ADW: Elliptio nigella: Classification
Elliptio nigella (winged spike) ...
animaldiversity.ummz.umich.edu/site/accounts/classification/Elliptio_nigella.html

ADW: Elliptio: Classification
... Elliptio nigella (winged spike)
animaldiversity.ummz.umich.edu/site/accounts/classification/Elliptio.html

109. TRITICUM Linnaeus, Sp. Pl. 1: 85. 1753.
Glumes 10-12 mm, shorter than or equaling lemma, papery or leathery, keeled or winged; spike dense, simple or branched at base. 2a. Spike usually branched at base; glumes obviously
flora.huh.harvard.edu/china/PDF/PDF22/Triticum.pdf

Fresh Find: Students stumble on possible long-lost freshwater mussel
But the winged spike is not the first mussel to have been found years after last being collected. In past years, the fat threeridge ( Amblema neislerii ) and the Altamaha arcmussel
www.forestry.uga.edu/alumni/mag/logS09.pdf

Federal Listing: Candidate Species in Georgia
...winged spike: Elliptio nigella: Chattahoochee and Flint Rivers: Altamaha lance: Elliptio shepardiana: Altamaha, Ocmulgee, and Ohoopee Rivers: Altamaha spinymussel
warnell.forestry.uga.edu/service/library/index.php3?docID=106&docHistory%5B%5D=5

The Flint River Basin's Changing Faces: Water Management Challenges ...
Winged spike-Extinct Lined pocket-Extinct Shinyrayed pocketbook-State and Federally Endangered Gulf moccasinshell-State and Federally Endangered Oval pigtoe-State and Federally
www2.gsu.edu/~wwwenv/waterPDF/W2002007.pdf

Chapter 3. Key to the species of Carex in the Rocky Mountain Region
Chapter 3. Key to the species of Carex in the Rocky Mountain Region C C A A B A Map of the Rocky Mountain Region, showing the geographic location of the three keys used below.
porter.biology.colostate.edu/carexkey.pdf