. A manual of botany. Botany. MOEPHOLOGY OF EEPRODUCTIVE OEGANS 153 the observer to distinguish the primary from the secondary divisions. When a gamosepalous calyx is entire, the number of sepals can then be ascertained by the venation, as the principal veins from which the others diverge generally oorre- FiG. 287. Fig. 288. Fig. Fi'i. 287. Partite inferior calyx of the Pimpernel (Ana^jaUU). Fiff. 2S8. IJreeolate calyx of the Heabane (Ilyoscyamus). Fkt. 289. Bilabmte calyx of the Dead-nettle (La?iiium j. Fig. 290. spond to the midribs of the component sepals. In a gamo- sepalous calyx in
. A manual of botany. Botany. MOEPHOLOGY OF EEPRODUCTIVE OEGANS 153 the observer to distinguish the primary from the secondary divisions. When a gamosepalous calyx is entire, the number of sepals can then be ascertained by the venation, as the principal veins from which the others diverge generally oorre- FiG. 287. Fig. 288. Fig. Fi'i. 287. Partite inferior calyx of the Pimpernel (Ana^jaUU). Fiff. 2S8. IJreeolate calyx of the Heabane (Ilyoscyamus). Fkt. 289. Bilabmte calyx of the Dead-nettle (La?iiium j. Fig. 290. spond to the midribs of the component sepals. In a gamo- sepalous calyx in which the union exists in a marked degree, the part where the sepals are united is called the tube, the free portion the limb, and the orifice of the tube the throat ot faux {figs. 288 and 289). If the union between the sepals is unequal, or the parts are of different sizes, or of irre- gular figures or forms, the calyx is said to be irregular (fi^. 289) ; if, on the con- trary, the parts are alike in figure and form, of the same size, and united so as to form a symmetrical body, it is regular (fig. 288). Some varieties of the irre- gular and also of the re- gular calyx have received special names. Thus in the Dead-nettle (fig. 289), the irregular calyx is said to be labiate, bilabiate, or lipped, because the five sepals of which it is composed are united in such a manner as to form two lips. Of the regular forms of the gamosepalous calyx a number are distinguished under the names of tubular, bell-shaped or. 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 Green, J. Reynolds (Joseph Reynolds), 1848-1914. London, J. & A. Churchill
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