Experimental taxonomy on the genus Euphrasia L. (Scrophulariaceae: Rhianthoideae)
Euphrasias are semi-parasitic annuals whose roots attach themselves to the roots of other plants. Because of their similarities, the many species present taxonomic difficulties. Development and parasitism were studied by cultural means. Seed germinates in spring and the plants flower in summer. Euph...
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University of Leicester
1959
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| Online Access: | https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.737006 |