206 



ME. J. BALL ON THE DISTRIBUTION OF 



Salix pentandra, Lin7i 



■ fragilis, Linn 



alba, Linn 



, var, (S. vitellina, Linn.) . 







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6 7 8. 



8 9 



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amygdaliua, Linn 



daphnoides, Vill 



Pontederana, SchleicJi. (hybr.) . . 



purpurea, Linn 



, var. (S. Helix, Linn.) .... 



rubra, Hitch. ..... 



viminalis, Linn 



incana, Schrmik 



cinerea, Linn 



nigricans, Fr 



grandifolia, Ser 



Caprea, Linn 



• aurita, Linn. ? 



glabra, Scop 



phylici folia, var. Hegetschwei 



leri, Beer. 



hastata, Linn 



ambigua, Ehrh. ? 



repens, Linn 



, var. (S. rosmarinifolia 



Linn.). 



Arbuscula, Linn 



Lapponum, Linn 



glauca, lAnn 



caesia, ViJl 



Myrsinites, Linn 



, var. (S. Jacquiniana. 



WilU.). 



reticulata, Linn 



retusa, Linn 



, var. (S. serpyllifolia. Scop. 



herbacea, Linn. 



Populaa alba, Linn. 



canescens, Sm. 



tremula, lAnn. 



nigra, Linn. 



1 2 



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Betula alba, Linn 



■ gummifera, Bert. . 



pubescens, Ehrh. . 



• humilis, Schrmik'i 



Alnu3 viridis, DC. 



glutinosa, Gcertn. . 



brembana. Rota 



incana, WiUd. . . . 



Ephedra distachya, Linn. . 



Taxus baccata, Linn 



Junipcrus communis, Linn. 



nana, Willd 



Oxycedrus, Linn. . . . 



phoenicea, Linn. . , . 



Sabina, Linn 



Pinus sylvestris, Linn. . . . 



Mughus, Scoj) 



nigricans, Host 



Cembra, Linn 



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