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Klose, N. A. J. G. Bericht iiber die 

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Knauer, F. Beriihmte Pfi-opf bastarde. 

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Knuth, P. Handbook of flower polli- 

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Kupfifer, K. R. Unsere Alopecurus 

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Loxton, W. The cross-breedir'g and 

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Lynch, R. I. Natural hybrids, t.z. 



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Macfarlane, J. M. The occurrence of 

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