fV/1 



c 



D 



P 



G t H 



Fig. 3. — Cnicus aruensis. Floral development: A, receptacle almost evenly convex; B, 

 appearance of papilla? to become flowers ; C, a single papilla more advanced, show- 

 ing beginning of corolla; D, corolla more prominent: E, stamens distinguishable; 

 F, carpels and pappus (calyx) evident; G, carpels beginning to form cavity of 

 ovary; //. ovule readily distinguishable; /, ovule showing megaspore mother-cell 

 and single thick intesrument: b, bract of involucre; c, corolla; s, stamen; o, carpel; 

 p, pappus (calyx). A-H x 50 ; / x 100. 



17 



