Meiosis in Diploid and Triploid Hemerocalus

Sporogenesis and Embryo Sac Development of Hesperocallis and Leucocrinum in Relation to Their Systematic Position

“…The basic chromosome number of each of these four is different, viz. : Hosia, .r = 30 (Whitaker, 1934); H emerocallis, .r = II (Takenaka, 1929;Dark, 1932;Stout, 1932); Leucocrinum, .r = 14; and Hesperocallis, .r = 24.…”

The Cytology of <i>Lachenalia</i>

“…The somatic divisions of this plant appear to show that the three sets of chromosomes are morphologically identical, while at meiosis a very high percentage of trivalents is formed. This variety is evidently an autotriploid which arose from an unreduced gamete, and has since that observed in Primula sinensis (Darlington 1931) or Henzerocallis (Dark 1932), where complete chromosome pairing was never observed. In Datura (Belling , 1927) and Canna (Belling, 1921) on the other hand, complete pairing is the rule rather than the exception.…”

“…In Datura (Belling , 1927) and Canna (Belling, 1921) on the other hand, complete pairing is the rule rather than the exception. Dark (1932) Table 2 chiasmata start to unravel (Fig. 17).…”

On the Natural Hybrid Population of Hemerocallis

“…Triploid plants of H. fz~lva var. kwanso* occur in nature (Talienaka 1929(Talienaka , 1952Dark 1932), but have not been observed in Holrkaido. Artificial hybrids have been inade between different TIemerocallis species without ally difficulty (Talrenalra 1952).…”