IT must be evident to those who heard my paper on “Adnation in Coniferæ” at the Chicago meeting of the Association that the observations there detailed could scarcely be accounted for, if the ...

American Journal of Botany, Vol. 59, No. 10 (Nov. - Dec., 1972), pp. 1000-1010 (11 pages) In Cordyline terminalis negatively geotropic leafy shoots and positively geotropic rhizomes develop from ...

The small stem of the common onion, Allium cepa, possesses a primary thickening meristem (PTM) and shows extensive primary thickening, or growth in width, during development. The growth of the ...