. Transactions and proceedings of the New Zealand Institute . imilar to the crystals in theleaf of Parsonsia. The cuticle of Plagi-anthus is also rather thin, and in its pali-sade layer are cavities or large empty cells,very similar to those of the Fuchsia leaves contain abundance of muci-lage when the leaf is ready to fall, andalso in Plagianthus when it is quite occurrence of mucilage in Plagi-anthus is probably a character of system-Fig. epidermis of leaf atic importance however, and is notof Fuchsia excorticate ; x 250. specially produced owing to the deciduous
. Transactions and proceedings of the New Zealand Institute . imilar to the crystals in theleaf of Parsonsia. The cuticle of Plagi-anthus is also rather thin, and in its pali-sade layer are cavities or large empty cells,very similar to those of the Fuchsia leaves contain abundance of muci-lage when the leaf is ready to fall, andalso in Plagianthus when it is quite occurrence of mucilage in Plagi-anthus is probably a character of system-Fig. epidermis of leaf atic importance however, and is notof Fuchsia excorticate ; x 250. specially produced owing to the deciduous habit, as it is common in the familyMalvaceae, according to Solereder.* Crystals also are common in mostof the members of the two families Onagraceae and Malvaceae. Nomention is made by Solereder of the cavities in the palisade layer ofthe leaves of these two species. (See figs. 4 and 5.) Olearia Forsteri Hook. f. This is a small tree, occurring only in the bush. It has a stringy leaves are leathery, and have a thick tomentum on the lower * Solereder, H.: Systematic Anatomy of the Dicotyledons. Translated by L. and F. E. Fritsch, vol. 1, p. 14t>. Suckling.—Leaf-anatomy of Trees and Shrubs on Port Hills. 185- When specimens of this tree are grown in the open, in gardens, theleaves are a little smaller, rather curled up, and of a brighter yellowish- green . JC/ ; Leaf-anatomy.—The upper epidermis is covered with a fairly thickcuticle. If the upper epidermis be stripped off and stained with haema-toxylin, the cuticle remainscolourless, and can be seen to ce/t.—fhave small openings here and efthere, surrounded often by mark- P**ings which seem to be arrangedin the shape resembling theguard-cells of stomata. Overthe opening is a collection of agranular or scale-like substance,looking like broken pieces of thecuticle, which it probably is, sinceit turns yellowish - brown withchlor-zinc-iodide, and yellow incaustic potash, and is hardlysolu
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