48 



3c. Transverse section of fruit. 



(a) Run of calyx-tube. 



(b) Thickness of calyx. 



(c) Cell. 



(d) Placenta. 



3d. Longitudinal section of fruit. 

 (a) Rim of calyx-tube. 

 (6) Carpels. 



(c) Cell. 



(d) Placental column. 



3e. A deep transverse section of the fruit. 



(a) Rim of calyx-tube. 



(b) Thickness of calyx-tube. 



(c) Cell. 



(d) Placental column. 



(Plains north-east from New Norcia. Western Australia, Dr. A. Morrison. 



PLATE 251. 



The Disc (continued). 



E. erythrocorys F.v.M. Floral disc thick, dark green, fleshy, forming a raised wheel-like design 

 over the top of the ovary, from the circular portion four spoke-like ridges of the same thickness as the 

 circular portion project into the calyx-tube, midway between the calyx-teeth, and form supports for the 

 calyx lobes or the undulating staminal ring. 



1a. (a) Calyx-tube (showing ribs). 



(&) Tooth of the calyx (of which there are four) or rudimentary sepals. 



(c) Calyx-rim . 



(d) Undulating staminal ring attached to the rudimentary petals. 



(e) Ridge supporting the rudimentary petal. 



(/) Circular floral disc over the. top of the ovary. 



(g) One of the four trough-like nectaries outside the floral disc. 



(h) Top of ovary and nectary inside floral disc. The base of the style is also shown. 



1b. Longitudinal section of fruit. 



(a) Calyx-tube. 



(b) Thickness of calyx-tube. 



(c) Thick placental column. 



(</) Cell. 



lc. Transverse section of fruit. 



(a) Edge of the ribbed calyx-tube. 



(b) Thickness of the, calyx-tube. 



(c) Cell. 



(Dongarra, Western Australia, W. D. Campbell.) 



E. BaUeyana F.v.M. 

 2. Longitudinal section of fruit. 



(a) Calyx-tube. 



(b) Thickness of calyx-tube. 



(c) Carpels. 

 (J) Cell. 



(f) Placental column. 



(Eight-mile Plains, near Brisbane, F. M. Bailey.) 



