The American botanist and florist; including lessons in the structure, life, and growth of plants; together with a simple analytical flora, descriptive of the native and cultivated plants growing in the Atlantic division of the American union . 237, Maple—an axial, ramous root. 238, Parsnip—a fusiform root. 239, Turnip—a napiform root. 210. Corallorhiza—a coralline root. 204. The forms of inaxial roots are fibrous, fibro-tuber-ous, tubercular, coralline, nodulous, and moniliform. lihe fihroitsroot consists of numerous thread-like divisions, sent oiF directlvfrom the base of the stem, with no m
The American botanist and florist; including lessons in the structure, life, and growth of plants; together with a simple analytical flora, descriptive of the native and cultivated plants growing in the Atlantic division of the American union . 237, Maple—an axial, ramous root. 238, Parsnip—a fusiform root. 239, Turnip—a napiform root. 210. Corallorhiza—a coralline root. 204. The forms of inaxial roots are fibrous, fibro-tuber-ous, tubercular, coralline, nodulous, and moniliform. lihe fihroitsroot consists of numerous thread-like divisions, sent oiF directlvfrom the base of the stem, with no main or tap root. Such arethe roots of most Grasses, which multiply their fibres excessivelyin light sandy soils. Fihro-tuherous roots (or fasciculate) are THE ROOT. 69- so called when some of the fibres are thick and fleshy, as in theAsphodel, Crowfoot, Paeony, Orchis, and Dahlia. When. thefibre is enlarged in certain parts only, it is nodulous ; and whenthe enlargements occur at regular intervals, it is inoniliforin(necklace-like). When it bears little tubers here and there, asin Squirrel-corn (Dicentra Canadensis), it is 241, Pfeony—fibro-tuberous roots. 242, Ginseng—fusiform root. 243, Pelargonium triste—moniliformroot. 244, Spirea filipendula—^nodulous root. 245, A creeping stem, with adventitious roots. 205. Deposits of starch, or farinaceous matter, in all thesecases, constitute the thickening substance of the root, stored upfor the future use of the plant. 206. Adventitious roots are such as originate in some part of the ascending axis—stem or branches—whether above or below the ground. They are so called becausetheir origin is indeterminate, both in place and time. Several special forms should benoticed; as the cirrlious roots of certain climbing vines (European I^^y, Poison Ivy, Trum-pet-creeper) put forth in great numbers from the stem, serving for its mechanical supportand no other known use. Again ; the Fulcra of certain Monocotyledo
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Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1870
