The recent realistic estimate of fungal numbers which used various algorithms was between 2.2 and 3.8 million. There are nearly 100,000 accepted species of Fungi and fungus-like taxa, which is between 2.6 and 4.5% of the estimated species. Several forums such as Botanica Marina series, Fungal Diversity notes, Fungal Biodiversity Profiles, Fungal Systematics and Evolution—New and Interesting Fungi, Mycosphere notes and Fungal Planet have enhanced the introduction of new taxa and nearly 2000 species have been introduced in these publications in the last decade. The need to define a fungal species more accurately has been recognized, but there is much research needed before this can be better clarified. We address the evidence that is needed to estimate the numbers of fungi and address the various advances that have been made towards its understanding. Some genera are barely known, whereas some plant pathogens comprise numerous species complexes and numbers are steadily increasing. In this paper, we examine ten genera as case studies to establish trends in fungal description and introduce new species in each genus. The genera are the ascomycetes Colletotrichum and Pestalotiopsis (with many species or complexes), Atrocalyx, Dothiora, Lignosphaeria, Okeanomyces, Rhamphoriopsis, Thozetella, Thyrostroma (relatively poorly studied genera) and the basidiomycete genus Lepiota. We provide examples where knowledge is incomplete or lacking and suggest areas needing further research. These include (1) the need to establish what is a species, (2) the need to establish how host-specific fungi are, not in highly disturbed urban areas, but in pristine or relatively undisturbed forests, and (3) the need to establish if species in different continents, islands, countries or regions are different, or if the same fungi occur worldwide? Finally, we conclude whether we are anywhere near to flattening the curve in new species description.

最近使用各种算法对真菌数量的现实估计在2.2到380万之间。大约有100,000种真菌和类真菌分类单元被接受，占估计物种的2.6％至4.5％。诸如Botanica Marina系列，真菌多样性笔记，真菌生物多样性概况，真菌系统学和进化-新的和有趣的真菌，真菌球菌笔记和真菌星球等多个论坛加强了新分类单元的引入，这些出版物中已经引入了近2000种。过去十年。人们已经认识到需要更准确地定义真菌物种，但是在可以更好地阐明这一点之前，需要进行大量研究。我们提供了估计真菌数量所需的证据，并阐述了对其理解的各种进步。一些属几乎是未知的，而一些植物病原体包含许多种复合物，并且数目在稳步增加。在本文中，我们研究了十个属作为案例研究，以建立真菌描述的趋势并在每个属中引入新物种。属是子囊菌炭疽菌和拟盘多毛（与许多物种或复合物），Atrocalyx，Dothiora，Lignosphaeria，Okeanomyces，Rhamphoriopsis，Thozetella，Thyrostroma（相对欠缺研究属）和担子菌属环柄菇。我们提供知识不完整或缺乏的示例，并建议需要进一步研究的领域。其中包括（1）需要确定什么是物种，（2）需要确定寄主特异性真菌的状况，不是在高度动荡的城市地区，而是在原始森林或相对未受干扰的森林中，以及（3）需要确定不同大陆，岛屿，国家或地区的物种是否不同，或者全世界是否存在相同的真菌？最后，我们得出结论，在新物种描述中我们是否接近使曲线变平。