2l6 THE FORAGE AND FIBER CROPS IN AMERICA 



Stems: height ; diameter one inch from base ; erect; 



spreading; decumbent; trailing. 



Stems: round; square: hairy; smooth: stoloniferous; not stoloniferous. 



Branches: none; few; many. 



Inflorescence: at end of leaf -bearing stem or branch; springing from axil 

 of leaf. 



Inflorescence: raceme; umbel; capitulum. 



Flowers upon maturity: reflexed; not reflexed. 



Calyx: length of anterior tooth compared with other teeth 



Petals: united; free: white; red; pink; purple; blue; yellow: persistent; 

 not persistent. 



255. IDENTIFICATION OF LEGUMINOUS FORAGE PLANTS. Select and preserve 

 the whole fruit of a number of the leguminous forage plants and of those 



MCROPYLE POINT 



HILUM 

 RADICLE -,/^ff IM'ilF V.^_ xCOTYLEDONS 



OUTLINE OF 

 SEED COAT 



Sweet clover (Mclilotus alba) seed showing relation of the embryo to the seed coat 



Enlarged twenty-five times 



(Redrawn from Roberts) 



leguminous plants which are likely to occur as impurities or adulterants. 

 The following are suggested: red clover, alsike clover, white clover, alfalfa, 

 black medic, sweet clover, hairy vetch. The following outline suggests 

 qualities which might be observed. Where adjectives used do not apply, others 

 may be used. The practicum on beans should precede this practicum. 



Calyx: no. of teeth ; relative length of inferior tooth 



Calyx tube: hairy; smooth; no. of ribs...: 



Corolla: no. of petals ; free; united; persistent: easily removed: 



smooth; hairy. 



Pod: roundish; kidney-shaped; elongated: straight; twisted: opens longi- 

 tudinally; opens transversely. 



Style: persistent; deciduous. 



Seeds per pod: extreme nos ; usual no 



Threshing: seeds easily removed; seeds difficult to remove; reason. 



Seed: viewed from two largest diameters: round; oval; elliptical; kidney- 

 shaped. 



Seed: viewed from two smallest diameters: round; oval; flat. 



