INTKODUCTOliY LESSONS. 



X\j 



A perfect Flower may consist of pistils and stamens only, and of 

 these the styles and filaments are not essential. 



Cohesion of Floral Organs. AYhen sepals cohere or grow fast tu 

 each other (Figs. 48— 



\ii> 



51) the calyx is Gamo- 

 .sepalous. So, also, 

 the corolla may be 

 Gamopetalous. When 

 stamens cohere they 

 are Monadetplious if 

 in one set, Diadel- 

 2)Jious if in two sets 

 (usually 9 and 1), etc. 

 Cohering pistils (car- 

 pels) form a Com- 

 pound Fislil. The de- 

 grees of cohesion in 

 calyx and corolla is 

 described, as in leaves, 

 by the terms entire, 



r'Ipff nr Inhprl onrl ^^ ^^ ^^ 



^v ,j V yjL Luucu ciLiu. ^g Burl of Esrhseholtzia, -wit^i the niitriform calyx removed ar.d 



parted Thus* ]Bind- • ^^"^^ "^ ^^"^*^^" ^^' ^^l'^" flower of th^ same, with two of the petals 

 ' ' ' ' removed, one of these below witli tlie stnmens adheriut,' to the claw. 



AVeed (Fi<^. 50) has an ^^" ^^'^'^vP'''*"*^l''''t^^f ''f^volvnlnsarveusis; above is the crollasplU 

 ^ *3' ^ down, displayiiiji live Tiuequal 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 aj^ply to 

 the limb. 



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- 

 <iuently grow on the calyx, as in Fuch- 

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



