. An address upon farm pests, including insects, Fungi, and animalcules . ushes, should be discontinued. Cooke, on the other hand, saysthat while this statement long ago had credit among the people,it has no foundation in fact, as the genera are distinct and per-fect in themselves; while some others, perhaps equally eminent,claim intermediate and spurious forms. Professor CErsted, it issaid, has recently determinedtheir identity as one and thesame plant. In this figure(Fig. 27), a shows a leaf of thebarberry, with cluster cups uponit {/Ecidium herberidis); b, aportion of the leaf magnified ; c
. An address upon farm pests, including insects, Fungi, and animalcules . ushes, should be discontinued. Cooke, on the other hand, saysthat while this statement long ago had credit among the people,it has no foundation in fact, as the genera are distinct and per-fect in themselves; while some others, perhaps equally eminent,claim intermediate and spurious forms. Professor CErsted, it issaid, has recently determinedtheir identity as one and thesame plant. In this figure(Fig. 27), a shows a leaf of thebarberry, with cluster cups uponit {/Ecidium herberidis); b, aportion of the leaf magnified ; c, the same fragment seen side-wise. The leaves of the pear showother species, and very singularand curious clusters of excres-cences occur on the leaves ofthe apple-tree and mountainash, and are also very promi- i,,^ 2^ nent on the leaves of the quince-tree, and especially of the wildapple-tree of the West, consisting of large peridia, pointed atthe tops, and so swollen below as to bear a rude resemblance tourns, the edges split into long, contorted threads. They are a. 48
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Keywords: ., bookauthoryapamphl, bookcentury1800, bookdecade1870, bookyear1879
