DIFFERENT STRUCTURES OF CALYX. 19 



Sonchus, and Camellia ;,..squarrose, that is, composed of scales 

 divaricated on all sides, and spreading widely open, as in Car- 

 duus, Onopordum, and Con yza;... auctus, augmented; that is, 

 haying a series of distinct leaves, shorter than its own, that sur- 

 round its base externally, as in Coreopsis, Bidens, Crepis, and 

 Dianthus ;...or multiflorous, many flowered, that is, common to 

 many florets, as in Scabiosa, and in the plants of the class Syn- 

 genesia*. 



In respect to its parts, it is either monophyllous, of one leaf, as 

 in Datura and Primula ;...diphyllous, of tivo, asin FuMARiA, and 

 Fumaria Bulbosa \ . . Ariphyllous , of three, as in Tradescantia 

 tetr aphyllous, of four, as in Sagina, Epimedium, and in the plants 

 of the class Tetradynamia\\...pentaphyllous, of five, as in Cistus, 

 Adonis, and Cerbera ;..,hexaphyllous, of six, as in Berberis j... 

 or decaphyllous, of ten, as in Hibiscus. 



In respect to. its segments (which chiefly concern the mono- 

 phyllous calyx) it is either integer, tvhole, as in Genipa bifid* 

 divided in two segments, as in Utricularia ;...trifid, in three, as 

 in Alisma, and Cliffortia; .^.quadrifid, in four, as in Rhinan- 

 THus;...quinquefid, in five, as in Nicotian a ;.,*sexfid, in six, as 

 in Pavia ;...octofid, in eight, as in Tormentilla ^...decemfid, in 

 ten, as in Potentilla, and Fragaria ;...or duodecemfid, in twelve t 

 as in Lythrum. 



The variations of the calyx, in respect to Figure, will also in- 

 clude the terms respecting its equality, margin, and apex, or 

 top. 



In respect to figure, it is either globose, globe-shaped, as in 

 Cucubalus clavate, club-shaped, as in SiLENE;...rd/fex s bent 

 back, as in Asclepias ;..,or erect, upright, as in Primula, and 

 Nicotiana. 



In respect to equality, it is either equal as in Lychnis 

 qual, as in Helianthemum ; or with the segments alternately 

 shorter, as in Tormentilla, and Potentilla. 



In respect to its i?iargin, it is either integerrimus, very entire, as 



* . See Part II, Chap. XXH, f See Part II. Chap, XVIII. 



C2 



