. The elements of structural botany [microform] : with special reference to the study of Canadian plants : to which is added a selection of examination papers. Plant anatomy; Botany; Botanique; Botanique. 10 ELEMENTS OF STUUCTUUAL UOTANY. si- i-'l. Fig. 14. 1m-;-. 15. 12. You are now to try and procure a T3uttercup whose Howers, or some of them, have withered away, leaving only the head of carpels on tlie receptacle. The carpels will have swollen considerably, and will now show themselves much moie dis- tinctly than in the flower which we have ])een examining. This is owing to the growth of th
. The elements of structural botany [microform] : with special reference to the study of Canadian plants : to which is added a selection of examination papers. Plant anatomy; Botany; Botanique; Botanique. 10 ELEMENTS OF STUUCTUUAL UOTANY. si- i-'l. Fig. 14. 1m-;-. 15. 12. You are now to try and procure a T3uttercup whose Howers, or some of them, have withered away, leaving only the head of carpels on tlie receptacle. The carpels will have swollen considerably, and will now show themselves much moie dis- tinctly than in the flower which we have ])een examining. This is owing to the growth of the ovules, which have now become seeds. Kemove one of the carpels, and carefully cut it through the middle lengthwise. You will find that the seed almost entirely tills the cavity. (P'igs. l-i and 15.) This seed consists mainly of a hard substance called a//junif>n, enclosed in a thin covering. At the lower end of the albumen is situated a very small body, which is the onhyro. It is this which developes into a new plant when the seed ^'ff- is* germinates. 13. We have .seen, then, that our plant consists of several parts : (1). Th© Root. This penetrates the soil, avoiding the light. It is nearly white, is made up of fibres, from which numbers of much finer fibres are given off, and is entirely destitute of buds and leaves. (2). The Stem. This grows upward, is coloured, bears foiiage-leaves at intervals, gives off branches from the axils of these, and bears flowers at its upper end. (3). The Leaves. These are of two sorts : Foliaqe- leavcs and Flower-leaves. The former are sub-divided Fijr. 14.â llipe carpel of Buttercup. Fig. ;).- Section of same. Fig. 16.âSection of seed showing the small embryo. All much magnified. â 4 â¢n. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Spotton, H. B. (Hen
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Keywords: ., book, bookcentury1800, booksubjectbotany, booksubjectplantanatomy
