52 THE JLOEA or THE NORTHERN TERRITORY. 



45. LEPTURUS, R. Be. 



1. L. repens, R. Br. — Arnhem, N. Bay, and Islands of the Gulf of Carpen- 

 taria, R. Brown ; Port Darwin, Schultz (No. 227). 



Stipa eleganlissima, Labill. ; Amphipogon strictus, R. Br. ; Arundo Rox- 

 burghii, F. v. M. ; Bambusa arnhemica, F. v. M. ; recorded in National 

 Herbarium Census from North Australia. 



Tricholcena rosea, Nees (Introd.). — Darwin, G. P. Hill (2nd Series, No. 58), 

 25/5/1913. 



The flowering stems are hairy, with a pink to violet tinge, and when dry 

 are used for dry bouquets. The plant is a native of S. Africa. 



CYPERACEa:. 



Tribe I. — Spikelets solitary clustered capitate or umbellate, with several 

 often numerous hermaphrodite flowers rarely (except in Kyllinga) reduced to 

 two or one. Empty glumes at the base usually only one or two. Hypogynous 

 bristles or scales when present fihform or flat. 



(Empty glumes 3 or 4 and flowers 2 or 3 in Fimbristylis oyperoides). 



Spikelets clustered or spicate, the clusters or spikes sohtary or in simple or 

 compound umbels. Glumes distichous. Style not bulbous. No hypogynous 

 bristles. — 2. Cyperus. 



Spikelet solitary. Glumes imbricate all round. Hypogynous bristle 

 usually present. Nut crowned by the persistent dilated base of the style. — 

 5. Heleocharis. 



Spikelets solitary clustered or umbellate. Glumes imbricate all round or 

 distichous. No hypogynous bristles. Style thickened or bulbous at the base 

 but articulate on the nut. — 6. Fimbristylis. 



Spikelets solitary or clustered, often lateral, or in a compound umbel. 

 Glumes imbricate all round. Style continuous with the nut. Hypogynous 

 bristles present or not. — 4. Soirpus. 



Spikelets in a terminal head or cluster. Glumes imbricate all round. 

 Hypogynous scales 2, flat and parallel with the glume. — 1. Lipocarpha. 



Spikelets clustered, the clusters usually paniculate. — Glumes imbricate 

 all round. H5rpogynous scales 3, flat. — 3. Fuirena. 



{Schoenus has sometimes very nearly the characters of Cyperus). 



Spikelets small, with one flower or rarely two, two inner glumes adhering 

 to the nut. — 7. Kyllingia. 



Tribe II. — Spikelets capitate, spicate or paniculate, rarely sohtary or 

 umbellate, with one, rarely two (in Schoenus, two to six) hermaphrodite fertile 

 flowers, and sometimes one or more male or sterile flowers above or below. 

 Empty glumes at the base often more than two. Hypogynous bristles or scales 

 when present filifonn or flat. 



(Flowers sometimes unisexual by abortion in Caustis). 



Glumes imbricate all round. Style-branches two. Nut crowned by the 

 thickened persistent base of the style. — 12, Rhynchospora. 



Glumes distinctly distichous. Style branches 3, rarely 4. — 8. Schoenus. 



Glumes imbricate all round, or when few obscurely distichous. Style- 

 branches, 3, rarely 4 or 8. 



Spikes paniculate, when 2- flowered the lowest fertile, its glumes as long as 

 the outer empty ones. Stamens 3. — 11. Cladium. 



Spikelets paniculate, when 2- flowered the lowest sterile ; flowering glumes 

 obtuse and shorter than the outer empty ones. Stamens 3 to 6. — 13. Gahnia. 



