Recueil des travaux botaniques néerlandais . Fig Fig. 24. The first root resembles stnkmgly that of B. lunaria (7).Unfortunately, the sections were net quite médian, thereforethe aplcal cell could not be made out. In another médian 353 section of the first root, however, the initiais were not quiteclear. Lan g (22) has shown that the number of root initiais isnot so much dépendent on the âge as it is on the bulk of theroots. Campbell (9), however, found always single cotylédon is not a scale-hke rudiment as in B. lunaria,but a more or less developed structure. The narrow apic
Recueil des travaux botaniques néerlandais . Fig Fig. 24. The first root resembles stnkmgly that of B. lunaria (7).Unfortunately, the sections were net quite médian, thereforethe aplcal cell could not be made out. In another médian 353 section of the first root, however, the initiais were not quiteclear. Lan g (22) has shown that the number of root initiais isnot so much dépendent on the âge as it is on the bulk of theroots. Campbell (9), however, found always single cotylédon is not a scale-hke rudiment as in B. lunaria,but a more or less developed structure. The narrow apical cellis already plainly visible. A single vascular strand connectsroot and leaf. The position of the embryo m the prothallus is, as far ascould be seen, quite the same as that in B. lunaria. The only im-portant différence between this form and B. simplex up to thisstage is the large size of the first leaf in the latter. No trace ofa vascular bundle appears m the cotylédon at this stage. Theinitiais of the cotylédon could not be traced with
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectplants, bookyear1904
