Organography of plants, especially of the archegoniatae and spermaphyta . Fig. 263. Tozzia alpina. Storage-kataphyll ofthe rhizome. To the left: seen from above. Tothe right: seen from below so as to exhibit therevolute margin of the leaf. A. cotyledons of the Pteridophyta require hardly any special descrip-tion. They are so like the primary leaves* that they really may be con-sidered as the first members of these. They are without exception arrested forms of foliage-leaves, andthey show this more clearlythan do the cotyledons ofSpermophyta, inasmuch asthey do not discharge th
Organography of plants, especially of the archegoniatae and spermaphyta . Fig. 263. Tozzia alpina. Storage-kataphyll ofthe rhizome. To the left: seen from above. Tothe right: seen from below so as to exhibit therevolute margin of the leaf. A. cotyledons of the Pteridophyta require hardly any special descrip-tion. They are so like the primary leaves* that they really may be con-sidered as the first members of these. They are without exception arrested forms of foliage-leaves, andthey show this more clearlythan do the cotyledons ofSpermophyta, inasmuch asthey do not discharge thefunction which is so com-mon in the Spermophytaof suctorial organs. This work is in the Pteridophyta taken on by the foot of the embryo. They also do not act as storage-organs. Their
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Keywords: ., bookcentury1900, bookdecade1900, bookido, booksubjectplantanatomy
