LRCT. VI.] THE STEM. FIGURE. 275 



Of this variety of the angled stem there are, 

 also, five sub-varieties : 



1. Triangular (triangular Is), (fig. u, i). 



2. Four-angled (quadrangularis) , (fig. u, 



2) ; 



3. Five-angled (quinquangularis) , (fig. 

 U) 3). 



4. Six-angled (soxangularis) , (fig. u, 4). 



5. Many-angled (multangularis) *f~. In 

 many-angled stems the angles are 

 not always so acute as in the other 

 sub-varieties. 



7. Three-sided (triqueter*), (fig. *, i), when 

 tliere are three flat sides forming acute angles ; 

 as in Carex acuta. 



e. Angular (angulosus), implies that the angles 

 are either very obscure, and the stem, con- 

 sequently, can scarcely be placed in either 

 of the foregoing arrangements; or that the 

 angles are variable in number. There are two 

 varieties of the angular stem, which have pe- 

 culiar appellations ; viz. a. Furrowed (sulcatus) 

 (fig. *, 5), when the stem is longitudinally in- 

 dented with deep and rather broad hollows, 

 like those of a fluted column || ; as in Common 



t " Triangularis, quadrangularis, quinquangularis, multangu- 

 " tarts, ex numero angulorum prominentium." Phil. Bot. 82. 15. 



J " Triquetrus, latera tria plana obtinet." Ibid. 82. 14. 



|| " Sulcatus sulcis excavatis latis profundis exaratus." Ibid. 

 82. 16. 



'T 2 



