ON THE GEBMINATION OF SEEDS. 137 



Brassica oleracea, var. " Cattell's Cabbage:" germinated ex- 

 cellently after 36 days ; all dead after 50 days. 



, var. growing wild on the Castle Eocks of 



Tenby ; fresh seeds, after 50 days germinated excellently ; 

 after 110 days germinated very well ; after 133 days only two 

 out of some hundreds germinated (f). 



t Brassica Bapa (var. yellow turnip). 



Baphanus sativus : after 85 days, -£$ germinated ; the cold water 

 seemed to be injurious to these seeds, for after only 30 or 50 

 days all the seeds were dead (var. black radish) (t). 



Erysimum Berowskianum : after 36 days germinated well ; after 

 50 only one seed ; after 70 days all dead (t). 



Matthiola annua: germinated after 28 days; all dead after 54 days. 



Sinapis nigra : seeds much swollen ; germinated after 11 days ; 

 all dead after 22 days : fresh seed germinated pretty well 

 after 15 days, but were all killed by 25 days' immersion. 



Crambe maritima : after 37 days germinated well. 



Tropceolum majus : after 37 days nearly all germinated, but after 

 50 days none did. 



fldmnanthes Douglasii. 



Hibiscus Manihot: all were killed by 11 days' immersion (t). 



fMalope grandiflora. 



Bapaver somniferwm : germinated well after 28 days ; was killed 

 by 54 days. 



Argemone Mexicana: came up excellently after 50 days, and 

 pretty well after 70 days. 



fChrgseis crocea (germinated very imperfectly after the month). 



Linum usitatissimum : after 7 and after 14 days only two or three 

 seeds, out of very many, germinated ; after 28 only one seed 

 came up; after 42 days not one germinated. These seeds 

 gave out much slime. 



fSilene compacta. 



Bheum BJiaponticum : germinated well after 82 days. 



Atriplex (garden or ache) : some of the seed germinated under 

 water after 56 days' immersion ; the remaining seed ger- 

 minated excellently after 100 days. 



Beta vulgaris : excellently after 100 days (f). 



Spinacea oleracea : excellently after 70 days ; a few after 120 

 days ; all killed by 137 days (f). 



(LEGUMINOS-E.)' 



Vicia Faba (var. " Johnston's Wonder") : two out of six lived 



