STATE HORTICULTURAL SOCIETY. 209 



51. Siphonophoia lactuca-. Lettuce, leaves. 



52. rosK. Rose, tender shoots. 



53. rubi. Blackberry bushes. 



54. Lachnus abietis. Spruce (Abies nigra), leaves. 



55. alnifolife. Alder, leaves. 



56. carya;. Pig-nut hickory, branches. * 



57. dentatus. Gray willow, branches. 



58. juniperi. Juniper. 



59. laricifex. Larch (Tamarack), twigs. 



60. laricis. European larch. 



61. pini. Pine. 



62. populi. . 



63. quercifoliiX'. White oak, leaves. 



64. salicelis. Willow, branches. 



65. salicicola. Willow, branches. 



66. strobi. White pine, tips of branches. 



67. ulmi. Elm, leaves. 



68. Eriosoma imbricator. Beech, branches. 



69. lanigera. Apple, trunk and roots. 



70. querci. Oak, limbs. 



71. rileyi. White elm, trunk and limbs. 



72. strobi. White pine, branches, 



73. tessellata. Alder, branches. 



74. Pemphigus hamamelidis. Witch-hazel, conical galls on the leaves. 



75. popularia. Balsam poplar. 



76. populicaulis. Cottonwood, galls on the leaves. 



77. populi-globuli. Balsam poplar, bullet galls on the leaves. 



78. populi-vente. Balsam poplar, compressed galls on the leaves. 



79. rhois. Sumac, galls on the leaves. 



80. ulmi-fusus. Red elm, spindle galls on the leaves. 



81. vagabundus. Cottonwood, irregular galls on end of twigs. 



82. Thalaxes ulmicola. White elm, cockscomb galls on the leaves. 



83. Adelges abietis. Spruce, galls or swellings on the twigs. 



84. Hormaphis hamamelidis. Witch-hazel, conical galls on the leaves. 



85. Rhizobius lactucse. Lettuce, roots. 



86. Phylloxera carysecaulis. Pig-nut hickory, elongate swellings on the leaf-stalk. 



87. caryK-fallax. Shag-bark hickory, conical galls on the leaves. 



88. caryK-foli;v. Shag-bark and Bitter-nut hickories, conical galls on the 



trees. 



89. cary?e-gIobulis. Shag-bark and Pig-nut hickories, globular galls on 



leaves. 



90. caryce-gummosa. Shag bark hickory, pedunculated galls on leaves. 



91. carytfi-ren. Shag-bark hickory, galls on leaf-stalk. 



92. caryse-semcn. Pig-nut hickory, seed-like galls on the leaves. 



93. caryzesepta. Shag-bark hickory, flattened galls on the leaves. 



94. caryas-vense. Shag-bark hickory, plaits in leaf-veins. 



95. castanea;. Chestnut, galls on leaves. 



96. conica. Shag-bark hickory, flattened galls on the leaves. 



97. depressa. Same as last. 



98. forcata. Same as last. 



99. rileyi. White, Swamp White and Iron oaks, galls on leaves. 



100. spinosa. Shag-bark and Pig-nut hickories, irregular spiny galls on 



leaves. 



101. vastatrix. Grape vines, galls on leaves and swellings on roots (Grape 



Phylloxera). 



102. Chermes laricifoline. Larch (Tamarack), leaves. 



103. pinifolije. Pine, leaves. 

 15 



