9 0 7 – 1 9 6 6 . ▁In ▁addition , ▁the ▁University ▁of ▁Neb r aska ▁has ▁digit ized ▁a ▁small ▁collection ▁of ▁letters ▁written ▁by ▁Clement s ▁to ▁her ▁family ▁about ▁a ▁ 1 9 1 1 ▁trip ▁she ▁and ▁Freder ic ▁took ▁to ▁Europe ▁to ▁particip ate ▁in ▁an ▁international ▁meeting ▁of ▁botan ists ▁and ▁e colog ists . ▁Now ▁available ▁online , ▁they ▁are ▁written ▁with ▁Clement s ' s ▁signature ▁eye ▁for ▁v ivid ▁detail ▁and ▁kn ack ▁for ▁story t elling . ▁ ▁Selected ▁publications ▁ ▁Books ▁Advent ures ▁in ▁E col ogy : ▁Half ▁a ▁Mill ion ▁Mil es : ▁From ▁M ud ▁to ▁Mac ad am ▁( 1 9 6 0 ) ▁Flow ers ▁of ▁Coast ▁and ▁Sierra ▁( 1 9 2 8 ) ▁F lower ▁Famil ies ▁and ▁An c est ors ▁( 1 9 2 8 , ▁with ▁Freder ic ▁Clement s ) ▁Flow ers ▁of ▁Mountain ▁and ▁P lain ▁( 1 9 1 6 ) ▁Rock y ▁Mountain ▁Flow ers ▁( 1 9 1 4 ; ▁with ▁Freder ic ▁Clement s ) ▁ ▁Other ▁writing ▁" The ▁F lower ▁Page ant ▁of ▁the ▁Mid west " ▁( 1 9 3 9 ; ▁with ▁Freder ic ▁Clement s ) ▁" The ▁Rel ation ▁of ▁Le af ▁Str ucture ▁to ▁Phys ical ▁Fact ors " ▁( 1 9 0 5 ; ▁Ph . D . ▁dis sert ation ) ▁( free ▁full ▁text ) ▁ ▁Col lections ▁C rypt og ama e ▁Form