. My garden, its plan and culture together with a general description of its geology, botany, and natural history. Gardening. 348 MY GARDEN. A more beautiful plant, and one more rare, is the Draparnaldia glomerata (fig. 803), which is remarkable in having a large central stem, from which other stems branch. This is also a superb microscopic object. In March, bright green irregular patches of vegetal structure rise to the top of the water of the lake and of the Backwater. When examined by the microscope with a power of 100 diameters, they present to view a number of cells. This is called the Te
. My garden, its plan and culture together with a general description of its geology, botany, and natural history. Gardening. 348 MY GARDEN. A more beautiful plant, and one more rare, is the Draparnaldia glomerata (fig. 803), which is remarkable in having a large central stem, from which other stems branch. This is also a superb microscopic object. In March, bright green irregular patches of vegetal structure rise to the top of the water of the lake and of the Backwater. When examined by the microscope with a power of 100 diameters, they present to view a number of cells. This is called the Tetraspora lubrica (fig. 804). At the bottom of the river patches of bright green confervse are found. These, when magnified by the microscope lOO diameters, show every filament to be jointed ; and when further examined with a power of 400 diameters, a beautiful spiral structure is brought to view. I have hitherto not been able to discover any mode of permanently mounting this object, as, strange to say, it invariably shrivels, and loses its beautiful spiral. Fig. 803.—Draparnaldia glomerata, X 100 diam. Fig. 804.—Tetraspora lubrica, x loo diam. ^s^^^k:^^^ s s^^ ;;^^^3ii>-- ' '-^S^ :a £^ ^^^ / Fig. 805. - Zygnema spiralis (upper fig. X 100 diam., lower fig. x 400 diim.)." structure. The name of this form is the Zygnema spiralis (fig. 805). About July it suddenly takes a start; and grows with such rapidity that I have drawn out associated filaments fifteen yards long. It covers the surface of the water with a dense scum, as is shown in plate 14. Thousands of water-insects and water-snails live in it. The trout resort to it, and the ever active call-ducks amuse them- selves all day long with 'feeding on the creatures which live upon it. Sometimes we remove tons upon tons, but this is a great trouble and causes some annoyance, as when decomposing it smells disagreeably. The miller tried to make it into paper, but it was found that the fibre has no strength. When the Sep
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectgardening, bookyear18
