Chromosome Studies in the Cyperaceae, With Special Reference to Scirpus

DEVELOPMENT OF SPORES AND GAMETOPHYTES IN CERTAIN NEW WORLD SPECIES OF SALVIA

“…In Alnus corylus, according to Woodworth (1929), chromosomes extend from or between the cells in close contact. In Scirpus, as reported by Hicks (1928), the nucleolus extends a pointed process between the cells, something after the order of Salvia apiana. In Scirpus also the chromosomes may connect across the cells by filamentous extensions.…”

Genetic Evidence of Introgressive Invasion of the Globally Imperiled Scirpus longii by the Weedy Scirpus cyperinus (Cyperaceae) in Nova Scotia

“…As stresses and disturbances change with development, the composition of plant communities will shift to favor plants with more ruderal strategies such as the woolgrass, Scirpus cyperinus, at the expense of slower-growing, and/or more stress-tolerant plants such as S. longii (Grime 1977; Thompson and Jones 1999). Given the genetic demonstration of hybridization between Scirpus species in Europe (De Greef and Triest 1999) and the report of hybrids of S. longii and S. cyperinus in the field in New Jersey and Massachusetts (Schuyler 1963a(Schuyler , 1967 and in the cytogenetic laboratory (Hicks 1928;Schuyler 1967), the conservation imperative for a genetic study of Nova Scotia populations of S. longii was compelling.…”

Chromosome Studies in Cyperaceae Iii-Iv

“…Bastardizing. -Bastardizing as a probable cause of aneuploidy in Cyperacecc has been suggested on several occasions, especially advocated by HAKANSSON (1928) and HICKS (1928HICKS ( , 1929. Its speciescreating role is limited by the sterility of most species hybrids.…”

“…Some more general aspects of the problems presented by the chromosomes in Cypcracccr I have published in 19:32 and 1934 (on autopolyploidy and general interpretations), as well as in 1936 and 1937 (on chromosome associations). In the meantime, studies of the chromosomes of Cuperacece have been carried out by several other investigators, chiefly by HAKANSSON (1928HAKANSSON ( , 1929, HICKS (1928HICKS ( , 1929, and TANAKA (1937 a and b). Scattered data on the same topic are, further, to be found in works by NAKAJIMA (1937), BUCHER (1938), WULFF (1939), as well as by AVDULOV, MORINAGA, PIECH and others (conf', TISCHLER, 1927-38).…”