380 OXLIII. CYPERACEX. [ Mesomelena. 
Hypogynous bristles 3. Stamens 3 with long eis Style 
hardened at the base but at length deciduous. Nut ovoid, obtuse, 
smooth and shining, nearly 2 e long.—Chetospora tetragona, R. Br. 
Prod. 233 ; Nees ii PL Preiss. ii. 86 ; T. Muell. Fragm. ix. 
George’s Sound, P Brown, A. jae pt 0 ro 
many stations thence to Vasse and Swan Rivers, Drummond, Preiss, n. 1 
Oldfield and others. 
. M. sphærocephala, Benth —Stems in large tufts 3 to 5 ft. 
high, slender but rigid, usually compressed or 3-angled under the in- 
florescence. Leaves at the base of the stem long, rigid, flat or concave, 
but sometimes longer and leaflike, all the others very broad and obtuse, 
and several similar bracts Nara within the head. Spikelets very 
nous. Hypo ogynous brides 3, wen one TE slender. Stamens 3. ei 
dec is 3. Nut obovoid, seated on a raised torus or thick ne fe 
wned by the narrow pubescent base of the style (perhaps at leng: 
doctors} -—Chetospora spherocephala, R. Br. Pr od. 233; Back 1 
Linnea, xxxviii. 296; F. Muell. Fragm. ix. 33; Gymnosc chorus SP. b 
rocephalus, Hook. f FL Tasm. ii. 83, t. 142; i levis, Nees m rr 
Nov im Ani Us 
N. S. Wal TOUR R. Brown and others ; northward to New Englan 
C. Stuart, Leichhardt southward to Twofold Bay, F. Mueller t Imlay, 
nip Creek, Gipps’ Land, Wilson’s Promontory, Moun : 
F. Mueller ; " Mount William 1 Creek, Sullivan. 
Abundant 
d 
es in many parts of the island, Gunn an 
others. 
5. M. anceps, Penth.—Very closely allied to M. p 
Stems more slender than in that species though rigid, 1 ce. 
or perhaps sometimes more, often eompressed under the inforesen em 
Leaves as long as or longer than the "ihm crowded at its base, T ary 
a 
EN icis with long slender hairs. Flower-head globular, yen 
- . spherocephala, the eer bracts ovate, 2 oF ouk 
of them produced into linear points or laminz sometimes very short : 
often l or even 2 in.long, the inner deti small. Spikelets ind 
similar to those of M. spherocephala, with 2 or 3 short outer empty 
glumes, and 2 flowering ones much longer and completely enveloping 
each other. Flowers 2, apparently similar to those of M. SP 
