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8. S. prolifer, ''Rottb. Descr. et Ic.'' 55, t. 17, f. 2.—Stems numerous, tufted, 1–2 ft. high or more, rather stout, striate when dry, leafless except a large purplish or purplish-black sheath at the base. Heads large, ½–1 in. diam., terminal, solitary, of very many (10–30) densely crowded spikelets, often proliferous and putting out 1 or several usually long branches terminating in a much smaller head of spikelets; bract shorter than the head, obtuse. Spikelets long and narrow, ⅕–½ in. long, linear or linear-oblong, cylindrical, obtuse, many-flowered. Glumes ovate, obtuse, concave, chestnutbrown with a paler keel and margins. Hypogynous bristles wanting. Stamens 3. Style-branches 3, long, linear. Nut rather small, less than half the length of the glume, elliptic-ovoid, acute, acutely trigonous, smooth, pale yellowish-brown or almost white.—''Benth. Fl. Austral.'' vii. 330. Isolepis prolifer, ''R. Br. Prodr.'' 223. I. globosa, ''Buch. in Trans. N.Z. Inst.'' iii. (1871) 211.

9. S. nodosus, ''Rottb. Descr. et Ic.'' 52, t. 8, f. 3.—Rhizome short, stout, woody, creeping, ¼ in. diam. or more. Stems very numerous, closely packed, 1–3 ft. high, erect, rigid, terete or slightly compressed. Leaves wanting except 2 or 3 sheathing scales at the base of the stems. Head solitary, globose, brown, ⅓–⅔ in. diam., of very numerous densely crowded spikelets; bract ½–1½ in. long, rigid, erect, continuous with the stem, so that the head appears lateral. Spikelets ovoid, ⅕–⅙ in. long, many-flowered. Glumes broadly ovate, obtuse or obscurely mucronate, concave. Hypogynous bristles wanting. Stamens 3. Style-branches 3, linear. Nut less than ½ the length of the glume, obovoid, obtusely trigonous, the flat face next the glume, pale-brown, smooth and polished.—''Benth. Fl. Austral.'' vii. 331. Isolepis nodosa, R. Br.