ON HIERACIUM-HYBRIDS OBTAINED BY
ARTIFICIAL FERTILISATION
By G. Mendel.
{Communicated to the Meeting 9 June, 1869[1].)
Although I have already undertaken many experiments in fertilisation between species of Hieracium, I have only succeeded in obtaining the following 6 hybrids, and only from one to three specimens of them.
H. Auricula ♀ × H. aurantiacum ♂
H. Auricula ♀ × H. Pilosella ♂
H. Auricula ♀ × H. pratense ♂
H. echioides[2] ♀ × H. aurantiacum ♂
H. prœaltum ♀ × H. flagellare Rchb. ♂
H. prœaltum ♀ × H. aurantiacum ♂
H. Auricula ♀ × H. Pilosella ♂
H. Auricula ♀ × H. pratense ♂
H. echioides[2] ♀ × H. aurantiacum ♂
H. prœaltum ♀ × H. flagellare Rchb. ♂
H. prœaltum ♀ × H. aurantiacum ♂
The difficulty of obtaining a larger number of hybrids is due to the minuteness of the flowers and their peculiar structure. On account of this circumstance it was seldom possible to remove the anthers from the flowers chosen for
- ↑ [Published in Verh. naturf. Ver. Brünn, Abhandlungen, viii. 1869, p. 26, which appeared in 1870.]
- ↑ The plant used in this experiment is not exactly the typical H. echioides. It appears to belong to the series transitional to H. præaltum, but approaches more nearly to H. echioides and for this reason was reckoned as belonging to the latter.
