4p-opymm.] CLIH. GRAMINE^B, 1921 



Tasm. ii. 128 ; Vulpia rectisecta and V. Browniana, Neea in PI. Preia^. ii. 107 ; 



f. scabra and V. Browniana, Neea in Hook. Lend. Journ. ii. 419; Festuca 



rei;tiseta, F. browniana, and F. BiUardieri, Sfceud. Syn. Glum, i. 304 ; 

 Anthosafihne australasica, Steud. I.e. 237. 



Hab.: Moreton Bay, Leichhardt, C. Stuart ; Warwick, Beckler ; Suttor Desert, F. v. Mueller ; 

 affording good herbage during winter and early spring. 

 Also in New Zealand. 



94. *HORDEUM, Linn. 



(An old name of Barley.) 



Spikelets 1-flowered, 3 together sessile or nearly so in the alternate notches of 

 the rhachis of a dense cylindrical spike, the central flower hermaphrodite, those 

 of the lateral spikelets usually male or neuter. Outer empty glumes 2, subulate 

 or slightly flattened, tapering into straight awns or awnlike from the base. 

 Flowering glume inserted rather higher up, convolute round the flower with a 

 straight terminal awn. Palea 2-ribbed. Ovary crowned by a tuft of hairs. 

 Stigmas nearly sessile. • 



A genus o£ tew species, mostly of Mediterranean origin, dispersed over the temperate and 

 subtropical regions of both hemispheres. 



Outer empty glumes of the central spikelets more or less dilated and ciliate 



in the lower half 1. H.murinum. 



Spikelets 2 to 6-rankefl, flowering glume long awned 2. H. vulgare. 



1. H. murinum (of walls), Linn. ; Kunth, Enum. i. 456 ; Benth. Fl. Amtr. 

 vii. 669. Wall Barley. A coarse tufted or decumbent grass, varying from 6in. to 

 2ft. high. Leaves flat, the sheaths rather loose and glabrous, the lamina usually 

 hairy. Spike dense and cylindrical, 2 to 4in. long, thickly beset all roimd with 

 the long erect rough awns. Spikelets 3 to 6 lines long without the awns, the 

 outer empty awnlike glumes all at the base of the short rhachis forming a kind of 

 involucre round the flowering ones, those of the central spikelet though very 

 narrow and rigid, dilated and ciliate in the lower half, and the lowest awn of the 

 lateral spikelets usually very slightly dilated and shortly ciliate, the 2nd subulate 

 and scabrous only. Flowering glume usually glabrous outside, more or less 

 ciliate inside, the ribs of the palea also ciliate. Awns varying from J to lin. 

 long.— Reichb. Ic. Fl. Germ. t. 11 ; F. v. M. Fragm. viii. 126. 



Hab.: A widely distributed species established la places towards Wallangarra. 



2. H. vulgare (common), Linn. Spec. PL 84. Spikelets 2 to 6-rowed, 

 flowering glume with long awns. 



Var. hexastichen. Spikelets in 6 rows. The Six-rowed Barley. 



Tar. distichon. Spikelets in 2 rows. The Malting Barley. 



These are the Barleys of cultivatioo, and are met with as strays from cultivation. 



95. BAMBUSA, Sohreb. 



(From the Indian name Bambos.) 



Shrubs or trees, usually large and csespitose, rarely climbing ; stem sheaths 

 broad, blade often triangular. Leaves shortly petiokte, not tessellate by nervules, 

 but sometimes by pellucid glands, sheaths variouply auriqled. Inflorescence 

 generally a large leafless panicle bearii^g heads on spiciform branches, or of 

 leafy panicles, or paniculate spike. Spikelets of 1 or many flowers; lower 

 glumes 1 to 4, empty or gemiferous ; flowering glumes ovate-lanceolate, upper- 

 most imperfect ; palea 2-keeled. Lodicules 2 to 3, membranous, ciliate, rarely 

 wanting. Stamens 6. Ovary oblong or obovate, tip hairy ; style long or short, 

 stigmas 2 to 3. Grain oblong or linear-oblong, furrowed on one side ; pericarp 

 thin, adherent.— Hook. Fl. Brit. Ind. vii. 386. 



