ABSTRACT

Introduction

The moss genus Algaria currently comprises a single species known only from the type locality. During recent bryological surveys of remnant Overberg Renosterveld patches, plants were collected that clearly belong to this genus but differ from the only known species in several critical respects. Here, we describe these as a new species.

Methods

Specimens were rehydrated in the laboratory, dissected, and mounted in Hoyer’s solution or polyvinyl alcohol–glycerine. Observations and measurements were made using standard stereo and compound microscopy. Spore anatomy was further investigated using scanning electron microscopy.

Key results and conclusions

Algaria overbergensis Hedd. & R.H.Zander is described as a new species currently known from only three localities in Overberg Rûens Renosterveld. It is readily distinguished from its only congener (Algaria natalieae Hedd. & R.H.Zander) by its rounder capsule with a domed to conical operculum, epapillose calyptra, much larger spores, and truncate leaves with a narrower border of elongate cells.

中文翻译：

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Algaria overbergensis Hedd。& RHZander，一种来自南非西南开普省 Overberg Rûens 页岩 Renosterveld 系统的新苔藓物种

摘要

介绍

苔藓属阿尔加利亚目前包含一个仅在模式产地已知的物种。在最近对残余的 Overberg Renosterveld 斑块进行的苔藓学调查中，收集到的植物显然属于该属，但在几个关键方面与唯一已知的物种不同。在这里，我们将这些描述为一个新物种。

方法

标本在实验室中被再水化，解剖，并安装在霍耶氏溶液或聚乙烯醇-甘油中。使用标准立体和复合显微镜进行观察和测量。使用扫描电子显微镜进一步研究孢子解剖结构。

主要结果和结论

Algaria overbergensis Hedd。& RHZander 被描述为目前仅在 Overberg Rûens Renosterveld 的三个地方已知的新物种。它很容易与其唯一的同系物 ( Algaria natalieae Hedd. & RHZander) 区分开来，因为它的荚膜更圆，有圆锥形盖、有生小柱、大得多的孢子和截断的叶子，具有较窄的细长细胞边界。