In the 621st article in the last fasciculus (IPoMcA Jalapa g. rosea) we 
omitted to add a further distinction between that supposed variety and 
« macrorhiza of the 342d article of the 4th volume of this Register; viz. 
that the tube is proportionably much shorter in 8. than in æ. Upon the 
whole we agree with Mr. Don in the opinion of the two being speciti- 
cally different. 
