PHYTOLOGY. 203 



ther with foliage, because they are the prototypes of 

 these three organs. 



1571. The ring of their capsules corresponds to the 

 midrib of the leaf. In the preceding order the capsule 

 was only an upsprung stalk ; but it is here an upsprung 

 and unfolded leaf, the prototype of the bud-develop- 

 ment. 



1572. The fern-capsules, namely, the true seeds, are 

 an accumulation of leaf-buds at the extremity of the 

 fascicle of spiral vessels The indusium is the upraised 

 epidermis, which opens in a spathose manner ; it conse- 

 quently stands in the signification perhaps of the floral 

 spathe or involucrum. They correspond to the Fuci. 



1573. Fourth order. Floral ferns Fluviales. If 

 the tracheal plants be exalted unto the flower, male 

 organs cannot fail in at once beginning to develop. I 

 place therefore in this order the Naiadacese with very 

 arrested blossoms, and simply stamina without calyx and 

 corolla. The spiral vessels are rather doubtful. 



1574. Fifth order. Fruit-ferns Conifer fg. Tree 

 with imperfectly-formed spiral vessels, stamina without 

 corollae, seeds without ovarium ; thus agreeing with the 

 Cryptogamia even to the stamina; they form likewise 

 sixteen families. (Vid. Tab. B.) 



SEXUAL PLANTS. 



1575. So soon as the three tissues separate completely 

 from each other into bark, liber, and wood, while the tra- 

 cheae are arranged circularly into several clusters or groups, 

 does the antagonism of these organs also make its appear- 

 ance, and exhibit itself as sex in the floral organs. 



1576. This separation can only be attained through the 

 influence of the air and light, whereby the sexual organs 

 are conditionated. These plants have therefore the seve- 

 ral organs of the trunk and blossom. 



1577. Anthers can be wanting to none of the following 

 plants. Now, the anthers are leaf-buds; the leaf-formation 

 must be therefore developed also in their antagonism, or 

 in the seed. The leaves of the seed, however, are called 



