. Lessons in botany. Botany. CHAPTER XLIV. DICOTYLEDONS (Continued). Order RosiflorjE. 426. Lesson XI.—The rose-like flowers are an interesting and important group. In all the members the receptacle (the end of the stem which bears the parts of the flower) is an im- portant part of the flower. It is most often widened, and either cup-shaped or urn-shaped, or the centre is elevated. The carpels are borne in the centre in the depression, or on the elevated central part where the receptacle takes on this form. The calyx, corolla, and the stamens are usually borne on the margin of the widened rece
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. Lessons in botany. Botany. CHAPTER XLIV. DICOTYLEDONS (Continued). Order RosiflorjE. 426. Lesson XI.—The rose-like flowers are an interesting and important group. In all the members the receptacle (the end of the stem which bears the parts of the flower) is an im- portant part of the flower. It is most often widened, and either cup-shaped or urn-shaped, or the centre is elevated. The carpels are borne in the centre in the depression, or on the elevated central part where the receptacle takes on this form. The calyx, corolla, and the stamens are usually borne on the margin of the widened receptacle, and where this is on the margin of a cup-shaped or urn-shaped recep- tacle they are said to be perigytions, that is, around the gynoecium. The calyx and corolla are usually in fives. There are three families, as follows. 427. The rose family (rosaceae).—In this family there are five types, represented by the following plants and illustrations: ist. In spiraea (fig. 225) the receptacle is cup-shaped. There are five carpels, united at the base, but free at the ends. 2d. In the strawberry the receptacle is conic and bears the carpels (fig. 226). The conic receptacle becomes the fleshy fruit, with the seeds in little pits 265. Fig. 225. Perigynqus flower of spiraea (S. lanceolata). Warming.) (From. 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 work.. Atkinson, George Francis, 1854-1918. New York, H. Holt and company