Descriptive botany, or, The art of describing plants correctly in scientific language : for self-instruction and the use of schools / by Professor Lindley.

  • Lindley, John, 1799-1865.
Date:
1860
Catalogue details

Licence: Public Domain Mark

Credit: Descriptive botany, or, The art of describing plants correctly in scientific language : for self-instruction and the use of schools / by Professor Lindley. Source: Wellcome Collection.

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    BELLIS PERENNIS : The Daisy. Corollifloral Exogens. Nat. Order, Asteraoeje, or Composites. Root perennial, of numerous perpendicular, nearly simple fibres. Stem very short, branching at the crown and spreading horizontally. Leaves numerous, all radical, spreading, horizontal, obovate, acutely crenate, deep green, slightly hairy especially beneath, tapering into a thin channelled fringed petiole. Scapes radical, ascending, simple, terete, hollow, pubescent, naked, monocephalous! (i.e. each bearing a solitary flowerhead or capitulum). Involucre deep green, hemispherical, hairy, of about 12, linear, obtuse bracts in two rows. Florets; of the rat white, ligulate, blunt, in about 3 rows, neuter; of the disk, yellow, tubular, hermaphrodite; ovary oval, compressed, without pappus; corolla funnel-shaped, 5-lobed, slightly hairy at the base ; anthers syngenesious, yellow simple at base; style filiform; stigma 2-fid, with short acute plano-convex lobes. * Receptacle conical, hollow, naked. SENECIO VULGARIS: Common Groundsel. Corollifloral Exogens. Nat. Order, Asteraceie, or Composites. Root annual, simple, with many long slender fibres. Stem erect, more or less branched, terete, slightly striated, pale green. Leaves succulent, with a few weak scattered hairs, which also occur on the stem; radical obovate or spathulate, obtusely lobed, and slightly toothed; cauline sessile, bluntly pinnatifid, unequally toothed, at the base broader and amplexicaul. Flower-heads solitary, in the axils of the uppermost leaves, clustered, with short arachnoid peduncles ; involucrum somewhat cylindrical, eventually turned back upon the peduncles ; bracts at the base triangular and sphacelated, the rest linear, acute, erect, sphacelated at' the point; florets all tubular and hermaphrodite. Corolla slender, funnel-shaped, yellow. Stamens with yellow syngenesious anthers. Ovary inferior minute, oblong, smooth; style filiform; stigmas 2, linear, truncated. Pappus soft, pilose. Receptacle flat, hollow, naked, eventually convex. AcHjENES fusiform, striated, minutely pubescent, with weak, spreading, silky pappus. TARAXACUM DENS LEONIS : The Dandelion. Corollifloral Exogens. Nat. Order, Asterace.®, or Composites. Root tap-shaped, milky, externally black when old. Leaves all radical, numerous, spreading, bright shining green, quite smooth, thin, milky, narrowing downwards, pinnatifid, with unequally toothed runcinate lobes. Scapes usually longer than the leaves, erect, smooth, brittle, leafloss. Flower-heads solitary, calyculate; the outer scales of the involucre several, linear, acute, loosely recurved and wavy; inner erect, in one row, deep green, somewhat coloured and jagged at the point; finally, bent down upon the scape. Florets all ligulate and hermaphrodite. _ . Corolla 5-toothed, bright yellow, in the ray olive green at the back; in the disk shorter and whole coloured. Stamens 5, with yellow syngenesious sagittate anthers. Ovary inferior, compressed, smooth, white, a little scabrous at the top \ with a very short terete rostrum, one-celled, with a single ascending ovule; style filiform, pubescent on the upper half; stigmas 2, projecting beyond the anthem, linear-, recurved. Pappus hair-like (pilose), in several rows, scabrous. Receptacle flat, naked. . , , . . Acilenes linear-obovate, slightly compressed, toothed near the apex, extended into a slender terete beak twice their own length. Pappus spreading horizontally, pilose. [Ous. This plant varies greatly in its foliage.]