210 NOTES ON JUNCUS HOLOSCFL^NU% R.Br., AND J. PBISMATOCARPUS, R.Br.; AND ON CERTAIN OTHER NEW SOUTH WALES PLANTS. By Edwin Ciieel. In his ' Prodromus ' (p. 259) R. Brown described two species of Juncus under the names of J. holoschcenus and J. prismato-carpus, which he distinguished chiefly by the following characters : J. holoschcenus. J. pvUimatocarpus. Stems terete, leaves nearly iS^e^^is compressed, Zea-uesalter-terete, both articulate. Panicle nate, upright [verticalibus]. terminal, with one leafy bract Panicle terminal, spreading, at its base articulated like the Flowers numerous, in globular leaves. Flowers numerous, in clusters; perianth-segments sub-globular clusters; perianth-seg-ulate. Stamens 3. Capsules ments acute. Stamens 6. Cap-prismatic, longer than the peri-sules prismatic, as long as the anth-segments. Seeds oh^cuvelj perianth-segments. Seeds striate, striate. Robert Brown had seen both species under natural conditions. From the study of herbarium material Bentham came to the con-clusion that R. Brown's distinctions could not be upheld (B.Fl. vii., 131); he therefore united the species and adopted the name J. prismatocarpus. It appears to me, however, that these plants are quite distinct; for they may readily be distinguished in the field by their different habit, as well as by some very important structural differences. J. holoschtfinus is a more dwarf plant than J. prismatocarpus, producing erect, nearly terete stems from a creeping perennial rhizome. The leaves are slender and semiterete, of a dark green colour and quite hollow inside except for transverse partitions of
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