Home / Greens / Filamentous / Branched / Draparnaldia

Home button

Click on images for larger format

Name derivation:

Classification:

Draparnaldia (Roth, 1813);  8 of 26 species descriptions are currently accepted taxonomically

Order: Chaetophorales, Family: Chaetophoraceae,

 

Morphology:

Embedded in soft mucilagenous envelope, consist of erect, branched filaments. Main axes of large barrel-shaped, cylindrical or rectangular cells, attached basally by rhizoids. Cells of main axes each with large chloroplast.( Hazen) Laterally on main axes arise fascicles of secondary branches intercalary cells of which contain single laminate chloroplast covering almost entire wall. Some cells are bluntly pointed or bear long multicellular hair. Secondary branches very divided, often tufted in appearance.  Cells uninucleate. Reproductive cells produced in secondary branches.

Similar genera:

 

 

Habitat:

Freshwater species

 

Citing Phycokey:

Baker, A.L. et al.  .  Phycokey -- an image based key to Algae (PS Protista), Cyanobacteria, and other aquatic objects. University of New Hampshire Center for Freshwater Biology. http://cfb.unh.edu/phycokey/phycokey.htm

 

References:

Bory de Saint-Vincent, J.B.G.M.  1808).  Mémoire sur le genre Draparnaldia, de la famille des Conferves (Voyez la planche 35)..Annales du Muséum d'Histoire Naturelle 12: 399-409, pls 35.

Guiry, M.D. and G.M. Guiry  2014.  AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 19 December 2012.

Hazen, T.E. (1902). The Ulothricaceae and Chaetophoraceae of the United States.Memoirs of the Torrey Botanical Club 11: 135-250.