38 FORMS OF CALYX. 
sepals are more or less completely united. That portion 
of a calyx with united sepals which is below the teeth, 
or divisions, is called the tube of the calyx (f. 2. t.). 
If the divisions are large, they are called the limb of the 
calyx, but if they are small, then they are termed teeth. 
43. The principal forms of the calyx are these: in 
the Pink, and Sweet William, the calyx is tubular 
(f. 2.); in the Primrose, and Cowslip (f. 3.), it is 
tubular, but also angular : the calyx is called ventricose 
or inflated, as in the Catchily (f. 4.), in which it is 
narrow at the upper part, while the lower or middle 
tubular portion is much distended. The calyx is bell- 
shaped, when it gradually becomes wider from below 
upwards, as in the Thrift (f. 5.). In the Sage it is 
two lipped; its divisions resembling an upper and a 
lower lip. In the garden Nasturtium it is said to be 
spurred, ag one of the sepals is prolonged downwards 
into a tube (f. 7. s.). 
44, When a gamosepalous calyx has no teeth or 
divisions, it is called entire; when the margin is 
slightly divided it is said to be toothed, as in the Lilac, 
Pink, &c. when these divisions reach as far as the 
middle, the calyx is said to be cleft, two, three, or four 
cleft, &c. according to the number, as in the Henbane 
(f. 8.). But when the divisions are carried nearly to 
the base it is termed a partite calyx, as in the Foxglove. 
45. If the parts of the calyx, as in the Pink, Prim- 
rose, &c. are equal in size, it is called a regular calyx ; 
but if as in the garden Nasturtium (f. 7.), its segments 
or parts differ in size or form, it is then termed an 
irregular calyx. 
