. L'histoire naturelle des plantes. La botanique. MELASTOMA LEC. 17 Monochcetum alpestre. 'Posés de cymes ou glomérules, est terminale ou plus rarement axillaires ou inséré dans le côté des branches. Quelques Miconias, dont un genre Tetrazygia a été faite, le calice campanulée ou presque, tronquer ou indentées avec cinq dents à la marge, et d'un ovaire inférieur au total, et il est dit, adhérents ; les fleurs sont généralement assez grande. Ils ne forment qu'un article de ce genre. Dans d'autres, appelé La- ceraria, le calice irre- ouvre régulièrement au moment de l'anthèse. Par ces et d'autres types, Mic

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. The natural history of plants. Botany. MELASTOMA CEM. 17 Monochcetum alpestre. 'posed of cymes or glomerules, is terminal or more rarely axillary or inserted in the side of the branches. Some Miconias, of which a genus Tetrazygia has been made, have the calyx campanulate or nearly so, truncate or indented with five teeth at the margin, and an ovary altogether inferior and, it is said, adherent; the flowers are generally rather large. They form only a section of this genus. In others, called La- ceraria, the calyx opens irre- gularly at the time of anthesis. By these and some other types, Miconia is inseparable from Pachyanthus, whose flowers in cymes, generally not nume- rous, have a superior calyx with five or six divisions fur- nished externally with an ap- pendage or triangular promi- nence. Calycogonium will also, with us, form a section of the genus Miconia. The lobes of the calyx are ordinarily fur- nished externally with appen- dages of various form, pointed or tubercular, sometimes nil, and the ovary, depressed at the summit, is inferior. It inhabits the Antilles. Conostegia is Miconia with compound terminal clusters, often much developed, the flowers having a simple calyx like that of Laceraria; but it detaches itself circularly at its base, forming a conical hood. Pterocladon Sprucei, a species from eastern Peru, is a Miconia with numerous flowers having the external surface of the floral receptacle furnished with five vertical salient layers and the pedicel in the interval between the sepals. The ovary, half adherent, is surmounted by a style with peltate stigmatiferous head, and the throat of the receptacle is salient and more or less crenelate. In the Brazilian Leandra, the flowers are those of a Miconia with the gynsecium nearly free; bat they have pointed petals and bracts VOL. VII. c. Fig. 26. Stamens (f).. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and app

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• bookcentury1800
• bookdecade1870
• booksubjectbotany
• bookyear1871