Transactions of the Royal Society of New Zealand . cations,edges smooth. End view circular. This plant is remarkable for its pecuharhour-glass shape. I have found no description of anything like it in suchbooks as have been accessible to me. If it prove a new species I should pro-pose the name of C. clepshydra. Fig 7. Staurastrum, sp. ? Edges of frond smooth, segments united below,divaricating. Upper and outer borders concave, uniting at an acute angle,inner slightly convex, lower rounded. On the upper concave border arethree hyaline processes with smooth sides and flattened ends. At junctiono
Transactions of the Royal Society of New Zealand . cations,edges smooth. End view circular. This plant is remarkable for its pecuharhour-glass shape. I have found no description of anything like it in suchbooks as have been accessible to me. If it prove a new species I should pro-pose the name of C. clepshydra. Fig 7. Staurastrum, sp. ? Edges of frond smooth, segments united below,divaricating. Upper and outer borders concave, uniting at an acute angle,inner slightly convex, lower rounded. On the upper concave border arethree hyaline processes with smooth sides and flattened ends. At junctionof outer and lower borders is one process similar to the upper ones butcurved slightly outwards. This little plant is unlike anything in Ralfs—it might be an unusual form of S. Iceve, but in the latter the processes areforked, in the former not. Fig. 8. Closterium. In this genus I have not found any specimen that could notbe referred to Ralfs. »» >> * Trans. Inst., vol. xiii,, art. xxxviii., pp. 297—317. TRAMS. NZINSTITOTLVOLMPIM^. ^X^OO 11 X^cf^
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