|
| << previous | next >> |
Journal description
All volumes of the corresponding journal
All issues of the corresponding volume
All articles of the corresponding issues
Details for article 12 of 13 found articles
| Title: |
The life history of Turnerella pennyi (Harv.) Schmitz |
| Author: |
South, G. Robin Hooper, Robert G. Irvine, Linda M. |
| Appeared in: |
European journal of phycology |
| Paging: | Volume 7 (1972) nr. 2 pages 221-233 |
| Year: |
1972-07-15 |
| Contents: |
The life-history and phenology of T. pennyi, regarded as the only species of Turnerella in the north Atlantic Ocean, are described on the basis of culture, cytology and field investigations. In Newfoundland and Labrador, heteromorphic phases occur: tetraspores from an encrusting tetrasporophyte resembling Cruoria arctica/rosea give rise to a similar perennial sterile phase from which the foliose T. pennyi phase arises directly. These foliose plants are dioecious gametophytes. The male gametophyte, reported for the first time, bears spreading spermatangial sori over most of its surface. Old cystocarpic plants may exhibit in situ germination of carpospores. Chromosome counts show that n = 18-20; 2n = 36-40. The indications are that the life-history of the species is similar in other parts of its range, although the longevity of the foliose stage may vary with geographical location and depth. Regeneration of old loose-lying plants readily occurs. |
| Publisher: |
Taylor & Francis |
| Source file: |
Elektronische Wetenschappelijke Tijdschriften |
Details for article 12 of 13 found articles
| << previous | next >> |