918 NOTES FROM THE B )TANIC GARDENS, NO. IX., 



2. Flowers large. 

 3. Flowers with acute angles, crowded. Fruit 



scarcely longer than the perianth 14. J. holoHcluenus. 



3*. Flowers with obtuse angles, squarrose. 

 Fruit conspicuously longer than the peri- 

 anth 15. J. Fockii. 



2*. Flowers, Hower-clusters, and fruits conspi- 

 cuously shorter 16. J. lamjiocanms. 



13. J. prismatocaiyus, R.Br., Prod. 259 (1810); B.Fl. vii. 131. 

 A very variable perennial. Stems erect, 20 to 50 cm. high, 



from nearly terete to two-edged compressed. Leaf-sheath rounded 

 or acute at the back, the lamina mostly much compressed, indis- 

 tinctly septate and pluri-tubulose, i.e., the leaf has longitudinal 

 partitions besides the indistinct cross-partitions (rarely uni- 

 tubulose and perfectly septate). Inflorescence compound to 

 decompound, the globular clusters few- to many-flowered (6 to 

 rarely 12). Flowers 3 to 5 mm. long, mostly crowded, nearly 

 always green. Perianth segments linear-lanceolate, subulate, 

 mostly of equal length. Stamens 3, about half as long as the 

 perianth segments; anthers oblong. Fruit as long as the perianth 

 or more or less longer, triquetrous, conical or prismatic, shining, 

 mostly from rust-coloured to straw-coloured. — All over Australia, 

 New Zealand, Southern and Eastern Asia. 



14. J. hoJoschwrtus, R.Br., Prod. 295 (1810). 



A perennial with rigid erect stems 20 to 40 cm. high, terete or 

 somewhat compressed. Lamina of the leaves perfectly septate 

 and uni-tubulose, i.e., without longitudinal partitions, rigid, com- 

 pressed, 1| to 2| mm. diam. Inflorescence rigid, mostly umbel- 

 like, rarely anthelate, with 4 to 8 flower-clusters, each of about 

 15 to 20 crowded flowers. Flowers 3| to 4^ mm. long, sharp 

 angled. Perianth segments of equal length, lanceolate, pointed, 

 the inner ones with membranous margins, green or greenish- 

 straw-coloured with a brown point. Stamens 6. Fruit as long 

 as the perianth or somewhat longer, prismatic or somewhat ovate- 

 prismatic, shortly or very shortly mucronate, shining, rust- or 

 straw-coloured. — Australia and New Zealand. 



