298 FLORA OF NEW ZEALAND. [Graminee. 
1. Echinopogon ovatus, Pal. Beauv. Agrost. p. 42. t. 9.7.5. Agrostis ovata, Forst. Prodr. Lab. Fl. 
Nov. Holl. v. 1. p. 19. t. 21. Br. Prodr. Dactylis barbatus, Banks et Sol. MSS. 
Has. Northern Island; common on dry hills, etc., Banks and Solander, ete. 
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 (2-12 inch long) head, with spreading, stiff, scabrid 
awns, Spikelets shortly pedicellate. 
Gen. XV. DEYEUXIA, Clar. 
Spicula 1-floree, cum pedicello plumoso floris secundi accedente (rarius flore secundo imperfecto). 
Gluma 2, subxquales, canaliculatee, mutice, florem plerumque superantes. Palea 2: inferior dorso aristata, 
arista recta v. torta; superior bicarinata. Squamule 2. Caryopsis libera.—Gramina, foliis planis vel in- 
volutis ; panicule ramis plerumque valde elongatis, capillaribus. 
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 
panicle. (Name in honour of M. Deyeuv, an eminent French chemist.) 
1. Deyeuxia Billardieri, Kunth; scaberula, folis latiusculis, panicula laxa, ramis primariis cito 
trichotomis, spiculis majusculis, glumis scaberulis glabrisve flore 4 longioribus, carina scaberula, palea 
inferiore basi sericea 4-nervi nervis percurrentibus lateralibus aristatis, arista ad medium pales inserta 
glumis 3 v. duplo longiore, palea superiore inf. eeguilonga lanceolata bicuspidata setula 4 longiore—Kunth, 
Agrost. p. 244. Lachnagrostis, Trin. Gram. Unifl. Agrostis, Br. Prodr. A. Rich. Flor. Avena filiformis, 
Lab. Fl. Nov. Holl. v. 1. p. 24. t. 31. Ag. variabilis, a procera, e£ A. diffusa, Banks et Sol. MSS. 
Has. Northern Island, Banks and Solander ; abundant at the Bay of Islands, Auckland, and East 
Coast, Sinclair, Colenso, etc. 
A very common Tasmanian species. —Culms tufted, 13 foot high. Leaves 6 inches long, 1-2 inch broad, 
flat, smooth or rough to the touch. Panicle very lax, scabrid; branches very slender, whorled, trichotomous ; 
pedicels long, slender. Spikelets larger than in the allied species, 1-1 inch long, often purple. Glumes narrow, 
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. .4ww inserted at the 
middle 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. 
9. Deyeuxia Porsteri, Kunth; glaberrima v. scaberrima, foliis latiusculis angustisve, panicula laxa, 
ramis primariis elongatis capillaribus trichotomis, glumis (pallidis) glabris carinis scaberulis flore duplo 
longioribus, palea inferiore sericea brevi late truncata nervis 4 percurrentibus breviter 4-cuspidata nervis 
lateralibus rarius elongatis, arista dorso ad medium pales inserta glumis duplo longiore, palea superiore 
inf. breviore obtusa v. bidentata, setula plerumque brevissima.—Kwnth, Agrost. p. 244. Agrostis Forsteri, 
A. Rich. Plor. Ram. et Sch. A. Cunn. Prodr. A. emula, Br. Prodr. A. Rich. Flor. A. retrofracta, 
Schrad. in Herb. Hook. Avena filiformis, Forst. Prodr. Lachnagrostis Forsteri, Trin. Gram. Uniflor. 
L. filiformis, Trin. Fund. 
Has. Northern and Middle Islands, abundant, Banks and Solander, etc., Forster. 
