Description: Cells about as long as broad or slightly longer than broad, deeply constricted, with a linear, closed sinus. Semicells in frontal view trapezoid with slightly convex lateral sides anb broadly rounded angles, in apical view rhomboid with broadly rounded angles. cell wall in the centre of the semicell furnished with alternating, decussating rows of granules and scrobicles, granules and scrobiculae being about equal in size. cell wall at the sides of the semicell furnished with marginal and itnramarginal teeth. Cell wall between central and marginal ornamentation with an unsculptured zone. Cell length 33–38um, cell breadth 31–37um, cell thickness circa 20um, breadth of isthmus 7–8um. (Coesel & Dingley 2005)

State distribution in Australia, based on available literature

In cell size, rough cell shape and its dentate outline C. spinoscrobiculosum resembels C. spinuliferum W. et G.S.West, but the cell wall onamentation in the centre of the semicell is essentially different. under the light microscope, the alternating, decussating rows of granules and scrobicles are only to be distinguished under optimal conditions (lacking of any cell content). (Coesel & Dingley 2005)

Return to