. The Botanical Class-Book and Flora of Pennsylvania. ndle-shaped) Fig. 9. This rootconsists of a thick fleshy stalk (cauclex) tapering downwards, ? Grays Botonlctl Tszt Book ; TWrd Edition, page S2. 16 THE ROOT. and also for a short space upwards. %It sends off from thesides and extremity, thread-like fibrils, which arc its true Parsnip, Carrot and Radish. 33. Nahform (Turnip-shaped.) This is a variety ofthe fusiform, where the upper portion swells out, so that thediameter is greater than the length. Ex. Turnip. 34. Premorse (form prcemorsis bitten) Fig. 10. Thisroot terminates
. The Botanical Class-Book and Flora of Pennsylvania. ndle-shaped) Fig. 9. This rootconsists of a thick fleshy stalk (cauclex) tapering downwards, ? Grays Botonlctl Tszt Book ; TWrd Edition, page S2. 16 THE ROOT. and also for a short space upwards. %It sends off from thesides and extremity, thread-like fibrils, which arc its true Parsnip, Carrot and Radish. 33. Nahform (Turnip-shaped.) This is a variety ofthe fusiform, where the upper portion swells out, so that thediameter is greater than the length. Ex. Turnip. 34. Premorse (form prcemorsis bitten) Fig. 10. Thisroot terminates as though it had been bitten off under theground. This is due to the fact that the lower extremitiesperish after the first year. Ex. Viola pedata, Scabidsa,succisa and Primrose. 35. Fibrous Root, Fig. 11. This consists of numeroussmall fibres, sent off directly from the base, sometimes so closotogether as to form tufts of a downy resemblance. Such arethe roots of most grasses, which multiply their fibres exceed-ingly in a light sandy soil. 11.
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Keywords: ., bookauthornol, bookcentury1800, bookdecade1850, booksubjectbotany
