Surprisingly enough, Italy still has some botanically unexplored areas; among these there are some territories between Lazio, Umbria and Abruzzo not included in any protected area. The study area, ranging for 340 ha, includes the mountainous area of Mt. Pozzoni-Mt. Prato-St. Rufo valley, which forms the upper part of the river Velino basin, located in the territory of the municipality of Cittareale (Rieti, Lazio), at an elevation from 1150 to 1903 m a.s.l. The substrate is mainly made of marly limestone of the Meso-Cenozoic Umbria-Marche sedimentary succession. The climate is Temperate and comprises vegetation belts from the montane to sub-alpine. Land cover is dominated by pastures and deciduous forests, with only a few hay meadows. 794 entities have been detected: 16% are considered rare or very rare for the regional territory with several floristic novelties for the regional flora, 6% of the total was found to be endemic to Italy and only eight taxa were aliens. Four taxa are new for the regional flora of Lazio: Arum cylindraceum, Alopecurus pratensis subsp. pratensis, Hieracium bupleuroides and Trinia glauca subsp. glauca. Forest vegetation is represented by beech forests, while dry grasslands are the most widespread vegetation type. The greatest phytocoenotic diversity was found within the secondary pastures. Particularly interesting is the plant community with Iris marsica, which suggests that limestone mountain ledges can represent a primary habitat for this endemic species of the Central Apennine. The presence of several habitats listed in the EU Habitat Directive indicates how the lack of detailed territorial knowledge can lead to the non-designation of conservation sites in areas of high naturalistic value. These findings showed that botanical explorations in territories which are still not known could contribute significantly to the identification of areas of high interest in conserving plant diversity.

中文翻译：

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亚平宁中部植物多样性的未知热点：Mt. Pozzoni-St. 的植物群和植被轮廓。Rufo 山谷 (Cittareale, Rieti)

令人惊讶的是，意大利仍有一些植物未开发的区域。其中，拉齐奥、翁布里亚和阿布鲁佐之间的一些领土没有被列入任何保护区。研究区面积为 340 公顷，包括 Mt. Pozzoni-Mt. 山区。普拉托-圣 Rufo 河谷，形成 Velino 河流域的上部，位于 Cittareale（列蒂，拉齐奥）市境内，海拔 1150 至 1903 米 asl 基底主要由中-新生代翁布里亚-马尔凯沉积序列。气候属温带，包括从山地到亚高山的植被带。土地覆盖以牧场和落叶林为主，只有少数干草草地。已检测到 794 个实体：16% 被认为是区域领土的罕见或非常罕见，区域植物群有几种植物新奇，总数的 6% 被发现是意大利特有的，只有 8 个分类群是外星人。四个分类群是拉齐奥地区植物群的新分类群：Arum cylindraceum、Alopecurus pratensis subsp。pratensis、Hieracium bupleuroides 和 Trinia glauca subsp。格劳卡。森林植被以山毛榉林为代表，干草原是分布最广的植被类型。在次生牧场中发现了最大的植物群落多样性。特别有趣的是 Iris marsica 的植物群落，这表明石灰岩山脊可以代表这种亚平宁中部特有物种的主要栖息地。欧盟栖息地指令中列出的几个栖息地的存在表明，缺乏详细的领土知识如何导致未指定自然价值高的地区的保护区。这些发现表明，在仍然未知的领土上进行植物探索可以大大有助于确定对保护植物多样性具有高度兴趣的区域。