Allozyme variability and phylogenetic relationships in the cultivated potato (Solanum tuberosum) and related species José L. OliverJ. M. Martínez Zapater OriginalPaper Pages: 1 - 18
Notes on the systematics of the Amazonian genusGuatteriella (Annonaceae) Wilfried MorawetzPaul Maas OriginalPaper Pages: 19 - 23
Polytene chromosomes in cultured pea roots (Pisum, Fabaceae) Eeva ThermanToshio Murashige OriginalPaper Pages: 25 - 33
Wirtelschnallen bei homo- und heterothallischenCoprinus-Arten (Agaricales) Charlotte Thielke OriginalPaper Pages: 35 - 49
Polyphyletic allopolyploid origin ofRanunculus cantoniensis (4x) fromR. silerifolius (2x) ×R. chinensis (2x) Hiroshi Okada OriginalPaper Pages: 89 - 102
Spiniferomonas septispina andS. enigmata, two new algal species confusing the distinction betweenSpiniferomonas andChrysosphaerella (Chrysophyceae) K. H. Nicholls OriginalPaper Pages: 103 - 117
Embryology and breeding systems inCrocus (Iridaceae)—a study in causes of chromosome variation Paula J. RudallS. J. OwensA. Y. Kenton OriginalPaper Pages: 119 - 134
Über die Bedeutung der Cytologie für die Algentaxonomie, dargestellt anTrebouxia (Chlorellales, Chlorophyceae) H. EttlG. Gärtner OriginalPaper Pages: 135 - 147
Genetic components of heterocarpy inMicroseris hybrid B87 (Asteraceae, Lactuceae) K. BachmannK. L. ChambersH. J. Price OriginalPaper Pages: 149 - 164
Über einen intrazellulären Parasiten beiCryptomonas (Cryptophyceae), II. Hanuš Ettl Kurze Mitteilung Pages: 165 - 167