征在乳菇属小红乳菇亚属Lactarius subg.Russularia中较为少见.文中描述了产于中国南部的2个子实体褐色、表皮中具有褐色色素的乳菇新种:暗褐乳菇L.atrofuscus和橄榄褐乳菇L.olivaceofuscus.其中,暗褐乳菇L.atrofuscus的孢子球形,盖表... 相似文献
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对来自黑龙江、安徽和湖北的部分丛赤壳科真菌进行单孢分离和系统分类研究,将形态解剖、培养性状和DNA序列分析等相结合进行研究,发现3个中国新记录种:新大孢新丛赤壳Neonectria neomacrospora、平截乳突赤壳Thelonectria truncata和周刺座霉Volutella ciliata,对它们的宏观和微观特征进行了详细描述及图示。 相似文献
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MARÍA J. CANO OLAF WERNER JUAN GUERRA 《Botanical journal of the Linnean Society. Linnean Society of London》2005,149(3):333-350
Specimens belonging to Tortula subulata complex ( T. inermis , T. mucronifolia and T. subulata ) were analysed using a combination of morphometric methods based on quantitative characters [principal component analysis (PCA), discriminant analysis (DA); 76 samples)] and molecular methods (ITS1 – 5.8S rRNA gene and ITS2; 47 samples) to assess patterns of morphological and molecular differentiation within this complex of taxa. The study shows that four species can be recognized: T. mucronifolia , T. subulata , T. inermis and T. subulata var. angustata with bistratose border, which is elevated to the species rank as T. schimperi nom. nov. The most valuable quantitative characters for identification of these species are the strata number of the marginal laminal cells, the ratio of middle marginal laminal cell width/middle marginal laminal cell length, basal membrane of peristome length, middle laminal cell width and papillae number on the middle laminal cells. The internal transcribed spacer (ITS) data suggest that this group of taxa is not monophyletic, T. mucronifolia being close to Protobryum bryoides (= Tortula protobryoides ). The remaining species seem to be a monophyletic group, T. schimperi being the sister group of the clade composed by T. inermis and T. subulata . T. subulata is considered to be of high morphological variability, for which ITS sequences did not resolve the internal relationships. © 2005 The Linnean Society of London, Botanical Journal of the Linnean Society , 2005, 149 , 333–350. 相似文献
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We studied the morphology and molecular phylogeny of Myoschiston duplicatum, a peritrich ciliate that has been recorded as an epibiont of crustaceans, but which we also identified on marine algae from Korea. The important morphological characteristics revealed by silver staining of Myoschiston species have not been described because they are rarely collected. Using morphological methods, we redescribed the type species of the genus, Myoschiston duplicatum, and provided an improved diagnosis of Myoschiston. In addition, the coding regions for nuclear small subunit (SSU) rRNA and internal transcribed spacer 1‐5.8S‐internal transcribed spacer 2 sequences were sequenced. Phylogenetic analyses that included available SSU rDNA sequences of peritrichs from GenBank strongly supported a position of M. duplicatum within the family Zoothamniidae. In addition, phylogenetic analyses were performed with single datasets (ITS1‐5.8S‐ITS2) and combined datasets (SSU rDNA + ITS1‐5.8S‐ITS2) to explore further the phylogenetic relationship in the family Zoothamniidae between the three morphologically similar genera—Zoothamnium, Myoschiston, and Zoothamnopsis. 相似文献
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A new species of the genus Boletus is reported from Fujian Province: Boletus minimus Zang et N.L.Huang. It is a rather interesting taxon and characterized by its most small size of basidiocarps, pileus 1-4 mm diam., stipes 3-6 mm long only., it can be placed in the genus Boletus section Luridi Fr. 相似文献
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Jose L. Villar M. ngeles Alonso Ana Juan John F. Gaskin Manuel B. Crespo 《植物分类学报：英文版》2019,57(5):488-507
Tamarix is one of the taxonomically most complex genera among the angiosperms, and there is little consensus regarding its infrageneric classification. Here we present the most complete phylogenetic reconstruction of the genus to date. This includes a DNA phylogenetic tree based on nuclear ribosomal ITS, and a plastid DNA phylogeny based on three intergenic spacers (trnS‐trnG, ndhF‐rpl32, and trnQ‐rps16). In total, both nuclear and plastid phylogenetic analyses include more than 70 samples of 39 species from 27 countries, which represent close to 60% of the diversity of the genus. Two complementary trees, based only on one plastid marker, are also included. The first, based on trnS‐trnG, is used to increase the number of species related to T. amplexicaulis. The second, based on ndhF‐rpl32, is used to investigate the separation between T. tetrandra and T. parviflora. The incongruence between the available infrageneric classifications and the molecular results is confirmed. A reticulate evolution is inferred from the trees, showing characters such as vaginate leaves appearing at different stages along the evolutionary history of the genus. The presence of T. canariensis outside the Canary Islands is cast into doubt, and all such records from NW Africa and Europe are here considered to belong to T. gallica. The results also suggest independence of T. karelinii from T. hispida, and T. parviflora from T. tetrandra. Relationships between a number of species are still not resolved, and additional studies will be needed to further refine the complex taxonomy of Tamarix. 相似文献
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The systematics ofScleromitrula andVerpatinia of the family Sclerotiniaceae is reevaluated on the basis of morphological, cultural and molecular criteria.Scleromitrula shiraiana, Verpatinia species andCiborinia candolleana share gross morphological, microanatomical and cultural features which clearly distinguish them from the closely relatedCiborinia andRutstroemia species. Phylogenetic analyses of sequences from the internal transcribed spacer region (ITS1, ITS2, and the 5.8S gene) of nuclear ribosomal DNA demonstrate that the stipitate-capitate specimens ofScleromitrula andVerpatinia species plus the stipitate-cupulateCiborinia candolleana constitute a monophyletic clade separate from a clade including the type species ofCiborinia. Scleromitrula is emended to includeS. shiraiana, the new speciesS. rubicola, C. candolleana, and specimens formerly assigned toVerpatinia. A key to the accepted species ofScleromitrula is provided. 相似文献