. Botany of the living plant. Botany; Plants. APPENDIX A 629 are exstipulate. but that is not general for the Family. The inflorescence is very complicated, the apparent unit being the flower-like cyathium, which is itself a very compact, compound spike (Fig. 479, 1. 11.). These units are borne like flowers on an inflorescence, which is usually a cymose umbel. The cyathium itself consists of an external cup, which looks like a calyx, but is really formed of five coalescent bracts,forming an involucre. On its margin four, or occasionally five, yellowish glands are borne, a blank space being lef


. Botany of the living plant. Botany; Plants. APPENDIX A 629 are exstipulate. but that is not general for the Family. The inflorescence is very complicated, the apparent unit being the flower-like cyathium, which is itself a very compact, compound spike (Fig. 479, 1. 11.). These units are borne like flowers on an inflorescence, which is usually a cymose umbel. The cyathium itself consists of an external cup, which looks like a calyx, but is really formed of five coalescent bracts,forming an involucre. On its margin four, or occasionally five, yellowish glands are borne, a blank space being left on one side ; there two teeth of the bracts are found, where the missing gland. Fig. 479' Euphorbia Lathy7-us, L. I. flowering shoot. II. a single cvathium. III. Cyathium th involucre removed. IV. same in section. V. the involucre. VI. a single male wi flower. VII. ripe seed with caruncle. cyathium. \ III. same in section. IX. diagram of a might be. Within the cyathium a single stalked female flower occupies the centre : it projects from the cup, and hangs over the side between the two bracts which are not separated by a gland. It consists of a gynoecium of three syncarpous carpels, having three styles with bifid stigmas. It is trilocular, and one pendulous, anatropous ovule lies in each : the upward-directed micropyle is covered by a fleshy outgrowth known as the caruncle, which is character- istic. At the base of the ovary is a distended ring, held to represent the abortive perianth. The gynoecium is thus superior. Around the female flower are a number of structures which look like stamens : they are associated with minute hairy bracts. Each of these is a male flower. 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 Bower, F. O. (Frederick Orpen), 1855-1948; Wardlaw, C. W. (Claude Wilson), 1901-. London,


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Keywords: ., bookcentury1900, bookpublis, booksubjectbotany, booksubjectplants