A synopsis of the genus Arthothelium (Arthoniales) in Tasmania

IF 1.6 4区生物学 Q4 MYCOLOGY

Lichenologist Pub Date : 2021-11-01 DOI:10.1017/S0024282921000402

G. Kantvilas

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引用次数: 1

Abstract

Abstract The genus Arthothelium A. Massal. in Tasmania comprises ten species. Five of these are described as new: A. bacidinum Kantvilas, a saxicolous, littoral species with subglobose apothecia, non-macrocephalic ascospores, 25−40 × 11−19 μm, and containing the pigment Endoaurantiacum-gold which yields a K+ red reaction; A. insolitum Kantvilas, lichenicolous in rainforest and characterized by subglobose apothecia, very large, non-macrocephalic ascospores, 50−80 × 22−40 μm, and containing the pigment Interveniens-brown which reacts K+ olive green; A. macounioides Kantvilas, corticolous in wet forest and characterized by sessile, convex apothecia, macrocephalic ascospores, 29−42 × 11−18 μm, and containing the pigment Endoaurantiacum-gold; A. magenteum Kantvilas, a common wet forest epiphyte with applanate apothecia, non-macrocephalic ascospores, 25−55 × 11−22 μm, and containing a unique maroon-red, K+ pink pigment; and A. subtectum Kantvilas, a saxicolous species with convex apothecia, macrocephalic ascospores, 22−36 × 9−14 μm, and containing Endoaurantiacum-gold. The New Zealand species A. endoaurantiacum Makhija & Patw. and A. suffusum (C. Knight) Müll. Arg., and the Australian A. velatium Müll. Arg. are recorded for Tasmania for the first time. The names A. obtusulum (Nyl.) Müll. Arg., A. pellucidum (C. Knight) Müll. Arg. and A. polycarpum Müll. Arg. are considered synonyms of the widespread A. ampliatum (C. Knight & Mitten) Müll. Arg. Arthothelium ferax Müll. Arg. is a synonym of A. interveniens (Nyl.) Zahlbr. and A. subspectabile Vĕzda & Kantvilas is a synonym of A. suffusum. The sole record of A. macrothecum (Fée) A. Massal. from Tasmania is found to be based on a misidentification. A key to the species is provided. The importance of apothecial pigments, apothecial morphology and ascospore septation is discussed, and three pigments are characterized by their appearance in water and other standard media.

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塔斯马尼亚Arthotheum属（Arthoniales）简介

文章摘要Arthotheum A.Massal属。塔斯马尼亚岛有十个物种。其中五种被描述为新的：A.bacidinum Kantvilas，一种沙管藻属的沿海物种，具有近球形的末端古猿，非大头子囊孢子，25−40×11−19μm，含有产生K+红反应的内金色素；A.不溶性Kantvilas，热带雨林中的地衣，其特征是近球形的apothecia，非常大的非大头子囊孢子，50−80×22−40μm，含有与K+橄榄绿反应的色素Interveniens brown；A.macounioides Kantvilas，产于潮湿的森林中，皮质，特征为无柄、凸的无柄、大头子囊孢子，29−42×11−18μm，含有内金色素；A.magenteum Kantvilas是一种常见的湿林附生植物，具有扁平的顶端古猿，非大头子囊孢子，25−55×11−22μm，含有独特的褐红色、K+粉红色色素；和A.subtactum Kantvilas，一种具有凸顶古猿、大头子囊孢子、22−36×9−14μm的萨克斯管属物种，含有内金。新西兰种A.endoraranticum Makhija和Patw。和A.sufusum（C.Knight）Müll。Arg。，以及澳大利亚的A.velatium Müll。Arg。首次为塔斯马尼亚州记录。名称A.obtusulum（Nyl.）Müll。Arg。，A.透明（C.奈特）Müll。Arg。和A.polycarpum Müll。Arg。被认为是广泛分布的A.ampiatum（C.Knight&Mitten）Müll的同义词。Arg。Arthotheye ferax Müll。Arg。是a.interventiens（Nyl.）Zahlbr的同义词。而A.subspectabile Vĕzda和Kantvilas是A.suffusum的同义词。A.macrothecum（Fée）A.Massal的唯一记录。来自塔斯马尼亚的被发现是基于误认。提供了该物种的钥匙。讨论了顶端色素、顶端形态和子囊孢子分离的重要性，并对这三种色素在水中和其他标准介质中的外观进行了表征。

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来源期刊

Lichenologist 生物-真菌学

CiteScore

2.90

自引率

14.30%

发文量

审稿时长

6.0 months

期刊介绍： The Lichenologist is the premier scientific journal devoted exclusively to the study of lichens worldwide. As the leading forum for the dissemination of new concepts and topical reviews, The Lichenologist reaches more scientists concerned with the study of lichens and lichen symbionts than any other single journal. All aspects of lichenology are considered including systematics and phylogenetics; molecular biology; ultrastructure, anatomy and morphology; secondary chemistry, effects of pollutants and use as bioindicators; biogeography. In addition to standard length research papers, the journal also publishes Short Communications and Book Reviews. A monthly issue may occasionally be devoted to papers deriving from a symposium.