Species: |
Bonnemaisonia asparagoides |
Description: |
Gametophyte with feathery fronds, much branched, to 250 mm long, main axis cylindrical or slightly compressed, to 3 mm wide, from small discoid base. Branches alternate, distichous, covered with alternating, spinelike corticated ramuli about 2 mm long in one plane. Tetrasporophyte (Hymenoclonium-phase) a minute prostrate disc 2-4 mm diam. Key characteristics Short, almost spiny branchlets in two rows; specimens also degenerate quick unless kept in water and in a cool place. Original publication: Agardh, C.A. (1822). Species algarum rite cognitae, cum synonymis, differentiis specificis et descriptionibus succinctis. Volumen primum pars posterior. pp. [v-vi], 169-398. Lundae [Lund]: ex officina Berlingiana.
Download PDF Similar species B. hamifera is less common and more seasonal (March to June, inclusive, and has distinctive and unique crozier-shaped modified branches that hook on to other algae; Naccaria wiggii is even less common and has branchlet that grow radially on the axes. |
References |
Braune, W. (2008). Meeresalgen. Ein Farbbildführer zu den verbreiteten benthischen Grün- Braun- und Rotalgen der Weltmeere. pp. [1]-596, 266 pls. Ruggell: A.R.G. Gantner Verlag. Salvador Soler, N., Gómez Garreta, A., Ribera Siguan, M.A. (2009). Somatic meiosis in the life history of Bonnemaisonia asparagoides and Bonnemaisonia clavata (Bonnemaisoniales, Rhodophyta) from the Iberian peninsula. European Journal of Phycology 44(3): 381-393. Salvador, A., Gómez Garreta, A., Ribers Siguan, M.A. (2008). Characterization of two frequently confused species, Bonnemaisonia asparagoides and Bonnemaisonia clavata (Bonnemaisoniales, Rhodophyta), on the basis of morphological and molecular evidence. Phycologia 47: 177- |
Habitat: |
The gametophytes are summer annuals (May-September) found on rock, very low intertidal or subtidal (to 30 m), widely distributed, frequent. Sporophyte subtidal, on shells, stones, etc., very rare. |
Type information: |
Type species This is the type species (lectotype) of the genus Bonnemaisonia Basionym Fucus asparagoides Woodward Type information Type locality: Norfolk, England (Woodward 1794). Lectotype: original illustration (Woodward 1794: pl. 6). |