
 
		about one half of the length of the tube, and by the bracteae  
 being as long as the pedicels, and pointed ;  likewise, I would  
 add, by the flowers  being  more  crowded  and  considerably  
 larger,  the calyx, peduncle,  and  legume  more  hairy,  and  
 the  pedicel of the legume rarely exceeding the tube of the  
 calyx, while, in the other, it equals, or even projects beyond,  
 the teeth.  Still,  however,  it  can  only  be  regarded  as  a  
 variety,  passing gradually into the British and Swiss  plant  
 through  the  Lapland  and Rocky Mountain forms.  It appears, 
   then,  either  that  DeCandolle  had  inadvertently  
 referred to Astragalus alpinus as a synonyme for his  JPhaca  
 astragalina, or else,  if they are the sa me,—which seems from  
 the diffusion of the plant, not otherwise mentioned by him,  
 to be  almost certain,—that he had, upon too slight an examination, 
   followed  Allioni  in  removing it from  the genus  
 Astragalus. 
 Perhaps  other  difficulties  regarding  this  species  have  
 arisen from accidental  errors in  the  references  of DeCandolle. 
   He refers to Linn.  Sp.  PI.  1070,  both under Phaca  
 astragalina and  Oxytropis montana,  while  he  at  the  same  
 time points out the distinctions between  these plants :  and  
 he refers  under Phaca  astragalina,  to Astragalus montanus  
 of  Jacquin,  Enumeratio  Stirpium  Vind.  264,  and  of  his  
 Flora Austriaca, p.  131  (rather, vol. 2.  p. 42.  t.  167).  But  
 Jacquin  considers  the  Astragalus  montanus  of  both  his  
 works to be the same as the plant so called by Linnaeus,  and  
 this  Linnaeus declares  to  be different from Astragalus alpinus. 
   No  one who can estimate  the labour  or  admire  the  
 talent which enabled this great botanist to carry forward his  
 science with  such giant  strides,  will think  harshly for one  
 instant of such oversights.—R obert G raham. 
 Edinburgh,  Sept.  1831.