IXTRODUCTOny LESSONS. 



3G. A Perfect Florcer may consist of jiistils and stamens only, and of 

 these the styles and filaments are not essential. 



37. Cohesion of Floral Organs. When sepals cohere or grow fast to 

 each other (Figs. 48- 



51) the calyx is Gamo- 

 sepalous. So, also, 

 the corolla may be 

 Gamopetalous. When 

 stamens cohere they 

 are Monadelphous if 

 in one set, Diadel- 

 j)]ious if in two sets 

 (usually and 1), etc. 

 Cohering pistils (car- 

 jiels) form a Com- 

 pound Piatil. The de- 

 grees of cohesion in 

 c;ilyx and corolla is 

 described, as in leaves, 

 by the terms entire, 

 cleft or lobed and ^q ^„,„pr' %, %, it^- -n *i t^^f i , i 



•^ 48. Isuil of Eschsehnltzia, with the mitriform calyx removed and 



narted Thus* Bind- ^'^own above. 49. open fluwer of till! same, with two of the petals 



' ■ " ' removed, one of these below with t!ie Kt-imens adheriii;? to the claw. 



AVeed (Fi"". 50) has an ^^' F'^^'frandl-jif of (^onvolvnlnsarvensis; aboveisthecoruUasiJllt 



^ °' / ' down, displaying Ave uneqnal stamens. 



entire corolla limb; Zauschneria (Fig. 51) 

 has a 4-lobed calyx; Nemophila has a 

 5-parted or deeply 5-lobed corolla, etc. 

 If the flower has a limb (border) dis- 

 tinct from the tube, these terms apply to 

 the limb. 



38. Adliesion of Floral Organs. The 

 calyx may grow fast to the ovary (Fig. 51), 

 then it is said to be Superior (ovary in- 

 ferior). The corolla and stamens fre- 

 cpiently grow on the calyx, as in Fuch- 

 sia, Strawberry- , etc.; then they are said 



