Poa.] | GRAMINEAE. > | 195 
15. P. Cheesemanii Hack. in Trans. N.Z. Inst. xxxv (1903) 383.— 
Perennial, hardly tufted; rhizome with creeping stolons furnished with 
leafless scales. Culms erect or decumbent at the base, slender, smooth, 
terete, 3-noded, the upper node about half-way up the culm, 12-18 in. 
high. Leaves much shorter than the culms, 2-6in. long, about jg in. 
broad, rigid, erect, obtuse at the tip, more or less complicate when dry ; 
sheaths shorter than the internodes, subcompressed, keeled in the upper 
part, glabrous; ligules short, truncate. Panicle ovate, lax, spreading, 
9-5 in. long; rhachis smooth, more or less flexuose above ; lower branches 
ternate, upper binate or solitary, slender, almost capillary, lower § undivided 
and smooth, towards the tip bearing a few unispiculate branchlets. Spike- 
lets elliptic, often tinged with red, rather more than 4 in. long, 5—6-flowered. 
Two outer glumes unequal, 3 the length of the flowering glumes above 
them or even more, oblong-lanceolate, acute, 3-nerved, quite smooth. 
Flowering glumes oblong-ovate, subacute, prominently 5-nerved, callus 
clothed with long crisped woolly hairs 4} the length of the glume, keel 
and nerves near the base sparingly villous, remainder of the glume smooth 
and glabrous. Palea almost as long as the glume, limear-oblong, scabrid 
on the keels. Anthers linear, about 7; in. long.—Cheesem. Man. N.Z. 
Fl. (1906) 906; Ill. N.Z. Fl. u (1914) t. 231. 
Sourn Istanp : Nelson—Lake Tennyson, 7. F. C. ; near Westport, W. Townson ! 
Professor Hackel remarks of this species that it is allied to P. anceps, but differs 
markedly in the stoloniferous rhizome, the rhizome of P. anceps being invariably tufted 
and without stolons. The spikelets are also broader, the two outer glumes longer in 
proportion and smoother, and the flowering glumes much more hairy at the base and 
smoother above. PP. dipsacea differs in the more flaccid habit, larger spikelets, and 
in the flowering glumes being scabrous above. 
16. P. Coekayniana Petrie in Trans. N.Z. Inst. xlv (1913) 274.—Tufted, 
much branched at the base, and there clothed with leafless scales. Culms 
numerous, 12-20in. high, erect, slender, smooth and glabrous, terete, 
9-3-noded, the upper node rather more than half-way up the culm. 
Leaves shorter than the culms, about ;4; in. broad, rigid, erect, more or 
less complicate when dry, rarely flat, acute at the tip, smooth and 
glabrous when adult, finely pubescent when young, striate on both 
surfaces; sheaths long, membranous, grooved or striate; ligules short, 
broad, erose. Panicle ovate, lax, spreading, 4-6in. long; rhachis slender, 
scaberulous; branches long, capillary, the lower 2-nate or rarely 3-nate, 
upper solitary. Spikelets few, distant, }-$in. long, compressed, ovate, 
acute, 2-3-flowered. Two empty glumes slightly unequal, # the length 
of the spikelet, oblong-lanceolate, acute, 3-nerved, quite smooth on the 
face, scabrid on the keel. Flowering glumes oblong, obtuse, membranous, 
erose at the tip, 5-nerved, margins thin and scarious, callus and lower 
part of the keel with long cobwebby hairs. Palea shorter than the glume, 
ciliate on the keels. 
Soutn IsLAND: Banks of the Rolleston River, Westland, Cockayne / 3000- 
4000 ft. 
Mr. Petrie considers this to be a near ally of P. dipsacea, but it is much more 
closely related to P. Cheesemanii, of which it has the habit and foliage, differing chiefly 
in the more open panicle, and fewer-flowered spikelets. 
17. P. Chathamica Petrie in Trans. N.Z. Inst. xxxiv (1902) 394.— 
Rhizome long, wiry, creeping and rooting among Sphagnum, &c. Culms 
1-2 ft. high, often decumbent and branched at the base, erect above, 
7% 
