332 SELECT PLANTS FOR INDUSTRIAL CULTURE 



Middle and South Europe. Though annual only, or sometimes 

 biennial, it is valued in some of the systems of rotations of 

 crops. In the south of England it is much sown on harrowed 

 stubble fields to obtain an early fodder of great fattening 

 value. It forms particularly a good fodder for sheep ; it is 

 recommended especially for gypsum regions. A white flower- 

 ing variety exists. Bees are very fond of it (Darwin) . 



Trifolium medium, Linne.* 



The Red Zigzag Clover. Europe, North and Middle Asia. 

 A deep-rooting, wide-creeping, perennial herb, much better 

 adapted for dry sandy places than T. pratense. It would also 

 endure the inclemency of the clime of higher Alpine regions, if 

 disseminated there. One of the best Clovers for forest regions. 

 For regular culture it needs lime, like most plants of its class. 

 More hardy than T. hybridum, less productive than T. pratense 

 (Langethal). It ought not to be omitted among mixed clo- 

 vers and grasses. According to Morton it is not so much 

 sought and relished by grazing- animals as many other Clovers. 

 T. Quartinianum (A. Rich) is an allied plant from Abyssinia, 

 where several endemic species exist. Some of the twenty-five 

 known Calif ornian Clovers would deserve test culture. 



Trifolium montanum, Linne. 



Europe, West Asia. Perennial. Not without importance for 

 limy or marly ground. 



Trifolium ochroleucum, Linne. 



Middle and South Europe, West Asia. Pale-yellow Clover. 

 Perennial. This species is much cultivated in Upper Italy ; 

 its value is that of T. medium (Langethal) . 



Trifolium Pannonicum, Jacquin. 



The Hungarian Clover. Perennial. Earlier in the season than 

 Red Clover, to which it is allied, but less tender in foliage 

 (Morton) . 



Trifolium pratense, Linne.* 



The ordinary Red Clover. All Europe, North Africa, North 

 and Middle Asia, extending to Japan. A biennial or under 

 special circumstances also perennial herb, of great importance 

 for stable fodder. It prefers rich soil, and particularly soil 

 that is not devoid of lime ; gypsum dressings are recom- 

 mended for its fields. It enters very advantageously into the 

 rotation system of crops. This species also would live in 

 Alpine regions, where it would much enrich the pastures. 



