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Rudbeckia speciosa Schrad.
Genus:
Rudbeckia
Species:
speciosa (1831)
Author:
H.A.Schrader
Published place:
Gottingen
Published year:
1831
Published in:
H.A.Schrader in: Index Seminum Horti Academici Gottingensis 1831: 5
Original seen in:
Leiden (L) photocopy; IDC microfiches (7842)
Notes:
Later published in: Linnaea 8 (1833) Litt.24-25