226 



ORGANOGRAPHY. 



shaped {fii^. 446), conical, globose, &c. The application of these 

 will be shown when speaking of tlie corolla, in which similar 

 forms occur, and in which they are usually more evident. 



The tube of a monosepalous calyx or perianth sometimes 

 adheres more or less to the ovary, as in the Iris {fig. 629), Goose- 

 berry, Currant, Myrtle {fig. 448), in all the plants of the 



order Composite, and 

 in those alhed to it 

 {fiys. 449, 450, and 

 45*1). When this takes 

 ]ilace, the calyx is said 

 to be adherent or su- 

 jterior, because it ap- 

 pears to arise from the 

 summit of the ovary ; 

 the pistil in such a case 

 is said to be inferior. 

 When the calyx is free, 

 or quite distinct from 

 the sides of the ovary, 

 as in the Pimpernel 

 (fig. 443), WallfloAver, 

 Poppy, Buttercup, &c., 

 it is free or non-ad- 

 herent, or inferior ; and 

 the ovary is according- 

 ly superior. 



When the calyx or 

 perianth is thus ad- 

 herent to the ovary, the 

 limb becomes variously 

 modified: thus in the 

 Iris, Crocus, and Or- 

 chids, it is petaloid ; in 

 the Quince, foliaceous 

 (fig. 459); in the Sun- 

 iiower {Helianthus) 

 (fig. 451), and Cha- 

 momile, it is membra- 

 nous ; in the Madder 

 (liubia) (fig. 449), it 

 exists only in the form 

 ofacircular rim ; while 

 in the Chrysanthemum 

 it is altogether absent 

 (fig. 450). In the two 

 latter cases tlie calyx 

 lu many plants of the 



Fig. 448. Vertical section of the flower of the 

 Myrtle (Mijitus communis), cal. Tube of the 

 calyx adherent to the ovary o. 3. Stamens. 



Fig.^A^. Fig. i 50. Fig. Ab\. 



Fig. 449. Calyx of the Madder (I!iilmi\ ad- 

 herent to the ovary, with its limb reduced 

 to a mere rim. Fiy. 4.')0. One of tlie tu- 

 bular floretH of tlie Ox -eye (Chri/sa)i*li))iiuiii). 

 The calyx is completely united to the ovary 



and present* no appearance of a limb. 



Fio- 4.''>1. One of the florets of the Sunflower 

 (Heliaiil/iuK). Tlic limb of the adherent ca- 

 lyx is membranouD. 



is commonly described as obsolete. 



