306 TABULAR ARRANGEMENT OF ORGANS. 



II. Compound Organs. 



1. General Integument. 

 Cuticle or Pellicle,... 1 T, ., 



Stomata, !...} Epidermis. 



Hairs, Prickles or Aculei, Stings, Glands. 

 2. Nutritive Compound Organs. 



Spongioles,...\T> . 



Fibrils I 1 * 00 ' 8 ' 



Pith "I Rhizome. 



Medullary Sheath, 

 Heartwood or Duramen, 



Tuber. 

 Stem Runner. 



Sapwood or Alburnum, j- and Sucker. 



Medullary Rays or Plates, I Branches. Conn. 



Liber or Endophlceum, | Bulb. 



Cortical Layers or Epi- and Mesophloeum, ... J Thorn. 



Petiole, ) r - Phyllodia. 



Limb or Lamina, ../ Tendrils. 



Stipules. Ascidia. 



3. Reproductive Compound Organs. 

 Bract. Involucre. 



Sepals-Calyx, ) *" th 1 



Petals-Corolla, 



" 



Fovilla \ Pollen ) . , 1 



granules,...) grains, ) "*> Stamens, .................. j- Fl 



Filament,..) 



4. Composition of Ripe Fruit. 



Pericarp, ~) 

 Radicle, ...... ) 1 



Cotyledon,.. A Embryo, ............................... I _.. 



Plumule, ..... ) I Seed, ..... f ff 



Spermoderm, .......................... | 



Albumen or Perisperm, ............. J 



639. Plants may be said to be composed of numerous individuals, 

 each having a sort of independent existence, and all contributing to 

 the general growth of the compound individual formed by their union. 

 In the case of a tree there are a vast number of buds, each of which 

 is capable of being removed, and made to grow on another tree by 

 grafting ; and although each has thus a vitality of its own, it is never- 

 theless dependent on the general vitality of the tree, so long as it is 

 attached to it. The same thing is seen in Sertularian Zoophytes. Each 

 of the individuals forming a compound plant is called by Gaudichaud 

 a phyton (tpvTev, a plant), and in it he recognizes three parts or meri- 

 ihalli (^fgoj, a part, and tfaAAoj, a frond), the radicular inerithal corres- 

 ponding to the root, the cauline to the stem, and the foliar to the leaf. 



640. In the Acotyledonous plants, the embryo or spore consists of 



