The treasury of botany: a popular dictionary of the vegetable kingdom; with which is incorporated a glossary of botanical terms . (JTi)e Crcatfurg of 23atann. [acal ally more or less cjiindrical, and of smalldimensions, becomes flattened out, and as-sumes a leaf-like appearance : these dilatedIe:if-stalks, or, as they are technicallytermed, phyllodes, fulfil the functions ofthe leaves, and are of very varied formin the different species. They are al-ways so placed that their edges look up-wards and downwards, so that by thismeans, as well as by the arrangement ,s **. .Acacia argyrophylla (with
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The treasury of botany: a popular dictionary of the vegetable kingdom; with which is incorporated a glossary of botanical terms . (JTi)e Crcatfurg of 23atann. [acal ally more or less cjiindrical, and of smalldimensions, becomes flattened out, and as-sumes a leaf-like appearance : these dilatedIe:if-stalks, or, as they are technicallytermed, phyllodes, fulfil the functions ofthe leaves, and are of very varied formin the different species. They are al-ways so placed that their edges look up-wards and downwards, so that by thismeans, as well as by the arrangement , s **. .Acacia argyrophylla (with phyllodes). of the veins, they may be distinguishedfrom true leaves, which have their surfaceslooking upwards and downwards. It resultsfrom the singular position of these organsthat the trees possessing them give butlittle shade, as the light is not interceptedin its passage to so great an extent as it isby the leaves of ordinary trees. This pecu-liar direction of the leaf is not confinedto the acacias, but is also found in otherAustralian trees : e. g. Eucalyptus. At thebase of the leaf-stalk of the acacias, whereit ]oinsj:he branch, are two small stipules, which are sometimes represented by spines.The species of acacia are very numerous, and widely diffused in the warmer regionsof the globe. A. gummifera is found inMogadon A. Xemu is abundant in the en-virons of Nagasaki, Japan. A. glandulosaand A. brachyloba adorn the banks of theMississippi. Some of the species are ofgreat importance, as furnishing gum; otherscontain an abundance of tannin, whichrenders th