. The Gardener's monthly and horticulturist. underground stem of the fern, Rhizomethe botanist calls it, goes on perhaps for an age,making new cells out of the old ones, and leav-ing the dead ones behind; and just so do thecells of a tree. The last years cells die soonafter the new circle of wood is formed, and allthe circles of wood which form the trunk of atree, with the exception of the few circles nearthe circumference, are as dead as are those be-hind the tip of a fern rhizome. If there were alateral as well as a longitudinal growth; if thestem of a fern could go on thickening from yearto
. The Gardener's monthly and horticulturist. underground stem of the fern, Rhizomethe botanist calls it, goes on perhaps for an age,making new cells out of the old ones, and leav-ing the dead ones behind; and just so do thecells of a tree. The last years cells die soonafter the new circle of wood is formed, and allthe circles of wood which form the trunk of atree, with the exception of the few circles nearthe circumference, are as dead as are those be-hind the tip of a fern rhizome. If there were alateral as well as a longitudinal growth; if thestem of a fern could go on thickening from yearto year, there might not be so much differencebetween a Selaginella and a Pine; for with theidentity of powers in this respect, there mightcome differences in the morphological lawswhich result in the other distinct characters. 216 THE GARDENERS MONTHLY [July. There are for all many correspondences in | length of several inches, with nothing on it butcharacter between Lycopodiums and Coniferae. i scales; and the fruit in Coniferje, known as a. 1^. ^ J ^^>:-. > \%m^ S s W ^^^ :/yy^Z-~:^
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Keywords: ., bookcentury18, bookdecade1870, booksubjectgardening, bookyear1876
