ABSTRACT

The Amazon forest is the biggest tropical forest in the world, known to shelter the largest biodiversity of animals, plants and microorganisms worldwide. As to the mycodiversity of this biome, little is known since most of the mycological investigations in Brazil have been in the Atlantic Rainforest. This study presents a description of ten species of Annulohypoxylon (Hypoxylaceae, Ascomycota) from Amazonian forest of Brazil. Annulohypoxylon moriforme, A. purpureonitens, A. stygium and A. truncatum, have already been recorded in this forest, while A. archeri, A. leptascum and A. nitens are reported for the first time here. A. cf. pyriforme may represent a new record from Brazil and Annulohypoxylon sp. may represent a new species. Annulohypoxylon duckei sp. nov. is proposed, based on the fawn colour of the surface when young, ostiolar disc of truncatum-type (0.17–0.25 mm diam.), greenish yellow pigment, and ellipsoid ascospores (8–10 × 3–5 µm). Identification keys, morphological descriptions, and illustrations are presented for all species.

摘要

亚马逊森林是世界上最大的热带森林，众所周知，它遮蔽了全球最大的动物，植物和微生物的生物多样性。至于这个生物群落的多样性，人们所知甚少，因为巴西的大多数真菌学调查都是在大西洋雨林中进行的。这项研究介绍了来自巴西亚马逊森林的十种环丙醛（Hypoxylaceae，Ascomycota）的描述。Annulohypoxylon moriforme，A purpureonitens，A stygium和元宝枫，已经被记录在这片森林，而A. archeri，A leptascum和A.鲷报告首次在这里。A.比照 梨形虫可能代表了巴西和Annulohypoxylon sp。的新记录。可能代表一个新物种。杜鹃花年轮虫。十一月 根据幼时表面的淡黄颜色，提出了截头形的骨小梁盘形（直径为0.17–0.25 mm），淡黄色颜料和椭圆形的子囊孢子（8–10×3–5 µm）。提供了所有物种的识别码，形态描述和插图。