L YSIM0SCE P A.S. 



283 



producing one plant only ; in Ferns, Mosses, etc. there is not 

 even as indication of an approach to defined number. 



Chara bears, I think, upon the question of the so called 

 Rhizantheous embryos, it being apparent that from a collection 

 of amylaceous or albumenis granules a young plant may origi- 

 nate. 



Lysimoscepas may be regarded perhaps as representing 

 Eq^isetaceae ? 



There is no very great difference between Nitella and Chara : 

 for the young branches of the latter are certainly simple. 

 Nitellae therefore are simple by an arrest of development. 



There are few plants in which there is such a marked ana- 

 logy between the female, and the axis, each consists of two 

 membranes, the inner being green, containing granules, the 5 

 stigmata are to be considered as 5 branches : for they are 

 divided from the tubes by a septum. 



Perhaps after all, the females are nothing but buds ! 



There ought perhaps to be some differences in the struc- 

 ture of Chara and Nitella, viewed in this light, Nitella ought 

 to have tubes. 



1 Lysimoscepas Voigtii Gr. PI. LXIV. 



1. Portion of Plant magnified. 



2. Apex of a branch. 



3. Inner lining of globuline, this shrivels up when the 

 plant is dying. 



4. 4. 4. 4. 4. Illustrate the situation of the reproduc- 

 tive organs. 



5. Male organ ? 6. Two triangular scales, to shew that 

 they are only compound towards the circumference. 



7. Filament, magnified 200. 



8. Do. 500 times. 8 a, is a younger one, the structure is 

 obviously a single series of cells, each with a nucleus of 

 grume ! the cells are exceedingly fine, and perhaps the septa 

 are not definable. 



9. 10. Female organs. 



