The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.
- Fernald, M. 1950. Manual (ed. 8) i–lxiv, 1–1632. American Book Co., New York.
- Rhodora 14(163): 139–141. 1912. (Rhodora)
- Rhodora 33(396): 235. 1931. (Rhodora)
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