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SCIENTIFIC AGEICULTUKE. 



April, 1921 



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Fig. II. Alfalfa flower: front view, A, B, C. 

 st: standard; w: wing petal; k: keel; s. c: staniinal colunni; an: antlicr:i and stigma; 



T. s.: Timothy stem. 



Fig. III. A Alfalfa flower: side view. 



B Position of stamens before and after tripping. 

 C Stamens in position for emasculation. 



ly conversant with the general structure 

 and mechanism of the flowers of both 

 parents he wishes to hybridize. This can 

 best be obtained by carefully examining 

 and studying the flowers as a whole ; then 

 carefully dissecting and examining each 

 part separately. 



Principal Parts of the Alfalfa Flower. 



(See Fig. II. Fig. III.) 



Calyx. — The calyx is situated at the 

 base of the flower; is greenish in color; 

 and divided up into five pointed sepals. 



Corolla. — The corolla arises from the 

 inner portion of the calyx and is made 

 up of five petals. 



1. One large and fairly upright petal 

 known as the standard or banner. (St.) 



2. Two smaller petals, one on each 

 side of the standard, known as the wings. 

 (W.) 



3. Two inferior petals, somewhat 

 loosely held together by the joining of 

 their upper and lower edges, form a closed 

 boat-shaped structure known as the keel. 



(K.) 



