1. Echinopogon ovatus, Pai. Beauv. Agrost. p . 42. L 9 ./ . 5. Agrostis ovata, Forst. Prodr. Lah. Fl.
Nov. Eoli. V. 1. p . 19. t. 21. Br. Prodr. Dactylis barbatus, Banhs et Sol. M88.
H ab . Northern Island; common on dry hills, etc., Banks and Solander, etc.
Culms tufted, 6 inches to 2 feet high, leafy below. Sheaths of upper leaves long, ligula short, lamina flat.
Panicle contracted into a cylindrical, blunt, short or long (g—Ig inch long) head, with spreading, stiff, scabrid
awns. Spikelets shortly pedicellate.
Gen. XV. DEYEUXIA, Clar.
Spiculæ 1-floræ, cum pedicello piumoso floris secuudi accedente (rarius flore secundo imperfecto).
e 2, subæquales, canaliculatæ, muticæ, florem plerumque superantes. Paleæ 2 : inferior dorso aristata,
arista recta v. torta; superior bicarinata. Squamulæ 2. Caryopsis liheia.—Gramina, foliis planis vel involutis
; paniculæ ramis plerumque valde elongatis, capillarihus.
Generally slender Grasses, with broad or narrow, flat or involute leaves, and very effuse panicles, that have long
thread-like branches, and long pedicels to the spikelets. The genus differs from Agrostis chiefly in the presence of
a feathery pedicel (of a second flower, which is sometimes though rarely produced) at the back of the upper palea.—
Glumes two, very narrow and sharp, not awned, longer than the flower. Paleas two : the lower with a dorsal,
often twisted awn, often truncate, and the nerves produced into short awns ; upper two-nerved. Seed free.—The
species of this genus frequent the temperate and colder regions of both hemispheres ; the New Zealand and
Australian ones are very beautiful, and remarkable for their slender pedicels and spreading branches of the effuse
pamcle. (Name in honour of 31. Peyeux, an eminent French chemist.)
1. Deyeusia Biliardieri, Kunth; scaberGa, foliis latiuscGis^ panicula laxa^ ramis primariis cito
trichotomis, spicGis majuscGis, glumis scaberulis glabrisve flore * longioribus, carina scaberula, palea
inferiore basi sericea 4-nervi nervis percurrentibus lateralibus aristatis, arista ad medium paleæ inserta
glumis * V. duplo longiore, palea superiore inf. æquilonga lanceolata bicuspidata setula * longiore.—Kwi/i,
rf*ros(.*.244. Lachnagrostis, y™. Phi/?. Agrostis, P ro * . A. Rich. Flor. Avena filiformis,
Lab. Fl. Nov. Holl. v. \ . p . 24. t. 31. Ag. variabilis, a procera, et A. diffusa. Banks et Sol. MSS.
H ab . Northern Island, Banks and Solander ; abundant at the Bay of Islands, Auckland, and East
Coast, Sinclair, Colenso, ete.
A very common Tasmanian species.— « m s tufted, 1* foot high. Leaves 6 inches long. *-* inch broad,
flat, smooth or rough to the touch. Panicle very lax, scabrid ; branches veiy slender, whorled, trichotomons i
pedicels long, slender. Spikelets larger than in the tolled species, inch long, often purple. Glumes norrowi
smooth or scabrid, always so at the keel. Lower palea silky at the base, three-fourths as long as the glume, with
four nerves that project at the truncate top, the lateral of which are produced into short awns. Awn inserted at the
midGe of the palea. bent, one-half or twice as long as the glumes. Upper palea as long as the lower, with two
short points, longer than the silky pedicel at its back.
2. Deyeuxia Forsteri, Kunth; glaberrima v. scaberrima, foliis latiusculis angustisve, panicula laxa,
ramis primarüs elongatis capillaribus trichotomis, glumis (palliGs) glabris carinis scaberulis flore dupb
longioribus, palea inferiore sericea brevi late truncata nervis 4 percurrentibus breviter 4-cuspidata nervis
lateralibus rarius elongatis, arista dorso ad medium paleæ inserta glumis duplo longiore, palea superiore
inf. breviore obtusa v. bidentata, setula plerumque brevissima.—Xwf/i, Agrost. p . 244. Agrostis Forsteri,
A. Rich. Flor. Ræm. et Sch. A. Cunn. Prodr. A. æmula, Br. Prodr. A. Rich. Flor. A. retrofractai
Schrad. in Herb. Hook. Avena filiformis, Porst. Prodr. Laclinagrostis Forsteri, Trin. Gram. Unijloi.
L. filiformis, Trin. Fund.
IIab . Northern and Middle Islands, abundant. Banks and Solander, etc., Forster.
Gramineæ?] FLORA OF NEW ZEALAND. 29 9
Generally a taller plant than D. Billardien, with many more, much smaller pale-green spikelets. Culms 1-3
feet bigh. Leaves flat, broad or narrow, quite smooth or scabrous. Panicle 4-8 inches long, of very numerous,
whorled, slender branches, that do not generally divide so soon as in the former species. Pedicels very slender.
Spikelets a inch long. Glumes smooth, except along the keel, twice as long as the flower, and half as long as the
awn. Lower palea very silky all over, truncate, the !^eth produced -into short points, awn inserted at the middle.
Upper palea shorter, blunt or two-toothed. Setula generally very small.—This plant is the Avena filiformis of
Forster in Herb. Hook., and also of Labillardiere in Herb. Hook. Mr. Brown however refers Labilîardière’s
plant to his I). Billardieri, with which the figure in Lab. Plant. Nov. Holl. agrees. This appears as common and
variable a plant in Australia, Tasmania, and New Zealand, as Agrostis canina is in Europe ; its synonymy is much
involved.
3. Deyeuxia setifolia, Hook, fil.; cæspitosa, lævis v. scaberula, foliis setaceis filiformibusve, panicula
contracta parce ramosa pauciflora, glumis acuminatis carinis scaberulis flore paulo longioribus,
inferiore basi longe sericea v. glabrata apice truncata 4-cuspidata v. erosa, arista ad medium dorsi inserta
glumis ^ longiore incurva, palea superiore breviore 2-dentata setula longe ciliata ^ longiore. (Tab.
LXV. B.)
H ab. Northern Island : Titiokura, top of Ruahine range, and Waikare Lake, Colenso.
A small, wiry, tufted Grass, of a different habit from the preceding.— Culms 6-8 inches high. Leaves very
narrow, filiform or setaceous, smooth or rough to the touch, wiry, shorter than the culms. Sheaths short. Panicle
1-2 inches long, narrow, contracted, sparingly branched, of few, erect, pedicelled, pale, shining spikelets Ig- 2 hnes
long. Glumes acuminate, rather longer than the flower. Loioer palea more or less silky, truncate, toothed or 4-
cuspidate at the tip. Awn inserted at the middle, rather longer thau the glumes, curved or bent inwards. Upper
palea shorter than the lower, with two teeth at the truncate top, longer than pedicel, which has very long, silky
hairs.—P late LXV. B. Fig. 1, spikelet; 2, flower; 3, pistil and scales :—all magnified.
Gen. XVI. ARUNDO, L.
Spiculæ 2-5-floræ; floribus distichis, subremotis, summo tabescente. Glumæ 2, subæquales, acutæ,
inter se remotæ. Paleæ 2 : inferior apice biflda, inter lobos subulatos breviter aristata, extus basi imprimis
sericea; superior brevior, bicarinata.—Gramina hygrobia, elata; îoliis planis v. involutis; paniculis ramosissimis
diffusis.
Generally tall, very handsome, sometimes almost shrubby Grasses, growing in watery places iu various parts
of the world.—Leaves flat or involute. Panicles very large, effuse, soft and silky, often shining. Glumes long and
narrow, nearly equal, keeled, sharp. Lower palea bifid, with an awn between the subulate lobes; veiy silky,
especially at the base ; upper shorter. Scales two, thick. Stamens three. (Name, arundo, in Latin.)
1. Arundo conspicua, Eorst.; elata, glaberrima, foliis coriaceis elougatis involutis, panicula maxima
ampia nutante effusa, ramulis capillaribus lævibus vel pilosiuscuÜs, glumis mtidis æqualibus longissime
acuminatis 2-3-floris floribus longissime sericeo-ciliatis subduplo longioribus, palea inferiore acuminata
longe aristata, arista subtorta inclusa.—Forst. Prodr. Willd. Sp. PI. A. australis, A. Rich. Flor. A.
australis et Agrostis conspicua, A. Cunn. Prodr. A. lutescens, conspicua, et sericea. Banks et Sol. 31SS.
Agrostis conspicua, A. Rich. Flor. Achnathcrum, Pal. Beauv. Agrost. Calamagrostis conspicua, Grael.
Syst. Kunth, Agrost.
IIab . Northern Island, in moist places. Banks and Solander, etc. Nat. name, “ Kakaho,” Col.
The largest Grass iu New Zealand.— Culms 3-8 feet high, as thick as tbe thumb below, extensively used in
lining houses with recd-work. Leaves coriaceous, involute, narrow, smooth or scabrid along the upper surface and
edge. Panicle very beautiful, 1-2 feet long; branches drooping, loaded with innumerable shining yellow spikelets,