Support of the Diatom Herbarium of The Academy of Natural Sciences of Philadelphia

费城自然科学院的硅藻标本馆包含超过11万张已编目的标本幻灯片，22.4万件未编目的批次，4500个模式标本的卡片档案，6万个地点，16万个分类单元出现，5.1万个书目引用和20万个未处理的样本，使其成为西半球同类标本中最大的收藏。负责标本馆的爱德华·塞里奥特博士计划继续改进标本的物理保存，特别是模式标本，用于纯研究和应用研究。硅藻是一类多样性的浮游植物，被广泛用作环境指标，是许多生物地层学和进化研究的对象。化石和现代硅藻的系统收集对这项研究至关重要，费城的硅藻标本馆是世界上最重要的同类收集之一。未来对全球气候变化、进化过程和环境质量的研究将依赖于像这样的系统收集的持续增长和改进。

The Diatom Herbarium of the Academy of Natural Sciences, Philadelphia contains more than 110,000 catalogued specimen slides, 224,000 uncatalogued lots, card files for 4,500 type specimens, 60,000 localities, 160,000 taxon occurrences, 51,000 bibliographic citations, and 200,000 unprocessed samples, making it the largest collection of its type in the western hemisphere. Dr. Edward Theriot, Curator in charge of the Herbarium, plans continued improvement in the physical preservation of specimens, especially type specimens, for use in pure and applied research. Diatoms are a diverse group of phytoplankton that are widely used as environmental indicators, and are the subjects on many biostratigraphic and evolutionary studies. Systematic collections of fossil and modern diatoms are essential to this research, and the Diatom Herbarium in Philadelphia is one of the world's most important collections of its type. Future research on global climate change, evolutionary processes, and environmental quality will rely on the continued growth and improvement of systematic collections such as this.