1770 CLII. CYPEEACE^. [Smw*'i- 



offcen filiform, and when thicker much less so than in S. prolifer, from scarcely 

 above lin. to near 1ft. long, with usually a single short leaf, sometimes reduced 

 to a sheath with a small point. Spikelets 8 to 6 or more together in a terminal 

 cluster, the involucral bracts shorter or one more frequently subulate and longer' 

 than the cluster, rarely attaining fin. Spikelets ovate-oblong, rather acute, ra,rely 

 above 2 lines long, usually brown. Glumes concave, ovate, obtuse or the'scarcely 

 prominent keel produced into a short point, the sides striate with dark streaks or 

 slightly prominent nerves or quite smooth, rarely pale-coloured throughout, and 

 then often dotted. No hypogynous bristles. Stamens always 1 only and very 

 frequently the filament persistent at the back of the nut. Style -branches S ; 

 rarely 2. Nut rather broad, equally and prominently 3-angled or more or less- 

 flattened, smooth, the terminal point minute. — Isolepis hmn^ata- nnd, I. propinqua,- 

 E. Br. Prod. 222 ; I. prolifera. Hook. f. Fl. Tasm. ii. 87i t. 144,- not of E. Br. ;, 



I. conspcrsa, Nees in Endl. Prod. PI. Norf. 23 ; I. GuadkluniiUana, Kunth, 

 Enum. ii. 201 ; I. Unillei and I. Gtinnii, Steud. Syn. Glum. ii. 94 ; Sdrpvs 

 tonspersus (partly),./?. UrriJlci, S. costaHn (partly), and S. Gcmdkhaiidii, Boeckel. 

 in Linnrea, xxxvi. 505, 510, 511. 



Hab.: Brisbane River, Moreton Bay, F. v. Mueller ; towards Wallangftrra also. 



6. S. prolifer (proliferous), Eotth. Descr. et. Ic. PL 55, «. 17, /. 2; Bentli.. 

 Fl. Atistr. vii. 330. Stems tufted or shortly creeping at the base, from a few 

 inches to above 1ft. long, weak, but much thicker than in &'. inundatim, leafless 

 except a sheathing scale oblique at the orifice. Spikelets several, often many, in 

 in a terminal cluster or head which is often proliferous emitting 1 or more short 

 branches of ^ to 2in., terminating in a small cluster of spikelets. Involucral 

 bracts short and glume-like, concealed under the cluster. Spikelets oblong, 2 to 

 4 lines long, pale-coloured. Glumes ovate, obtuse, scarcely striate, but marked 

 with longitudinal brown lines. No hypogynous bristles. Stamens usually if not 

 always 3. Style-branches 3. Nut short, prominently 3-angled, smooth or 

 minutely granular, the terminal point very small. — Boeckel. in Linnasa, xxxvi* 

 692 ; Isolepis prolifem, E. Br. Prod. 228 ; Kunth, Enum. ii. 201. 

 Hab.: Towards Wallangarra. 



6. S. supinus (prostrate, with face turned upward), I.imu; Backel. in- 

 Linnaa, xxxvi. 699, exd.var. fi and y. — Stems tufted, decumbent or erect, striate^ 

 from 2 or Sin. to above 1ft. long, leafless except a rather long sheathing scale- 

 often produced into a short narrow lamina. Spikelets 2 to G together in a lateral- 

 cluster, the outer involucral bract erect and continuous with the stem often 2in.. 

 long and only slightly dilated at the base. Spikelets oblong, 2 to 4 lines long. 

 Glumes prominently keeledj. acute or the keel produced into a conspicuous point,. 

 loosely imbricated and generally very deciduous. Hypogynous bristles none or 

 very short and few. Stamens 2 or 3. Style-branches 3. Nut broa^ 

 prominently 8-angled, or rarely biconvex, prominently marked with transverse 

 wrinkles.— Eeichb. Ic. Fl. Germ. t. 302 ; Isolepis supma, E. Br. Prod. 221 • 

 Kunth, Enum. ii. 196; F. v. M. Fragm. ix. 6. 



Hab.: Keppel Bay, Ii. Brown ; Brisbane Eiver, Bailey. 



Widely spread over the tropical and temperate regions of the Old World, more rare in thfr 

 bouthern states of North America. 



7. S. articulatus (jointed), I.inn. : Ececkd. in Linnaa, xxxvi. '^02 ; Bmth. 



II. Atistr. vii. 331. Stems terete, hollow, more or less distinctly septate inside 

 so as to appear articulate, 2 or 3in. to 2ft. high. Spikelets numerous in a dense 

 lateral cluster, the involucral bract erect and continuous with the stem, precisely 

 like it and often as long as or longer than the true stem. Spikelets ovoid or 

 oblong, 3 to 6 Imes long, 2 lines diameter at the base or rather more, pale brown. 

 Glumes broad, rather acute or mucronate, slightly striate, the keel scarcely- 



