. The commonly occuring wild plants of Canada, and more especially of the province of Ontario : a flora for the use of beginners. Botany; Botany; Plants. ELEJIENTS OF STRUCTURAL BOl'ANY. 27 Fig. of the latter you will re- member that each petal was precisely like its fellows in size and shape, and we there- fore spoke of the corolla a>s regular. In the Pea, on the other hand, one of the petals is large, broad, and open, whilst Fig. 37. two smaller ones, in the front of the flower, are united into a kind of hood. We shall speak of this corolla, then, and all others in which the petals a
. The commonly occuring wild plants of Canada, and more especially of the province of Ontario : a flora for the use of beginners. Botany; Botany; Plants. ELEJIENTS OF STRUCTURAL BOl'ANY. 27 Fig. of the latter you will re- member that each petal was precisely like its fellows in size and shape, and we there- fore spoke of the corolla a>s regular. In the Pea, on the other hand, one of the petals is large, broad, and open, whilst Fig. 37. two smaller ones, in the front of the flower, are united into a kind of hood. We shall speak of this corolla, then, and all others in which the petals are unlike each other in size or shape, as irregular. As the Pea blossom bears some resemblance to a butterfly, it is said to he papilionaceous. 36. Remove now the calyx-teeth and the petals, being very careful not to injure the stamens and the pistil, enveloped by those two which form the hood. Count the stamens, and notice their form (Fig. 37). You will find ten, one by itself, and the other nine with the lower halves of their filaments joined together, or coherent. When stamens occur in this way, in ^wo distinct groups, they are said to be diadelphous\ if in ^ree groups, they would be trindelplwns; if in several groups, pohjadelplious. In the Mallow, you will remem- ber, they are united into out group, and therefore we described theca as rnongdejpjiom. You will perhaps be a little puzzled in trying to determine to what part ol the flower the stamens are attached. If you look closely, however, you will see that the attachment, or insertion, is not quite the same as in the Buttercup and the other flowers 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. (Henry Byron), 1844-1933. Toronto : W. J. Gage
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Keywords: ., bookcentury1800, booksubjectbotany, booksubjectplants, bookyear18
