![Sample our Environment & Agriculture journals, sign in here to start your access, latest two full volumes FREE to you for 14 days]({"type":"image" , "src" : "/sda/5934/TOC-Subject-Sample-2021-Environment-Agriculture.jpg"})
Abstract
Grunow first proposed the epithet Eunotogramma laeve in 1879 for specimens collected from North Carolina, USA and mounted on strewn slide no. 257 in the Cleve and Möller (C&M) exsiccatae. In 1882, he again listed E. laeve from material collected from Florida, USA and mounted on slide no. 320 from the same exsiccatae. Examination of C&M slides no. 257 and 320 from the Farlow Herbarium and the Academy of Natural Sciences of Philadelphia with the light microscope (LM) reveals the presence of three Eunotogramma species on the two slides. Under the LM, the specimens on C&M slide no. 257 have areolate frustules, whereas the two species on C&M slide no. 320 have hyaline frustules. Given that there is no nomenclatural type for E. laeve, the areolate specimens found on the C&M slide no. 257 from the Farlow Herbarium are here designated as the lectotype for the species.
Keywords:
Acknowledgements
I thank Robert Edgar and Genevieve Lewis-Gentry of the Farlow Herbarium and Marina Potapova of the Academy of Natural Sciences of Philadelphia for the loan of the priceless Cleve & Möller slides. Richard Crawford and Friedel Hinz of the Alfred-Wegener-Institut für Polar- und Meeresforschung generously provided unmounted material collected in 1949 from Beaufort, North Carolina and used by Hustedt during the preparation of his 1955 study. I thank Paul Silva for his sage counsel that helped resolve several nomenclatural quagmires and Clint Walker for help in preparation of the figures. I warmly thank Bob Edgar once again for his advice throughout the ontogeny of this project. This study was supported by funds from the Cameron D. Day Endowment at Westminster College.