DESCRIPTIVE NOMENCLATURE. 267 



PAGE 



three: namely, Store-Houses, Refuges, 

 and Ruins 39 



III. STORE-HOUSES contain the food of the 

 future plant 39 



IV. REFUGES shelter the future plant itself 



for a time 40 



V. Ruins form a basis for the growth of 



the future plant in its proper order . . 41 

 Root-Stocks, the accumulation of such ruins 



in a vital order 42 



General questions relating to the office and 



chemical power of roots 43 



The nomenclature of Roots will not be ex- 

 tended, in Proserpina, beyond the five simple 

 terms here given : though the ordinary botanical 

 ones— corm, bulb, tuber, etc.— will be severally 

 explained in connection with the plants which 

 they specially characterize. 



II. The Stem. 



Derivation of word 152 



The channel of communication between leaf 



and root 170 



In a perfect plant it consists of three parts: 

 I. The Stem (Stemma) proper. — A growing 

 or advancing shoot which sustains all 

 the other organs of the plant 151 



