An Introduction to Botany

acid Adolphe Brongniart anthers apex appearance arranged axis bark base become body botanists bracteæ branches Brown buds called calyx Candolle carpella cavity cells cellular tissue cellules centre chalaza characters Class colour Compositæ compound considered consists corolla cotyledons cuticle dehiscence developed diameter dicotyledons direction dissepiments distinct distinguished ducts Dutrochet elongated embryo exist external extremely fleshy flowers fluid fructification fruit genera genus granules hairs hilum indehiscent inflorescence integument kind latter leaf leaflets leaves Linnæus lobes margin medullary rays membrane Mirb Mirbel modifications monocotyledons nature observed organs ovarium ovula ovulum oxygen parenchyma peculiar pericarpium petals petiole pistillum pith placenta plants Plate plumula pollen produced racters radicle receptacle remarkable roots seed sepals separated shoot sides sometimes species spiral vessels sporules stamens stem stigma stomata structure substance surface term terminating testa transverse tree tube valves vascular system vascular tissue vegetation veins wood woody fibre