A morphological study of some members of the genus Pallavicinia . at we have been able to find is that of P. decipiens. In thisspecies Farmer [i] gives a brief description and figures of early stagesof the embryo, which seems to differ a good deal from that of P. Zollin-geri and P. radiculosa, and to more nearly resemble that of Morkia hiber-nica. (See Leitgeb [i], Pt. Ill, PL vi.) While the sections of the embryos that were obtained were more orless badly shrunken, still the most important points in their developmentcould be made out pretty well. Most of the younger stages found wereof P. Zol
A morphological study of some members of the genus Pallavicinia . at we have been able to find is that of P. decipiens. In thisspecies Farmer [i] gives a brief description and figures of early stagesof the embryo, which seems to differ a good deal from that of P. Zollin-geri and P. radiculosa, and to more nearly resemble that of Morkia hiber-nica. (See Leitgeb [i], Pt. Ill, PL vi.) While the sections of the embryos that were obtained were more orless badly shrunken, still the most important points in their developmentcould be made out pretty well. Most of the younger stages found wereof P. Zollingeri, but a few were also found in P. radiculosa and P. Levieriwhich agreed closely with the former species. The youngest specimen that was examined consisted of two nearlyequal cells, separated by a transverse wall (Fig. 16, A). The next divi-sion probably is also transverse, and arises in the upper cell, dividing theembryo into three superimposed cells, as is the case in P. decipiens. Inthe next older stage that was found, the embryo showed two large basal.
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Keywords: ., bookauthorcampbelldouglashought, bookcentury1900, bookdecade1910
