34 STRUCTURAL BOTANY. 



98. Calyx inferior or free, ovary superior or free, are all 

 phrases of the same import as calyx hypogynous. Between the 

 two conditions, calyx superior and calyx inferior, there are nu- 

 merous gradations, of which one only is defined, to wit, calyx half- 

 superior, as exemplified in the Mock-orange and Saxifrage (53). 



. a e ue e m . rees n e egree o oeson (figs. 45-48). 



93. How in Grape, etc.? 94. Define adherent. 95. Use of the word fupOffyncusf 9ti. 

 Periffmouef 97. Ejdgynous? Two equivalent phrases. 98. Calyx half-superior. Ex- 

 plaiu figs. 49-54. 



CHAPTER VI. 



FORMS OF THE 1'ERIANTH. 



99. The innumerable forms of the perianth, whether calyx or 

 corolla, or both, are first to be distinguished as POLYPETALOUS 

 or GAMOP ETA LOUS, and secondly, us regular or irregular. The 

 pOLYPETALOus-m/M/r forms may be referred to the four types 

 represented in the drawings below, and described as follows. 



'55 



Forms of rorollcu. 55, Cheiranthus (Stock). 56, Silene regia (Scarlet Catchfly). 57, I'yrus coroB&nr 

 58, Amaryllis (Atamasco Lily). 



100. First, Cruciform (crucis, of a cross) or cross-shaped 

 corollas consist of four long-clawed petals, placed at right angU>> 

 to each other, as in Mustard, Wall-flower (55). 2d, Caryop/i.y'. 



