50 FRUCTIFICATION 



The following terms are applied to the corolla. 

 1. Number of Petals. 



1. MONOPETALQUS COROLLA, (corolla monopetalaJ) 

 PI. 13, fig. 10. Consisting of only one petal or leaf. 

 Ex. Thorn-Apple, Datura stramonium. 



Tube, (tubus.) PI. is. fig. 10, a. The narrow, hol- 

 low part of a monopeialous corolla, By which it is fix- 

 ed to the receptacle. 



Limh, (linibus.) PL 13, fig. 10. 6. The border, or 

 tipper dilated part. 



Orifice, (jfrwo?) jaws or throat ; the opening of the 

 tube. 



Observation. DJPETALOUS, TRIPETJLIOUS, TETIIAPETALOUS, PEN- 

 TAPETALOITS, and HEXAPETALocs, are terms applied according" to the 

 number of petals. 



2. POL YPETALOUS, (polypetalo) consisting of many 

 petals. Ex. Water Lily, Nymphcea. 



Observation. Linnaeus uses this term in opposition to the mo- 

 nopetalous corolla. By other writers it is usualty put down for 

 a flower consisting of more than six petals. Mar tyn. 



Claw, (unguis.) PL 13, fig. 15, a. Is the narrow 

 part of the petal of a polypetalous corolla, by which 

 it is attached to the receptacle. 



Border, (lamina.) PL IS, fig. 15, b. The upper 

 spreading part. 



Observation. This corresponds to the Limb of a monopetalous 

 corolla, and the Claw, to the Tube. 



2. Proportion of the Petals. 



1. REGULAR* (regularis) when it consists of petals 

 equal in size and similar in form. Ex. Rose. 



2. IRREGULAR, (irregularis) when it consists of ir- 

 regular and dissimilar petals, which are generally ac- 

 companied with a nectary. Ex. Larkspur and Violet. 



S. EQUAL, ((zqualis) see regular. 

 4. UNEQUAL, (ffueguaH*) when some segments are 

 smaller than others, Ex. Veronica. 



