Plants and their ways in South Africa . Fig. 347. — Wahlenbergia capensis, The fruit becomes erect onripening. The capsules after flowering stand erect, so that the seeds do not allfall out at once, but blow out a few at a time. Forty-six species. Roella.—Corolla large, funnel-, tubular-, or 2-celled. Stigmas 2, thick. Capsule opening by alarge pore at the top. ^66 Plants and their Ways in South Africa Rigid undershrubs. Leaves narrow, crowded, often tufted in theaxils. Flowers sessile, blue, white, or pale yellow with a dark species. AAA. Flowers more or
Plants and their ways in South Africa . Fig. 347. — Wahlenbergia capensis, The fruit becomes erect onripening. The capsules after flowering stand erect, so that the seeds do not allfall out at once, but blow out a few at a time. Forty-six species. Roella.—Corolla large, funnel-, tubular-, or 2-celled. Stigmas 2, thick. Capsule opening by alarge pore at the top. ^66 Plants and their Ways in South Africa Rigid undershrubs. Leaves narrow, crowded, often tufted in theaxils. Flowers sessile, blue, white, or pale yellow with a dark species. AAA. Flowers more or less irregular. Anthers free—Cyphia.—Petals 5, separate, or partly clinging by the. Fig. 348.—-Cyphia Zeyheriana, Pr. Capsule 2-celled, half superior upper part of their claws,opening at the top. Erect or climbing herbs, mostly with succulent or tuberous edibleroots. Flowers blue, white, or pink. Order Composite. This is the largest order of flowering plants. The flowersare massed together in heads, as in Frotea, and surrounded byan involucre. In compensation the calyx is either wanting orvery much reduced, or it is constructed so as to aid in distribut-ing the seed. The calyx is known as the pappus. Afterflowering, it may enlarge into a parachute for carrying theseeds in the wind, or it is developed into bristles, which seizehold of animals and so distribute the seeds. The corolla isgamopetalous. All the flowers may be tubular and regular orall may be strap-shaped, or the central disc flowers may be Classification of Plants 367 tubular and surrounded by the strap-shaped (ligulate, littletongue ) ray flowers. The ray flowers are usually developedat the expense of t
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectplants, bookyear1915
