166 GRAMINEAE. [ Deschampsia. 
or flowering glumes faintly silky or almost glabrous at the base, broadly 
oblong, hyaline, indistinctly 5-nerved, truncate, irregularly 3-toothed or 
erose, awnless or with a minute dorsal awn inserted just below the tip. 
Palea as long as the glume, deeply bifid, 2-nerved. Rhachilla elongated 
between the flowering glumes and produced beyond the upper flower into 
a short bristle, quite glabrous.——Cheesem. Man. N.Z. Fl. (1906) 876. 
South Isnanp: Otayo— Hector Mountains, Petrie/ Humboldt Mountains, 
Cockayne ! 5000-6500 ft. 
A very remarkable little plant, quite distinct from any of the following species. 
3. D. novae-zealandiae Petrie in Trans. N.Z. Inst. xxiii (1891) 402.— 
Culms densely tuftéd, branched at the base, slender, smooth, leafy below, 
3-9 in. high, rarely more. Leaves from 4 to $ the length of the culms, very 
narrow, setaceous, involute ; sheaths broad, pale, membranous, grooved ; 
ligules long, scarious, acute, broader than the blade at the base. Panicle 
slender, erect, 1-3 in. long, usually lax but sometimes contracted ; branches 
few, capillary, smooth or minutely scaberulous, sparingly divided. Spike- 
lets few, small, +4,-}in. long, pale-green, shining, 2-flowered. ‘T'wo outer 
glumes unequal, the lower about 4 the length of the spikelet, oblong- 
lanceolate, acute, l-nerved, the upper about 2 the length of the spikelet, 
broader and more obtuse, 3-nerved; 3rd and 4th or flowering glumes 
broadly oblong, hyaline, membranous, faintly 3—-5-nerved, quite glabrous at 
the base, broadly truncate at the apex and irregularly minutely denticulate, 
awn wanting. Palea bifid, 2-nerved, nerves faintly ciliate. Rhachilla 
elongated between the flowering glumes and produced beyond the upper 
flower into a slender bristle, quite glabrous.—Cheesem. Man. N.Z, Fl. (1906) 
876. D. Hookeri 7. Kirk in Journ. Bot. xxiv (1891) 237 (in part). 
SoutH Isutanp : Canterbury—Lake Lyndon, Petrie / Castle Hill, 7. Kirk / Poulter 
River, Cockayne. Westland—Kelly’s Hill, Petrie! Cockayne! Otago—Naseby, Pem- 
broke, Mount St. Bathan’s, Hector Mountains, Lake Te Anau, Petrie / 1000-5000 ft. 
Although very closely allied to D. Chapmani and D. tenella this appears to be 
sufficiently distinct from both in the irregularly denticulate apex of the flowering glume 
ies the total absence of the dorsal awn. Mr. Kirk united all three under the name of 
. Hookeri ! 
4. D. Chapmani Petrie in Trans. N.Z. Inst. xxiii (1891) 401.—Culms 
tufted, branched at the base, quite smooth, leafy, 6-18in. high. Leaves 
longer or shorter than the culms, very narrow, flat or involute, often almost 
filiform, flaccid ; sheaths long, narrow, deeply grooved ; ligules elongated, 
acute, broader than the blade at the base. Panicle very slender, 3-6 in. 
long or more, effuse or contracted, laxly and sparingly branched ; branches 
capillary, minutely scaberulous, usually trichotomously divided. Spikelets 
few, small, about $in. long, pale-green, glistening, 2-flowered. Two outer 
glumes unequal, much shorter than the spikelet, oblong-lanceolate, mem- 
branous, the lower short, 1-nerved, the upper 4 longer, equalling the lower 
flower or slightly exceeding it, 3-nerved; 3rd and 4th or flowering glumes 
broadly oblong, membranous, faintly 3-5-nerved, glabrous at the base or 
rarely with few very short hairs, truncate at the apex and more or less 
irregularly 3—5-toothed ; awn usually present on both glumes, from the 
back a little distance below the tip. Palea bifid, 2-nerved, nerves ciliate. 
Rhachilla elongated between the flowering glumes and produced beyond 
the upper flower into a slender bristle, quite glabrous.—Cheesem. Man. N.Z. 
Fl. (1906) 877. D. Hookeri 1. Kirk in Journ. Bot. xxiv (1891) 237 (in part). 
Catabrosa antarctica Hook. f. Fl. Antarct. i (1844) 102, t. 56.  Triodia 
antarctica Benth. in Journ. Linn. Soc. xix (1881) 111. 
