Page:Mendel's principles of heredity; a defence.pdf/116

 {{c|ON HIERACIUM-HYBRIDS OBTAINED BY ARTIFICIAL FERTILISATION {{dhr}}

{{fine block|{{sc|By G. Mendel.}}

{Communicated to the Meeting 9 June, 1869 .)}}}}

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.

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