. Elementary botany . Botany. 178 MONOCOTYLEDONS to twist so that the true anterior part of the flower occupies a posterior position. Thus the labellum is in reality a median posterior perianth-leaf, and all the other floral-leaves have their true positions reversed in the same manner. The flower consists thus of six perianth-leaves, the median posterior being the labellum; three gynandrous stamens, only one (median an- terior) of which is complete; a gynsecium composed of three car- pels, syncarpous, with three stigma-lobes, the anterior median lobe of which no longer func- Fig. 225.—Fruit of
. Elementary botany . Botany. 178 MONOCOTYLEDONS to twist so that the true anterior part of the flower occupies a posterior position. Thus the labellum is in reality a median posterior perianth-leaf, and all the other floral-leaves have their true positions reversed in the same manner. The flower consists thus of six perianth-leaves, the median posterior being the labellum; three gynandrous stamens, only one (median an- terior) of which is complete; a gynsecium composed of three car- pels, syncarpous, with three stigma-lobes, the anterior median lobe of which no longer func- Fig. 225.—Fruit of 4,' „„ „ „4.;^,„„ U,,*. Orchis inascKla : d= tions as a stigma, but subtending bract; j= is the rostellum (see s^="^s- fig. 224 for further details). The floral formula is P3-I-3 Al-1-2 G(3). Fruit (fig. 225) a capsule dehiscing along the dorsal sutures, and allowing the innumerable minute seeds to be dispersed by the wind. [In place of Orchis mascula, other British species of Orchis may be selected for examination, and the various points described above will be easily seen.]. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Groom, Percy, 1865-1931. London : G. Bell
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectbotany, bookyear1898
