Species:

Stictyosiphon tortilis(Gobi) Reinke

Langcella brunskjegg in Norwegian Bokmål

Classification

The species Stictyosiphon tortilis belongs to:

Photos

Photos of Stictyosiphon tortilis (8):

  • Photo of Stictyosiphon tortilis
  • Photo of Stictyosiphon tortilis
  • Photo of Stictyosiphon tortilis
  • Photo of Stictyosiphon tortilis
  • Photo of Stictyosiphon tortilis
  • Photo of Stictyosiphon tortilis
  • Photo of Stictyosiphon tortilis
  • Photo of Stictyosiphon tortilis

1 of 8: Habit

Photo of Stictyosiphon tortilis
A specimen around 20 cm long  Photo: © Kjersti SjøtunTerms of use

Note: The species is recorded in the sublittoral along the coast of Norway, but is not very common. Thallus may be up to 1 m long, and axes have irregular or opposite branching. Basal parts of main axes are often hollow. Growing shoots end in a hair. The inner axial cells are substantially longer than wide in main axes, and can normally not easily be seen through the outer, angular cortex cells.

2 of 8: Branching

Photo of Stictyosiphon tortilis
Branching from main axis Photo: © Kjersti SjøtunTerms of use

3 of 8: Hairs

Photo of Stictyosiphon tortilis
Shoot ending in a hair Photo: © Kjersti SjøtunTerms of use

4 of 8: Longitudal section showing large elongated axial cells.

Photo of Stictyosiphon tortilis
Photo: © Vivian HusaTerms of use

5 of 8: Cross-section showing four axial cells.

Photo of Stictyosiphon tortilis
Photo: © Vivian HusaTerms of use

6 of 8: Main axis

Photo of Stictyosiphon tortilis
Close-up of main axis, segments of long axial cells are visible under the angular cortex cells Photo: © Kjersti SjøtunTerms of use

7 of 8: Cortication at main axis and side-branches.

Photo of Stictyosiphon tortilis

8 of 8: Cortical cells

Photo of Stictyosiphon tortilis
Photo: © Vivian HusaTerms of use

Closest relatives

Other species in the same genus (Stictyosiphon):