94 CYPERACEAE. 7. Lipocarpha. 



11. S. littoralis, Schrad. Very near the preceding, but the umbel is looser, the oblong 

 spikelets attain 15-20 mm. when ripe, and the hypogynous bristles are not filiform, but are 

 rather linear scales a little longer than the nut, channelled on the inner side and ciliate 

 with flat hairs directed upwards. 



Same localities and season. 



12. S. maritimus, L. Rootstock creeping ; stems tall, triquetrous, with long leaves ; 

 spikelets golden-brown, ovoid, 10-18 mm. long, clustered in a usually dense umbel ; 

 involucral bracts 3, exceeding the inflorescence ; glumes notched or jagged, the keel 

 ending in a spreading awn ; style-branches 3 ; nut shining, trigonous ; bristles 6. 



In water near sea, and also inland. Sept. -Feb. 



7. LIPOCARPHA, R. Br. 



(Greek liparos, shining; karphos, chaff: alluding to the silvery glumes of L. argentea.) 

 1. L. microcephala (R. Br.), Kunth. Annual, with slender stems and narrow leaves; 

 spikelets many-flowered, usually 3 together in a terminal cluster, ovoid, 3-4 mm. long ; 

 glumes imbricate all round the rhachilla, small, pointed ; style -branches 2 ; nut com- 

 pressed and enclosed in 2 hypogynous scales. 



On the Murray in Victoria, and in the MacDonnell Ranges ; therefore probably to be 

 found in South Australia. 



8. CHORIZANDRA, R. Br. 



(Greek khorizo, to separate ; aner, andros, a male : referring to the separate male flowers.) 

 1. Ch. enodis, Nees. Stems slender but wiry, from a creeping rootstock ; inner leaves 

 stemlike, the outer reduced to sheathing bases ; spikelets consisting of 1 terminal female 

 flower surrounded by several male flowers of 1 stamen, each enclosed in a 3-toothed 

 ciliate glume ; spikelets numerous, compacted in a dense globular lateral reddish -black 

 head, with a stiff erect involucral bract continuing the stem ; style -branches 2 ; nut 

 biconvex, ribbed. 



Wet places in the southern districts and Eyre Penisula. Oct. -Dec. 



9. CLAD1UM, P. Browne. 

 (Greek kladion, a branchlet : alluding to the panicled inflorescence.) 

 Spikelets paniculate, with 1-3 bisexual flowers, but usually the lowest only fertile; 

 glumes few, imbricate all round, the one bearing the fertile flower usually the largest, 

 1-3 outer ones empty; stamens and style -branches mostly 3 , no hypogynous bristles. 

 Perennials with a creeping rootstock. Fnited by Mueller and Tate with Gahnia. 

 A. Leaves almost reduced to the sheath. 

 B. Stems slender, stiff. 



Spikelets numerous C. junceum 1. 



Spikelets few C. Gunnii 2. 



B. Stems capillary, flexible C. capillaceum 3. 



A. Leaves developed. 



C. Panicle composed of dense umbels G. Mariscm: 4. 



C. Panicle loose or narrow. 



D. Leaves cylindrical. 



E. Sterns hollow, transversely partitioned G. articulatum 5. 



E. Steins solid ; panicle loose. 



Leaves few, short C. glomeratum 6. 



Leaves many, long C. filum 7. 



D. Leaves angular C. tetragunum 8. 



D. Leaves flattened G. acutum 9. 



1. C. junceum, R. Br. Stems slender but rigid, 30-60 cm. high ; leaves almost reduced 

 to sheaths on the stem and at base ; spikelets few, reddish-brown in a spikelike panicle 

 only 1-2 cm. long ; glumes acute, ciliate on keel, nut blackish, trigonous towards base. 



Southern districts ; Eyre Peninsula ; Flinders Range ; South-East. Summer. 



2. C. Gunnii, Hook. f. Stems as in the preceding ; leaves reduced to sheaths, or 1 or 

 2 with a btemlike blade ; panicle narrow, 3-5 cm. long, interrupted, with erect branches ; 

 spikelets few, rather distant, 5-6 mm. long, 1 -flowered ; glumes acute; nut trigonous, 

 shining, with a cushion-like summit. 



Mount Lofty Range. Recorded by Bentham, but does not appear to have been found 

 since. 



3. C. capillaceum (Benth.), C. B. Clarke. Stems capillary, leafless except for sheathing 

 bases; spikelets narrow, acute, 3-4 mm. long, 1 -flowered, forming a slender panicle of 

 1-2 cm. ; nut white, globular, 3 -ribbed, crowned by the thickened persistant base of the 

 style as long as itself. — Elynanthus capillaceus, Benth. ; Schoenus capillaris, F. v. M. 



Kangaroo Island. 



