A seeweed known as Huiro Palo massively harvested in Chile for export as a thickening agent in foods and cosmetics. The ecological consequences can be devastating.
Terpsinoe americana by Henri CoupinFrom: Album général des diatomées marines, d'eau douce ou fossiles : album représentant tous les genres de diatomées et leurs principales espèces / par Henri Coupin (b. 1868).Plate 313: frustrules (600x magnification). sea water
Terpsinoe americana by Lisa M. Weimer (USGS)Found in Chesapeake Bay Diatoms by Lisa M. Weimer, an online USGS publication located at http://pubs.usgs.gov/pdf/of/of99-45/diatom.pdfPlate 2Terpsinoe americana (Bail.) Rolfs, PTMC 3-P-2 422-424 cm., x 2000.