EXPL/VNATION OF THE PLATES IN VOLUME U. 



PLATE 73. Prinos glaber (page 4) in fruit, with a branch in flower. Fig. 1. longitu- 

 dinal section of the fruit : Jig. 3. transverse section : Jig. 3. a seed : Jig. 

 4. longitudinal section of ihe same. 



74. Gerardia flava (page 47). Fig. 1. a ripe capsule : fig. 2. the same cut 



transversely, both natural size : fig. 3. a seed, magnified. 



75. Pedicularis lanceolata (page 49) in flower ; with a stamen, the corolla 



and opened capsule separately represented ; all of the natural size. 



75(a). CoLLiNsoNiA Canadensis (page 65), 



76. CuNiLA Mariana (page GO) ; the entire plant of the natural size ; with a 



separate flower magnified. 



77. Scutellaria pilosa (page 70) in flower. Fig. a. the fructiferous calyx. 



78. Scutellaria inteqrifolia (page 71). The upper part of the plant. 



79. Onosmodium hispidum (page 84). Fig. 1. a separate flower : fig. 2. the 



corolla laid open : Jig. 3. the calyx : fig. 4. the ovaries and style ; all 

 magnified. 



80. Phlox aristata. This figure was drawn and engraved under the impression 



that plant had been collected in the Slate, which was afterwards found to 



"^ be a mistake ; although it grows close upon our borders. It will doubtless 



soon be detected in some of the southwestern counties, or on Stalen Island. 



81. Gentiana Saponaria (page 106). The left hand figure : fig. 1. a flower 



of the same laid open : Jig. 2. G. Andre wsu : Jig. 3. a flower of the 

 same laid open, 



82. Gentiana detonsa (page 108). Fig. 1. the corolla laid open : fig. 2. pistil. 



83. Sabbatia angularis (page 113) in flower and fruit. 



84. Sabbatia chloroides (page 113). The whole plant of the natural size. 



85. Asclepias purpurascens (page 120). Fig. 1. a lobe of the stamineal crown : 



fg. 2. a seed : fig. 3. follicle. 



86. Asclepias variegata (page 121). Fig. 1, follicle : fg. 2. a flower : fg.3, 



a lobe of the stamineal crown. 



