Note 20 — Chapter XV · ON CROSSING.
Reading edition
‘Bastarderzeugung,’ s. 307. Kölreuter (‘Dritte Fortsetszung,’ s. 34, 39), however, obtained intermediate tints from similar crosses in the genus Verbascum. With respect to the turnips, see Herbert’s ‘Amaryllidaceæ,’ 1837, p. 370.