Kyllinga.] CLII. CYPERACEJil. 1755 



dense, ovate, obtuse but often narrower than in II. vanef/ata, obscurely keeled, 

 striate, bordered by a narrow searious margin sometimes almost obsolete. 

 Hypogynous bristles about 6. Style-branches 2 or 3. Nut broad, biconvex, 

 striate and pitted between the strife, the beak or base of the style flat-conical, 

 short, with a raised annular base. — Bceckel. in Linnoea, xxxvi. 472 ; F. v. M. 

 Fragm, viii. 239. 



Hab.: Eookhampton, Bmmnan, O'Shanesy. 



Widely spread over fhe tropical regions both of the New and the Old Worlil. 



5. H. (E.) tetraquetra(4-angled), jN^'t'fs ; Kunth, Enum. ii. 150; Benth. It. 

 Atistr. vii. 294. Stems blender, acutely 4-angled, usually about 1ft. high. Inner 

 sheathing scale appressed and truncate at the orifice with a minute erect point on 

 one side as in H. acuta. Spikelet oblong-lanceolate, 3 to 4 lines long, 1 to 1^^ 

 line diameter. Glumes rather more obtuse than in H. acuta, with a green 

 centre, brown sides, and narrow searious margins. Hypogynous bristles about 6, 

 as long as the nut. Style branches 8. Nut obovoid, 8-ribbed, smooth, the 

 corneal beak or base of the style soiilewhat flattened. — Bceckel. in Linniea, xxxvi. 

 447 ; F. V. M. Fragm. viii. 239. 



Hab.; Sunnybank, Field Nutiiralist.i. 

 Also in the East Indies. ■ 



6. S. cylindrostachys (."^pike eylindric), Bwckd. in Flma, 1875, 106 ; 

 Benth. Fl. Austr. vii. 294. Stems terete, rather stout, mostly, above 1ft. high 

 when full grown. Inner sheathing scale closely appressed, truncate at the orifice 

 with an erect point of i to 1 J, line as in II. acuta. Spikelet oblong-cylindrical, 

 obtuse, 6 to 9 lines long when fully out, scarcely 2 lines diameter, very pales 

 coloured. Glumes very numerous and closely imbricate, ovate-oblong, very 

 obtuse, searious with thin hyaline margins, the green central nerve more or less 

 distinct, otherwi.=;e nerveless, scarcely coloured or faintly tinged with brown, very' 

 deciduous as in II. capitata. Hypogynous bristles 6 to 8, mostly longer than the 

 nut. Style branches 3 or rarely 2. Nut broadly obovate, usually much flattened,' 

 the beak or base of the style broadly conical and flat. 



Hab.: Wide and Moreton Bays, Leichhardt ; Eookhampton, Thozet ; Boyre Biver, Harimann ; 

 Castle Creek, Btmce ; Stanthorpe and many other southern localities. 



7. H. (E.) acuta (acute), B. Br. Prod. 224; Benth. II. Amtr. vii. 294. 

 Rhizome creeping. Stems rather slender, terete, from 6 or Sin. to lift, high or 

 rather more. Sheathing scale appressed and horizontally truncate at the orifice, 

 the edge often dark coloured, with a small erect point or rudimentary lamina ^ to' 

 1 line long, inserted usually on one side, immediately below the margin. 

 Spikelet linear-oblong or lanceolate, rather acute, from under ^in. to nearly lin. 

 long. Glumes obtuse or almost acute, the dorsal nerve or keel more or less 

 prominent, the sides brown with pale more or less searious margins. Hypogynous 

 bristles 3 to 7, usually 5 or 6, longer or shorter than the nut. Style branches 

 usually 3. Nut obovoid or almost orbicular, very convex on both sides. 

 — H. (E.) mvtronulata, Nees. in Ann. Hist. ser. i. vi. 46 ; Bceckel. in Linnsea, 

 xxxvi. 466; H. (E.) gracilis, Hook. f. Fl. Tasm. ii. 85, not of K. Br.; 

 H. paht.itris, F. v. M. Fragm. viii. 240, not of R. Br ; Scirpus acutus and S. 

 tener, Spreng. Syst. i., 203, 201. 



Hab.; Endeavour Biver, Banks and Solaiider ; Plains ot the Condamine, Leiclthardt ; 

 Gracemere, O'Shahesy; Stanthorpe. 



Var. pallens. Spikelet of a very pale brown, the glumes almost searious, but the shape of the 

 spikelet, the number and shape of the glumes and other characters, those ot H. acuta not of 

 Jff. cylindrottachys. — Bowen Downs, Birch ; and probably Eookhampton, Amalia Dietrich. 



The typical lorni of H. acuta occurs in New Zealand. 



