Text-book of botany, morphological and physiological . ofmeister, Entwickelung iindBau dcr Vegctationsorgane der Fame, p. 607): the thicker lines are sections of the first three division-walls bywhich the embryo is divided into four cells. The lower anterior cell forn)s, according to Hofmeister, the leaf 5 atthe apex of the stem st; from the lower posterior cell is produced the root, stu being its apical cell and wh itsroot-cap. In Pteris, the footyis formed from the two upper of the first four cells. In Aspidiian Filix-mas, thesame author states that these processes diverge still further from
Text-book of botany, morphological and physiological . ofmeister, Entwickelung iindBau dcr Vegctationsorgane der Fame, p. 607): the thicker lines are sections of the first three division-walls bywhich the embryo is divided into four cells. The lower anterior cell forn)s, according to Hofmeister, the leaf 5 atthe apex of the stem st; from the lower posterior cell is produced the root, stu being its apical cell and wh itsroot-cap. In Pteris, the footyis formed from the two upper of the first four cells. In Aspidiian Filix-mas, thesame author states that these processes diverge still further from those in the Rhizocarps. Hofmeister gives to the first four cells of Pieris aquilifia, which the reader maycompare with the corresponding development of Salvinia and Marsilea; but it mustnot be forgotten that the embryo of the Fern lies, so to speak, on its back. Al-though it is impossible in this place to go into a more minute description, it is,still necessary at least to point out the resemblance between the embryo of Fernsand that of
Size: 2500px × 1000px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1870, booksubjectbotany, bookyear1875
