Norma Etta Pfeiffer

American botanist (1889-1989).

Norma Etta Pfeiffer (1889–1989) was an American botanist who specialized in the study of lilies and Isoetes. She discovered and described the Chicago-endemic flowering plant species Thismia americana described in her doctoral thesis in 1913.

Abbreviations: N.Pfeiff.
Occupations: botanist, botanical collector
Citizenships: United States
Dates: 1889-01-01T00:00:00Z – 1989-08-23T00:00:00Z
Birth place: Chicago
Direct attributions: 7 plants, 0 fungi
Authorship mentions: 8 plants, 0 fungi

7 plants attributed, 1 plant contributed to8 plants:

Thismia americana (Banded Trinity) N.Pfeiff. 1914
plant species in the burmanniaceae family
Thismia americana, known as thismia or banded Trinity, was a species of flowering plant that was first discovered in 1912 by Norma Etta Pfeiffer in the wetlands surrounding Chicago's Lake Calumet, and described by her in 1914. The type specimen was found in what was then a wet-mesic sand prairie at 119th Street and Torrence Avenue in what would become the industrial neighborhood of South Deering. The plant has not been seen since 1916, and the ground where it was observed has since been extensively altered by industrial development. The species is believed to be extinct. Several extensive
Isoetes lithophila (Rock Quillwort) N.Pfeiff. 1922
plant species in the isoetaceae family
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Isoetes ovata N.Pfeiff. 1922
plant species in the isoetaceae family
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Selaginella landii Greenm. & N.Pfeiff. 1918
plant species in the selaginellaceae family
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Isoetes virginica (Virginia Quillwort) N.Pfeiff. 1937
plant species in the isoetaceae family
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Thismia hillii (Cheeseman) N.Pfeiff. 1914
plant species in the burmanniaceae family
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Isoetes flaccida var. alata N.Pfeiff. 1922
plant variety in the isoetaceae family
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Isoetes piedmontana (Peidmont Quillwort) (N.Pfeiff.) C.F.Reed 1965
plant species in the isoetaceae family
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