Naturalisation in Extra-Tropical Countries. 373 



Poa bulbosa, Linne. 



Europe, North-Africa, extra-tropic Asia. A perennial species. 

 Dr. J. Aitchison singles it out for laudation as a profuse pasture- 

 and hay-grass in Afghanistan. Closely allied to it is P. alpina, L. 



Poa caespitosa, G. Forster. 



Extra-tropical Australia and New Zealand, ascending alpine 

 elevations. A tufty grass, available throughout the year for pasture- 

 feed, when young* or when offering flowering or seeding-stalks, or 

 when presenting tender varieties ; the rougher varieties utilised by 

 the aborigines for nets and cordage. Resisting drought. Well 

 worthy of being naturalised in other parts of the globe. Refer for 

 further information on this and other N.Z. grasses to J. Buchanan's 

 special work, in which P. anceps (Forster) is also mentioned as 

 important. 



Poa Canadensis, Beauvois. 



The Rattlesnake-grass of South-Eastern America. A valuable 

 swamp-grass. 



Poa Chinensis, Koenig. 



Southern and Eastern Asia, East-Australia. Recommended by 

 Mr. F. M. Bailey as a valuable pasture-grass, perhaps on account of 

 its tender panicles. P. compressa (L.), of Europe and Western 

 Asia, will grow in pure sand. 



Poa Colensoi, J. Hooker. 



New Zealand, up to 5000 feet. This tufty grass is greedily de- 

 voured by sheep, which thrive well on it. Holds its ground well, 

 being of great vitality [D. Petrie]. 



Poa cynosuroides, Eetzius. 



North-Eastern Africa, Southern Asia. A harsh perennial grass, 

 not serviceable for fodder, but mentioned by Royle as a fibre-plant 

 of North-Western India, where it is valued as material for ropes. 

 Mr. Duthie has it however among his illustrations of the fodder- 

 grasses of N.W. India. 



Poa digltata, R. Brown. 



South-Eastern and Central Australia. Valuable for fixing wet 

 river-banks and slopes. It forms large stools. Cattle and horses 

 relish the young shoots. 



Poa distans. Linne. 



Europe, North-Africa, Middle and Northern Asia, North-America 

 Perennial. It is one of the limited number of tender grasses 

 suited for moist saline soil, and thus affords pasturage on coast- 

 marshes. 



