Report on the scientific results of the voyage of "Scotia" during the years 1902, 1903 and 1904, under the leadership of William SBruce . FIG. 7.—Plumularia lagenifera, var. septifera. (a) Portion of stem and hydroclade. x from complicated hydrorhiza] growth with scattered nematotheco?. (6) Base of stem strengthening of the walls. Should such a supposition be well founded, the thickeningsin the hydrorhizal tubes could have little systematic value. Frequent nematophores,similar in structure to those on the remainder of the colony, arise from the hydrorhizaltubes at irregular inte
Report on the scientific results of the voyage of "Scotia" during the years 1902, 1903 and 1904, under the leadership of William SBruce . FIG. 7.—Plumularia lagenifera, var. septifera. (a) Portion of stem and hydroclade. x from complicated hydrorhiza] growth with scattered nematotheco?. (6) Base of stem strengthening of the walls. Should such a supposition be well founded, the thickeningsin the hydrorhizal tubes could have little systematic value. Frequent nematophores,similar in structure to those on the remainder of the colony, arise from the hydrorhizaltubes at irregular intervals, but always near their borders. The differences between this form and P. lagenifera in size, in habit, in the intensityof the internal septa, in the absence of a nematophore on each stem internode, and inpossessing chitinous thickenings in the hydrorhiza, I do not consider sufficient to warrantthe formation of a new species. Measurements :— Stem internode, length ,, breadth Hydroclade thecate internodes, length „ athecate „ ,, Hydrotheca, depth diameter at margin 0-26 mm. 0-14 „ 0-24 „ 0-05 „ 0-066-0-090
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Keywords: ., bookauthorbrucewil, bookcentury1900, bookdecade1910, bookyear1912
