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Contributed by Harvard University Botany Libraries.
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Transcription
Sunday July 30-'92
1850. Oscillatoria princeps
Fresh Pond - Stratford
abundant - generally in
company with Lyngbya aestuarii.
1851. Grinnellia Americana
Rhod Norton,
1852. Fragilaria entophlebida
Rhod Norton
↓ 1853. Polysiphonia nigrescens
var. durkii