Note 138 — Chapter X · PLANTS continued—FRUITS—ORNAMENTAL TREES—FLOWERS.
Reading edition
Gärtner ‘Bastarderzeugung,’ 1849, s. 87, and s. 169 with respect to Maize; on Verbascum, ibid., s. 92 and 181; also his ‘Kenntniss der Befruchtung,’ s. 137. With respect to Nicotiana see Kölreuter ‘Zweite Forts.,’ 1764, s. 53; though this is a somewhat different case.