Flora Unveiled

468 i Flora Unveiled Hedwig correctly surmised, grew and gave rise to the stalk and capsule that later emerged from the archegon ...

Sex and the Single Cryptogam j 469 469 469 [l] ively imagination, most likely accompanied by a faulty microscope and incorrect p ...

470 i Flora Unveiled Schleiden’s Asexualist Theory Matthias Jacob Schleiden regarded the sexual theory of plants as an egregious ...

Sex and the Single Cryptogam j 471 471 471 animals, most diffentiated plant cells are potentially totipotent— that is, they can ...

472 i Flora Unveiled that the pollen secreted an oily substance, the “essence” of the plant. He confessed igno- rance as to what ...

Sex and the Single Cryptogam j 473 473 473 was not new with Schleiden. Several contemporary asexualists, including Schleiden’s u ...

474 i Flora Unveiled also indisputable that cryptogams had an additional stage based on the asexual production of spores. The pr ...

Sex and the Single Cryptogam j 475 475 475 Hedwig, J.  (1782), Fundamentum Historiae Naturalis Muscorum Frondosorum; (1784) The ...

476 i Flora Unveiled Maheshwari, P. (1950), An Introduction to Embryology of Angiosperms. McGraw- Hill. The mechanism of spore ...

i 477 477 477 “In the garden!” he said, wondering at himself. “In the garden! But the door is locked and the key is buried deep. ...

478 i Flora Unveiled valuable particulars, shedding new light on the most diverse problems of the cell- theory and of morphology ...

Flora’s Secret Gardens j 479 479 479 unprepossessing prothallus— a completely separate individual— that constitutes the sexual g ...

480 i Flora Unveiled By 1847, at the age of twenty- three, Hofmeister had begun the series of studies that was to become the fou ...

Flora’s Secret Gardens j 481 481 481 archegonium. Like the moss sporophyte, the fern sporophyte is initially dependent on the ga ...

482 i Flora Unveiled Heterospory: The Clue that Unified a Kingdom Hofmeister noted that the gametophyte generations of various f ...

Flora’s Secret Gardens j 483 483 483 possess two types of gametophytes: a male gametophyte containing antheridia, and a female g ...

484 i Flora Unveiled are, in fact, derived from two different types of spores, as in the heterosporous cryptogams, flowering pla ...

Flora’s Secret Gardens j 485 485 485 Figure 18.5 shows the pistil with ovules (megasporangia) inside the ovary, all of which are ...

486 i Flora Unveiled In angiosperms, he demonstrated that the inner tissues of the ovule give rise to a single functional megasp ...

487 487 Figure 18.6 The alternation of generations in flowering plants. The pale blue area indicates the sporophytic stages and ...