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3 records found in the Index Nominum Genericorum database.

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Diacritical Conversion

Sphaerospermum B. Renault ex C. E. Bertrand, Bull. Soc. Bot. France 54: 223. 1907 (non Cleve 1868).
Not validly published: nomen nudum.
FOSSIL-INCERTAE SEDIS (104) 07 Mar 2018

Diacritical Conversion

Sphaerospermum A. T. Brongniart ex A. Loubière, Ann. Sci. Nat., Bot. ser. 10. 15: 18. 1933 (non Cleve 1868).
T.: S. brongniartii A. Loubière ('brongniarti')
Seed; Carboniferous; St. Étienne, France.
FOSSIL-GYMNOSPERMAE-PTERIDOSPERMOPHYTA (115) 21 Apr 2005

Diacritical Conversion

Sphaerospermum Cleve, Nova Acta Regiae Soc. Sci. Upsal. ser. 3. 6(11): 12, 35. 1868.
T.: S. calcareum Cleve
CHLOROPHYC.-ZYGNEMATACEAE (2) 9 Feb 1996

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