Organography of plants, especially of the archegoniatae and spermaphyta . every leaf-whorl at most two leaves,which stand opposite one another, have an axillary shoot. These axillant leaveswere considered by de Candolle ^ to be the true leaves, the others were regardedas stipules which have become leaf-like and which have undergone a * chorisisif there be more than six leaves present in the whorl, or a concrescence if therebe less than six. The history of development supports this interpretation. InFig. 244 an axillary shoot of the leafy? is shown in surface-view. It has twoleaves b^ and ,,
Organography of plants, especially of the archegoniatae and spermaphyta . every leaf-whorl at most two leaves,which stand opposite one another, have an axillary shoot. These axillant leaveswere considered by de Candolle ^ to be the true leaves, the others were regardedas stipules which have become leaf-like and which have undergone a * chorisisif there be more than six leaves present in the whorl, or a concrescence if therebe less than six. The history of development supports this interpretation. InFig. 244 an axillary shoot of the leafy? is shown in surface-view. It has twoleaves b^ and ,, each of which has a primordium of an axillary shoot A, and each has two stipules S^Si and S^ At thevegetative point the primordium of a leaf-whorl appears as a ring-wall whose growthat two opposite points is taking place andthese points mark the apices of the twochief leaves of the whorl. The stipulesappear after the primordium of the leavesand they arise from the margin of the ring-like primordium between the foliage-leavesand then gradually grow out into a form.
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Keywords: ., bookcentury1900, bookdecade1900, bookido, booksubjectplantanatomy
