00395nam a22001337a 4500008004100000040005500041080001300096100001800109245004600127260004900173300001500222650001100237653001300248230530b        |||||||| |||| 00| 0 eng d  aNational Science LibrarycNational Science Library  a582 bK21 aBenson, Lyman  aPlant taxonomy: bMethods and principles   aNew York: bThe Ronald Press Company, c1962  aix, 494p.   aPlant   aFlowers