Naturalisation in Extra- Tropical Countries. 77 



deserts of Central Australia [Rev. H. Kempe], though cabbage, 

 cauliflower and kohl-rabi can there be grown through the whole 

 year ; cabbages even in the lowlands of the South-Sea Islands. 

 In Britain, the kitchen-vegetables from this species are obtained 

 earliest from the Channel -Islands, latest from the Scotch highlands. 



Briza media, Linne. 



Europe, Western and Northern Asia. A perennial early but slender 

 grass, particularly fitted for poor soil in cool climates. Sinclair 

 regards its nutritive power considerable, and notes that it is readily 

 consumed by horses, cattle and sheep. Messrs. Sowerby and C. 

 Johnstone recommend it on account of the scantiness of its foliage 

 merely for naturalisation. Prof. Hieronymus mentions as extra- 

 tropic South-American sheep-grasses, B. Lamarckiana, Nees., B, 

 stricta, Hooker, and B. triloba, Nees., all perennial. 



Bromus asper, Murray. 



Europe, Northern and Middle Asia. A good perennial fodder-grass 

 for wood-regions, but like Festuca gigantea late in the season. 



Bromus ciliatus, Linne. 



North-America. A perennial fattening grass, resembling the 

 Prairie -grass, growing in mild temperate climes all the winter and 

 also during summer, if drought A is not too long continued, starting 

 afresh after the least rain [Dr. Curl]. 



Bromus erectus, Hudson. 



Europe, Northern Africa, Western Asia. Important as a perennial 

 nutritious grass for dry lime- stone regions ; much liked by cattle and 

 sheep. Particularly valuable for poor calcareous soil [Dr. Stebler]. 

 Prof. Naudiii regards it as superior to Lolium for lawns in hot dry 

 regions. B. mollis, L. is dangerous for spreading the red rust 

 fungus, Puccinia straminis (Uredo Rubigo), and so it would likely 

 be with other congeners. 



Bromus inermis, Leyseer. 



Europe and Northern Asia. Perennial, rather tall, root-creeping. 

 Lauded by Prof. Hilgard for Californian growth, as " Hungarian 

 Brome-grass." 



Bromus unioloides. Humboldt.* (B. Schraderi, Kunth.) 



From Central America to the sub-alpine zone of Northern Argen- 

 tina. In Australia called the Prairie-grass. It has spread over 

 many parts of the globe as naturalised. The writer saw it dis- 

 seminated on the mountains of St. Vincent's Grulf as early as 1847. 

 It is one of the richest of all grasses, grows continuously and spreads 

 rapidly from seeds, particularly on fertile and somewhat humid soil, 

 and has proved as a lasting and nutritious fodder-grass or pasture- 



