§2$ THE STUOBTLUS AND SEEDS. 



Mulberry of China is indeed an intermediate genus 

 between the two, being as it were a Fig laid open, 

 but withont any p ilp in the common receptacle. 



7. Strohilus.f. 188, a Cone, is a Catkin hardened and 

 eniurgt d into a Seed-vessel, as in Finus^ the Fir. 



In the most perfect examples of this kind of fruit 

 the Seeds are closely sheltered by the scales as by a 

 capsule, of which the Fir, Cypress, Sec. are instances. 

 In the Birch and Alder they have a kind of capsule 

 besides, and in the Willow and Poplar a stalked bi- 

 valve capsule, snll more separate from the scales. The 

 Plane-tree, Platanus, the Liquidambar and the Comp- 

 foma, (112) have globular catkins, in which bristles 

 or tubercles supply the place of scales. See Gartner, 

 t. 90. 



6. Semi N A. The Seeds are the sole " end and aim" 

 of all the organs of fructification. Every other part 

 is, in some manner, subservient to the forming, per- 

 fecting, or dispersing of these. A seed consists of 

 several parts, some of which are more essential than 

 others, and of these I shall speak first. 



Embryo,/. 2, 4, the Embryo, or Germ, is the most 

 essential of all, to which the rest are wholly subservi- 

 ent, and withont which no seed is perfect, or capable 

 of vegetation, however complete in external appear- 

 ance. Linn us, after Csesalpinus, names it the Cor- 

 aulum, or Little Heart, and it is the point whence the 



en 2) [Sweet Fern.] 



