20 
Nancy T. Bukuiduk. 
Triodia lanigera Domin in Journ. Linn. Soc. Bond. xli. 278: 1912. 
Differs from T. pungens in the scarious (not rigid) lobes of the lemmas, 
the scarious, many nerved glumes, and the glaucous foliage with woolly, not 
resinous, sheaths. 
Coarse perennial tussock-forming grass. Culms ascending, many noded, 
branching at the upper nodes, internodes short, more or less woolly, especially 
immediately below the nodes. Leaves glaucous, the sheaths much longer 
than the internodes, tomentose or becoming glabrescent in the older parts ; 
ligule a row of short hairs, the tomentum of the sheath continued on to the 
petiole-like base of the lamina. The lamina rigid, pungent pointed, con- 
duplicate, glabrous on the abaxial and scabrid on the adaxial surface, striate 
under a lens, 10-20 cm. long, 2 mm. wide, the petiole-like base 3-5 mm. long 
and narrower than the lamina which is much narrower than the sheath. 
Panicle erect, loose, spreading at anthesis, branches with woolly hairs at their 
bases. Spikelets cuneate with spreading florets, shortly pedunculate. Glumes 
lanceolate or oblong, rounded on the back, scarious, 9—13 nerved, apex acute, 
acuminate or shortly aristulate, the margin minutely ciliolate, 8-12 mm. long, 
4 mm. wide. Lemmas commonly 6—8 of which the lower 4- 6 are hermaphrodite, 
the rest with anthers or empty ; sharply divided into an indurate horny base 
2-3 mm. long, in which there is little or no indication of the nerves, and the 
three scarious lobes each of which is traversed by a group of 3-5 nerves, the 
central nerve of each group reaching to the apex of the lobe, the nerves bounded 
by a narrow strip of ehlorenchymatous tissue ; lobes acuminate and minutely 
ciliolate, the lateral ones 4— 6 mm. long and the central one 7— 10 mm. in the 
lowest lemma ; the whole lemma softly pubescent. Palea obovate or oblong, 
curved in over the floral organs, the base commonly indurate and the apex 
membranous, 3 mm. long in the lowest floret, the nerves ciliate and scabrid. 
(PI. I., fig 2.) 
The spikelets are reminiscent 
of those of Danthonia 
hi partita. 
This species is completely worthless to the pastoralist except for the 
possibility that the seedheads are occasionally sought by hungry stock. The 
rigid, pungent pointed, dry leaves are cjuite unpalatable. It is found in the 
arid summer rainfall areas of the State. 
Distribution. Between Ashburton and \ule Divers, Clement (type 
seen at Kew Herbarium) ; Warralong Station, Anderson ( B-urbidge Xo. 447 
and 453), also Melville {Burbidge 454) and Burbidge 1222 (the last near Shaw 
Diver) ; Abydos Station south-west of Marble Bar, Stewart ; South of Ash- 
burton Diver, Gardner 6233 ; between Gascoyne and Fortescue Divers, H. S. 
King ; Mia Mia Station, Minilya Diver, Gardner 3203 ; Minilva Diver, Gardner 
3209, 4109, 6219 ; Lyndon near Carnarvon. Mead leg M77. 
Triodia pungens R.Br. in Prodr. FI. Novae Holl. p. 182: 1810 ; C. E. 
Hubbard in Hook. leones PI. Yol. iv. pt. ii. t. 3336 ; T. viscida Doem et 
Schult. Sys. Yeg. ii. 599: 1817 ; Festuca viscida F. Muell. Yeg. Chath. Isl. 
59: 1864 ; Triodia Cimninghamii Benth. in FI. Austral, vii. 606: 1878. 
Perennial tussock grass. The growth form is very variable and is further 
discussed below . Culms glabrous, erect or ascendent or forming long stolons 
with tufts of short erect culms at the apex. Leaves conduplicate, the blade 
more or less open when growing ; sheaths coated with a resinous secretion, 
former descriptions refer to the leaves being resinous. In all specimens 
examined, both in the herbarium and in the field, it was found that the resin 
is onhy present on other portions of the plant where they are in contact with 
