5/4 



MARSILEACEiE. 



The spores are highly developed, analogous to those of some 

 Khasya Hepaticae. They appear to have 3 spores, and close- 

 ly resemble pollen. It is remarkable that in some, in their 

 earlier stages before the division of the parent cell, I have ob- 

 served emission of the contents of the young spore, but not 

 of the parent spores. 



The glandular cordate mass is the male, notwithstanding its 

 permanence, and the quick withering of the suffulting part of 

 the leaf. 



I want observations on its stages, and on its origin. It will 

 be curious if the lamina suffulting* it, which is not lunate, be 

 an indusium. 



One thing is certain, that in this species the contents of the 

 female are one and the same, notwithstanding the temporary 

 difference which only affects the size and sphericity and con- 

 tents, the internal organization of the coats being the same. 



The striae are the result (?) of the ternary or quaternary 

 approximation. 



Lastly the leaves have stomata on their inner flat face. En- 

 dlicher says they have none but let him consult De Candolles 

 plate, etc. in the Organographies as regards I. lacustris.] 



The cells contain a few globular bodies of considerable size 

 consisting of a spherical hyaline sac containing 3 young spores 

 nearly perfectly formed, the spiculae of the angles being 

 visible. 



It is remarkable that immersion in water causes the more 

 or less partial emission of the granular nucleus from the pores 

 so that the number exeeds 3, and is often upwards of 6. 



In this extensible nucleus, a nucellar is generally observable, 

 this is seen sometimes in the protruded part ; sometimes in 

 the spore ; mostly the lax cells of the surface of the septa have 

 disappeared but the lining is still fuscous ; under 1-500 the mass 

 looks commencing to be cellular, it has also plenty of granu- 

 les, iodine does not act on the cell, but colours fuscous both 

 spore and extensible stuff.] 



[The protrusion of the contents of the sporiform nuclei 

 appears constant. 



