Schuette Scott, Folk Ryan A, Cantley Jason T, Martine Christopher T
Pennsylvania Natural Heritage Program, Western Pennsylvania Conservancy, 800 Waterfront Drive, Pittsburgh, PA 15222, USA.
Florida Museum of Natural History, Dickinson Hall, University of Florida, Gainesville, FL 32611, USA.
PhytoKeys. 2018 Apr 17(96):87-97. doi: 10.3897/phytokeys.96.23667. eCollection 2018.
The genus is recognized as one of the most diverse endemic radiations of Saxifragaceae in North America, yet species delimitation and geographic distribution within the group remain controversial. Many species remain difficult to identify, including , a narrow Appalachian endemic and globally imperiled (G2) taxon recorded only from West Virginia and Virginia that occurs in sympatry with and . A recent survey of the cliffside flora of the Shikellamy Bluffs, PA recorded dozens of individuals that, through the use of social media, were positively identified as . Aided by examination of historical herbarium records, subsequent searches of similar habitats in Pennsylvania led to the discovery of seven more populations and established a significant range expansion for this rare species. The uncovering of in Pennsylvania is an exciting conservation outcome and an example of what can happen when botanists embrace a combination of modern and classical approaches to discovery and collaboration.
该属被认为是北美虎耳草科中最多样化的地方特有辐射类群之一，但该类群内的物种界定和地理分布仍存在争议。许多物种仍难以鉴定，包括[具体物种名称1]，一种狭窄的阿巴拉契亚特有种且全球濒危（G2）分类群，仅在西弗吉尼亚州和弗吉尼亚州有记录，与[具体物种名称2]和[具体物种名称3]同域分布。最近对宾夕法尼亚州希凯拉米悬崖边植物区系的一项调查记录了数十株[具体物种名称1]个体，通过社交媒体的使用，这些个体被明确鉴定为[具体物种名称1]。在对历史标本馆记录进行检查的帮助下，随后在宾夕法尼亚州对类似栖息地的搜索发现了另外七个种群，并为这种稀有物种确定了显著的分布范围扩展。在宾夕法尼亚州发现[具体物种名称1]是一个令人兴奋的保护成果，也是植物学家采用现代与经典发现及合作方法相结合时可能发生的情况的一个例子。
