80 THE MICROSCOPIST. 



in the wing of the seed of Lophospermum erubescens, and in 

 Calempelis scaber. Spiral cells in leaves and stems of many 

 orchids, as Onicidium and Pleurothallis ruscifolia, in garden 

 Balsam, in the leaf of Sphagnum, the fructification of Liver- 

 worts, the winged seed of Sphenogyne speciosa. Annular cells 

 in Opuntia. Filamentous cells in Mushrooms and Agarics. 

 Hexagonal cells in pith of Elder. Stellate cells in Rush. 

 Ciliated moving cells in Vaucheria, Fuci, and Chara. Professor 

 F. Schulze states, that by means of nitric acid and phosphate 

 of potash, the cells of plants, young or old, hard or soft, may 

 be perfectly isolated for microscopic examination. 



2. Vessels and Vascular Tissue. Woody tissue in the stem 

 of ordinary trees ; the fibres may be separated by maceration 

 from the inner bark of the Hemp-plant, Flax-plant, New Zea- 

 land Flax, Mallows, &c., Disc-bearing woody tissue in Scotch 

 Fir, Weymouth Pine, Araucaria, Altingia excelsa, Cycas, 

 Winter's bark tree, Illicium. Dotted vessels in stem of Willow, 

 Sugar-cane, Pitcher- plant. Spiral vessels in Oncidium bicolor, 

 Banana, and Plantain ; most liliaceous plants (as Hyacinth, 

 Lily, and Crinum), leaf of Geranium and Strawberry, Cabbage, 

 Lettuce, Asparagus shoot; branched spirals in Long-kek and 

 Anagallis. Annular vessels in Opuntia vulgaris, Leek, Equise- 

 tuml Telmateia. Reticulated vessels in garden Balsam. Sca- 

 lariform vessels in Tree Ferns, Diplazium seramporense, As- 

 plenium pubescens, Osmunda. Lactiferous vessels in various 

 species of Ficus, as the India-rubber fig (Ficus elastica), Gutta- 

 percha plant (Isonandra Gutta), Euphorbias, Lettuce, Dande- 

 lion, Celandine, Goatsbeard. 



3. Contents of Cells. Starch-cells in Potato, angular starch- 

 granules in Rice, compound starch- granules in Arrow-root, 

 peculiar starch-grains in the milky juice of Euphorbia. Air- 

 cells and lacunae in the Rush, Sparganium ramosum, Lim- 

 nocharis plumieri, and other aquatic plants. Cells with 



