[10]

Ampelopsis tricuspidata Hyponasty + apogeotropism

[10v]

Fig. 151

[10.2v]

33

Introduction

and single plant, the seedlings thus raised may be considered as hermaphrodite brothers and or sisters; though hermaphrodite, those raised from the same capsule being as close as twins or animals of the same litter. But in one sense the flowers on the same plant are distinct individuals, and as several flowers on the mother-plant were crossed by pollen taken from several flowers on the father-plant such seedlings would be in one sense half brothers and or sisters, but more closely related than are the half brothers and sisters of ordinary animals. But The flowers on the mother-plant were, however, commonly crossed by pollen taken from two or more distinct plants; and in their cases the seedlings might be called with more truth half-brothers and or sisters. When however two or three mother-plants were crossed, as often happened, by pollen taken from two or three distinct plants, (the seeds being all intermingled) some of the seedling of the first

[10.2v2]

34

Introduction

generation would be in no way related, whilst many others would be whole or half-brothers and sisters. In the second generation a large number of the seedlings would be what may be called whole or half first cousins, mingled with whole and half brothers and sisters, and with some plants not at all related. So it would be the next and succeeding generations, but there would also be many cousins of the second and more remote degrees. The relationship will thus have become more and more inextricably complex in the later generation; with almost all the plants in some degree and often closely related.

Introduction

I have only so one other point to notice, with respect to plants but this is one of the highest importance; namely that they the crossed and self-fertilised plants were all subjected in each generation to as nearly similar and uniform conditions