THE COLUMBIAN EXPOSITION. 445 



Marridnuvi vulgare, L. Horel^ouml. 

 Mentha piperita, L. Peppermint. 



" viridis, L. Spearmint. 

 Phytolacca decandra, L. Pokeweed. Scoke. 

 Podophyllum ]>eltatum, L. Mandrake. 

 Polygaia senega, L. Senega. Seneca Snakeroot. 

 Prunus serotina, Ehrh. Wild Black Cherry. 

 Quercus alba, L. White Oak. 

 Kubus villosus. Ait. Blackberry. 



Rumex crispus, L. Curled Dock. Narrow-leaved Dock. 

 Sambucus canadensis, L. Elder. 

 Sanguinaria canadensis, L. Blood-root. 

 Sassafras officinale, Nees. Sassafras. 

 Scutellaria lateriflora, L. Skullcap. 

 Solanum dulcamara, L. Bittersweet. 

 Tanacetum vulgare, L. Tansy, 

 Taraxacum officinale, Weber. Dandelion. 

 TJlmus fulva,M\chx. Slippery Elm. 

 Veronica virginica, L. Culver's Physic. 

 Xanthoxylum americanum, Mill. Prickly Ash. 



A CONVENIENT HERBARIUM CASE 



containing four verticle rows of "pigeon" holes for dried plants was 

 on exhibition and contained the following: 



HERBAEIUM SPECIMENS ILLUSTRATING CERTAIN ECONOMIC FEATURES OF THE 

 FLORA OF MICHIGAN, CLASSIFIED AS FOLLOWS: 



NATIVE TREES AND SHRUBS SELECTED FOR THE COLOR OP THEIR LEAVES IN AUTUMN. 



a. Green. 



Abies balsamea, Miller. Balsam Fir. After fifteen years it usually loses its beauty. 

 Juniperus virginiana, L. Red Cedar. Becomes brown in winter. 

 Picea alba. Link. White Spruce. 



" nigra. Link. Black Spruce. A slow grower. 

 Pinus banksiana, Lambert. Jack or Scrub Pine, 



" resinosa. Ait. Norway or Red Pine, Better than the Austrian. 



" strobus, L. White Pine. 

 Thuya occidentalis, L. Arbor Vita3, White Cedar. 

 Tsuga canadensis, Carr. Hemlock. Needs protection from the strongest winds. 



b. Broivn. 



The plants under this head are so numerous and inconspicuous that no exhibit 

 was made. 



c. Yelloiv and orange. 



Acer saccharinum, Wang. Sugar Maple. 



" saccharinum, Wang., var. nigrum, Torr. and Gray. Black Maple. 

 Amelanchier canadensis, Torr. and Gray. Service Berry, Shad Bush. 

 Betula papyrifera, Marshall. Paper or Canoe Birch. 

 Corylus americana, Walt. Hazel-nut. 



" rostrata, Ait. Beaked Hazel-nut. 

 Fagus ferruginea. Ait. Beech. 

 Hamamelis virginiana, L. W^itch-hazel. 

 Larix americana, Michx. Tamarack. 

 Populus grandidentata, Michx. Large-toothed Aspen. 



" monilifera. Ait. Cotton-wood. 



" tremuloides, Michx. American Aspen, 

 Rhus toxicodendron, L. Poison Ivy. 



d. Scarlet, Crimson, Red. 



Acer rubr7im, Jj. Red Maple. 



*' spicatum. Lam. Mountain Maple, 

 Ampelopsis quinquefolia, Michx. Virginian Creeper. Our most valuable native 



vine. 



