NOTULiE AD PLANTAS ASIATICAS. 



PART JL 



ON THE HIGHER 



acotul^nous pants. 



General Remarks. 



1. Acotyledonous Plants are devisible into Sexual, and 

 Asexual. 



The Sexual, which comprehend all except Fungi, Algse, and 

 Lichens, are devisible into those with, and those without 

 Pistills. 



The developement of the sexes is in opposition to that 

 of vegetation, sexes being most developed in Musci and Hepa- 

 ticae : and least developed in Ferns and Lycopodinese ? 



So far as ferns go, this is not very extraordinary ; for the 

 frond is not a leaf, and if the true leaves are the raaieuta, 

 ferns are very slightly foliaceous. 



Besides, there are no necessary relations between develope- 

 ment of the sexual, and the foliaceous organs from which they 

 are derived ; witness Grantia, etc. 



The Pistilligerous families are — Musci, Hepaticse, and Azolla. 



The Epistilli gerous — are Ferns, Isoets, Anthoceros, Mar- 

 silea, and Lycopodinea? ? 



The Pistilla when they exist, contain an ovulum : (a single 

 pendulous cell) which in Mosses becomes the terminal celi 

 of the seta, as well as in Jungermannia and the Vaginulate 

 Hepaticse. In the E vaginulate, it becomes (?) the membrane 

 inside the capsule, containing the seeds. 



2 L 



