| Description | Slide shows table 23: 'Frequency distribution for Corolla length in a cross-between varieties of Nicotiana longiflora (After East)'.
Row headings: 'designation number', 'year', 'generation', 'parent size', 'class centers in millimeters'.
Column headings: 'designation number': '383', '383', '383', '330', '330', '330', '383 x 330', '(383 x 330)1', '(383 x 330)2', '(383 x 330)1-1', (383 x 330)1-2', '(383 x 330)1-3', '(383 x 330)1-4', '(383 x 330)2-1)', '(383 x 330)2-3', '(383 x 330)2-4', '(383 x 330)2-5', '(383 x 330)2-6', '(383 x 330)1-2-1', '(383 x 330)1-3-1', '(383 x 330)2-6-1', '(383 x 330)2-6-2', '(383 x 330)1-3-1-1', '(383 x 330)2-6-2-1'.
The years date between 1911 and 1915.
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