@book {8649,
	title = {The genus Bromus (Gramineae) in Mexico and Central America},
	year = {1968},
	month = {1968///},
	pages = {469 - 519},
	publisher = {Publ. Mus. Michigan State Univ., Biol. Ser. 3},
	organization = {Publ. Mus. Michigan State Univ., Biol. Ser. 3},
	author = {T.R. Soderstrom and J.H. Beaman}
}
@article {8618,
	title = {Ornithopus},
	volume = {2},
	year = {1968},
	month = {1968///},
	author = {P.W. Ball}
}
@book {8600,
	title = {Gramineae},
	year = {1968},
	month = {1968///},
	pages = {588 - 588},
	publisher = {Ministry of Agriculture, Baghdad: VI},
	organization = {Ministry of Agriculture, Baghdad: VI},
	author = {N.L. Bor}
}
@article {8431,
	title = {The Bromus mollis aggregate in Britain},
	journal = {Watsonia},
	volume = {6},
	year = {1968},
	month = {1968///},
	pages = {327 - 344},
	author = {P.M. Smith}
}
@article {8252,
	title = {Alyssum (Cruciferae) introduced in North America},
	journal = {Rhodora},
	volume = {70},
	year = {1968},
	month = {1968///},
	pages = {298 - 300},
	author = {T.R. Dudley}
}
@article {8066,
	title = {Zur Einb{\"u}rgerung des Kleinen Liebesgrases (Eragrostis poaeoides P. B.) in Nordwestdeutschland},
	journal = {Mitteilungen der floristisch-soziologischen Arbeitsgemeinschaft},
	volume = {13},
	year = {1968},
	month = {1968///},
	pages = {10 - 13},
	author = {H. K{\"u}sel}
}
@article {8093,
	title = {Notice sur le vallon de Clairefontaine (province de Luxembourg)},
	journal = {Nat. Mosana},
	volume = {21},
	year = {1968},
	month = {1968///},
	pages = {73 - 80},
	author = {G.H. Parent}
}
@article {7859,
	title = {Overzicht der in Nederland gevonden adventieve Atriplex-soorten},
	journal = {Gorteria},
	volume = {4},
	year = {1968},
	month = {1968///},
	pages = {103 - 108},
	author = {R. van der Meijden}
}
@article {7657,
	title = {A synopsis of the European species of Cytisus and allied genera},
	journal = {Feddes Repert},
	volume = {79},
	year = {1968},
	month = {1968///},
	pages = {20 - 23},
	author = {V.H. Heywood}
}
@article {7796,
	title = {Die Gattung Bidens L. in der Tschechoslowakei},
	journal = {Folia Geobot. Phytotax},
	volume = {3},
	year = {1968},
	month = {1968///},
	pages = {65 - 98},
	author = {M. Lhotsk{\'a}}
}
@article {7396,
	title = {Les esp{\`e}ces du genre Bidens introduites en France. Rectifications et nouvelles donn{\'e}es},
	journal = {Cah. Nat., Bull. N. P},
	volume = {24},
	year = {1968},
	month = {1968///},
	pages = {53 - 58},
	author = {M. Debray}
}
@article {7215,
	title = {Rod Hesperis v _eskoslovensku. Biol. Pr. SAV},
	journal = {Bratislava},
	volume = {14},
	year = {1968},
	month = {1968///},
	pages = {1 - 54},
	author = {F. Dvo_{\'a}k}
}
@article {7188,
	title = {Studies in the North-West European species of Rorippa s.str. Symb},
	journal = {Bot. Upsal},
	volume = {19},
	year = {1968},
	month = {1968///},
	pages = {1 - 222},
	author = {B. Jonsell}
}
@article {7190,
	title = {Beitr{\"a}ge zur Systematik und Karyologie der Gattung Cicer, 1. Die europ{\"a}ischen Arten. {\"O}sterr},
	journal = {Bot. Z},
	volume = {115},
	year = {1968},
	month = {1968///},
	pages = {400 - 410},
	author = {D. Furnkranz}
}
@article {6926,
	title = {Palynotaxonomic study of the Phytolaccaceae},
	journal = {Ann. Missouri Bot. Gard},
	volume = {55},
	year = {1968},
	month = {1968///},
	pages = {294 - 364},
	author = {J.W. Nowicke}
}
