55. Koeleria. GR AMINE AE. 77 



55. KOELERIA, Pers. 

 (After G L. Koler, a German botanist.) 



Spikelets compressed laterally, 2-6-flowered, in a narrow panicle ; outer glumes 2, 

 membranous ; flowering glumes 3-5-nerved, sometimes shortly awned in the notch, the 

 upper ones gradually smaller and stalked. 



Outer glumes slightly unequal, shorter than flowers K. phleoides 1. 



Outer glumes very unequal, longer than flowers K. Michelii 2. 



* 1. K. phleoides, Pers. Ascending annual, with somewhat hairy leaves ; panicle dense, 

 spikelike, 1-12 cm; long, when large slightly lobed, cylindrical or oblong, silvery ; spikelets 

 3-4 mm. long, 4-6-flowered ; outer glumes sprinkled with some long hairs, shorter than 

 the flowers ; flowering glume 5-nerved, with a short awn rising from the notch at summit. 



Common throughout the State. Sept. -Nov. — Mediterranean region. 



* 2. K. Michelii, Cosson. Annual, with pubescent leaves ; panicle narrow but looser 

 than in the preceding species, 1-9 cm. long, light-colored ; the lowest glume very small, 

 the second much larger and equalling or exceeding the flowers ; flowering glume narrow- 

 cylindrical, with an awn in the notch half as long as the glume. 



Southern districts ; Murray lands. Sept. -No v. — Mediterranean region. 



56. TRISETUM, Pers. 



{Latin tres, three ; seta, bristle : the flowering glume ends in 2 teeth and bears a dorsal • 



awn.) 



*1. T. pumilum, Kunth. Annual, usually small, with ascending stems ; leaf-sheaths 

 pubescent ; spikelets 3-4-flowered, 4 mm. long, in a spikelike but rather loose panicle of 

 1-5 cm. ; rhachilla with tufts of hairs half as long as the flowering glumes and ending in 

 a hairy bristle ; outer glumes subequal, densely pubescent, shorter than the flowers ; 

 flowering glume 5-nerved, 2-toothed, with a slender awn rising just below or in the notch 

 formed by the teeth and about ^ as long as the glume. 



Established in the North, Ear North, and North- West. Aug. -Oct. — South Africa. 



57. BRIZA, L. 



(Greek briza, name of some form of Rye.) 



Spikelets compressed laterally, with several spreading, closely imbricate flowers hanging 

 in a loose panicle ; outer glumes 2, almost equal, boatshaped, 7-9-nerved ; flowering glumes 

 membranous, concave, obtuse ; palea much smaller ; ligule long, scarious. '■ ■- 



Spikelets large, few B. maxima 1. 



Spikelets small, numerous B. minor 2. 



* 1. B. maxima, L. Large Quaking-grass. Glabrous annual ; panicle 1 -sided, simple ; 

 spikelets few, 10-20 mm. long, drooping on filiform pedicels, 9-17-flowered, golden. 



Mount Lofty Range and cool districts. Sept. -Dec. — Mediterranean region. 



* 2. B. minor, L. Lesser Quaking-grass. Glabrous annual ; panicle compound ; 

 spikelets many (except in starved specimens), pale-green, 3-5 mm. long. 



Same localities. — Europe. 



58. DACTYLIS, L. 



(Greek daktylos, a finger : shape of the panicle.) 



*1. D. glomerata, L. Cock's-foot-grass. Tall perennial; leaves flat, long; spikelets 



3-5-flowered, in dense 1-sided clusters at the end of the branches of a long panicle, which 



is narrow except when in flower ; outer glumes 2, subequal, shorter than the flowers ; 



flowering glume 5-nerved, with a ciliate keel, 2 teeth and a short terminal point or awn. 



Mount Lofty Range ; South-East. Nov. -Dec. — Europe; Asia. 



59. ERAGROSTIS, Beauv. 

 (Greek eros, love ; agrostis, grass : alluding to the elegance of the spikelets.) 

 Spikelets of several or many flowers, paniculate, the rhachilla fragile or persistant ; 

 outer glumes 2, keeled, much shorter than the flowers ; flowering glumes unawned, 3- 

 nerved ; palea shorter, prominently 2-nerved, usually persistant after the flowering glume' 

 and grain have fallen ; grain glabrous, not furrowed, with a punctiform hilum ; ligule 

 reduced to a ring of hairs. Love-grass. 



A. Spikelets slightly flattened, without a longitudinal fur- 

 row ; lateral nerves faint or marginal. 



B. Spikelets 1-4 mm. long E. tenella 1. 



B. Spikelets 3-10 mm. long. 



Grain oblong E. leptocarpa 2. 



Grain ovoid. 



Leaves glabrous E. pilosa 3. 



Leaves hairy E. trichophylla 4. 



