4 FRUCTIFICATION OF THE CRYPTOGAMIjK. 



part of the cuticle of each side. But, what i6 most extra* 

 ordinary, this skin, instead of being without, is in the in- 

 terior ; and,. if you lay the dulse (or any other of this kind) 

 on a glass, and scrape it very carefully on both sides with a 

 knife, you will find all the exterior rubbed off, and nothing 

 will remain but the almost invisible skin. This roughness 

 I take to be the bark, it is most regularly placed in 

 diamonds, (see Plate I, fig. 1, dulse unscraped) ; and an- 

 swers well to the same matter, either within or without the 

 transparent skin, in almost all the cryptogamian plants of 

 every different genus. We trace it in the roughness at the 

 exterior of the lichen, under the clear skin in the thick fuci, 

 Formation of and so on to most of the class. But in the thicker fuci the 



the interior of transparent skin is on the exterior; and when it is taken 

 tue thick lucu 



off, and also the thin rough bark, the consistence of the 



matter underneath differs greatly from that of the thin 



fucus. It is so glutinous, so capable of distention, that, if 



drawn out or pressed, after being laid in fresh water, it may 



be reduced to what appears its original formation ; that is 



into cylinders or strings, formed as at fig. 2. They cannot 



properly be called vessels, for they certainly appear not to 



convey any liquid ; but to be a glutinous mass, in this 



* shape. On examination of all the different fuci I could 



Only uvo ves- procure, I could find only these two vessels in each plant : 



sels inthe 1st. The line of life which passes to the pistil, and afterward 



ties the seeds together : 2d. The wood vessels, which run 



directly to the male, and convey not only its peculiar juice, 



but the spiral wire that produces its motion. To make this 



Rules forfind- plain, to enable any person to discover immediately both the 



ing the ves- vessels, and the stamen and pistil, I shall give this easy 



se!s, and the , • .. ,...,, ... J 



stamen and tule : When the line or lite appears in the interior of a plant 



pistil. alone, and no wood vessels are found, it is certain, that the 



male is in a different plant. When both line of life, and 



wood vessels, are found joined together, you may be sure to 



find the fructification in the same flower. And when both 



vessels are found, but separate, it is always a sign, that the 



stamen and pistil are in different parts of the same plant. 



This law holds good in all the cryptogamian plants, nor 



have I ever found it vary. 



MistV:? ror- 1 must. now apologize for a mistake I have made in my 



rccted, former 



