[31]

Desmodium Hedysarum gyrans

[data not transcribed] F 162

[31v]

*(2) page 60

The genus Solanum would be a good one for such experiments, although the flowers are not very small, yet they are The flowers are said by H. Müller (Befruchtung, p. 434) generally to be unattractive to insects from not secreting nectar, and not producing much pollen, and from not being very conspicuous. Hence probably, it is that according to Verlot (Production des Variétés 1865, p. 72) the varieties of 'les aubergines et les tomates' (species of Solanum) do not cross when they are cultivated near together; but it should be remembered that these are not endemic plants species. On the other hand the flowers of the common potato (S. tuberosum) though they do not secrete nectar (Kurr, Bedeutung der Nektarien 1833, p. 40) yet cannot be considered as inconspicuous and the

[Cross and self fertilisation, p. 387, n*: "Some of the species of Solanum would be good ones for such experiments, for they are said by H. Müller ('Befruchtung' page 434) to be unattractive to insects from not secreting nectar, not producing much pollen, and not being very conspicuous. Hence probably it is that, according to Verlot ('Production des Variétiés' 1865 page 72), the varieties of "les aubergines et les tomates" (species of Solanum) do not intercross when they are cultivated near together; but it should be remembered that these are not endemic species. On the other hand, the flowers of the common potato (S. tuberosum), though they do not secrete nectar Kurr 'Bedeutung der Nektarien' 1833 page 40, yet cannot be considered as inconspicuous, and they are sometimes visited by Diptera (Müller), and, as I have seen, by humble-bees. Tinzmann (as quoted in 'Gardeners' Chronicle' 1846 page 183, found that some of the varieties did not bear seed when fertilised with pollen from the same variety, but were fertile with that from another variety."]