FOREST-TREES OF THE UNITED STATES. 17 





No. 161. Cephalanthus occidentalis, L., var. Californica. Button-bush. 

 California. This is seldom more than a shrub ; but in California it 

 sometimes grows 25 to 30 feet high, with a trunk 12 to 20 inches in diam- 

 eter. 



No. 162. Omttarda Blodgettii, Suttle. South Florida. 



No. 163. Randia clusicefolia^ Chap. Seven-years Apple. South 

 Florida. 



No. 164. Pinckneya pubens, Michx. Georgia Bark. South Carolina to 

 Florida. A small tree in the lower districts of Georgia and in Florida, 

 rarely exceeding the height of 25 feet and a diameter of 6 inches. The 

 bark is extremely bitter, and has been employed in the treatment of 

 intermittent fevers. It is closely related botanically to the Cinchona, 

 which furnishes the Peruvian bark of commerce. 





ERICACEAE. 



No. 165. Vaccinium arboreum, Marshall. Farkleberry. Virginia and 

 southward. A shrub or small tree sometimes 20 feet high, growing from 

 Virginia and Southern Illinois southward. 



No. 166. Oxydendrum arboreum, DC. Sourwood or Sorrel-tree. 

 Pennsylvania and southward. This tree grows chiefly in the mountain- 

 ous districts of the Alleghanies from Pennsylvania southward. In fertile 

 valleys, at the foot of the mountains, in North Carolina and Tennessee, 

 it attains a height of 50 feet. The common name sour-tree is derived 

 from the acidity of its leaves. The flowers are white, and in spikes 5 

 or 6 inches long. They are very ornamental, and begin to be produced 

 when the tree is 5 or 6 feet high. 



No. 167. Kalmia latifolia, L. Calico-bush or Mountain Laurel. Penn- 

 sylvania and southward. A beautiful evergreen shrub, sometimes 

 attaining the size of a small tree. It is very ornamental and deserving 

 of cultivation. 



No. 168. Rhododendron maximum, L. Rose Bay or Great Laurel. 

 Pennsylvania and southward. Like the preceding, an evergreen shrub 

 of great beauty. It has been much improved by cultivation. 



No. 169. Rhododendron Calif ornicum, Hook. California Rhododen- 

 dron. Pacific coast. 



No. 170. Arbutus Menziesii, Pursh. Madrone-tree. California and 

 Oregon. 



No. 171. Arbutus Texana. This species or variety grows in Texas. It 

 is mostly a large shrub ; sometimes, however, becoming 25 feet high 

 and 8 or 10 inches in diameter. The leaves are smaller and the flowers 

 less panicled than in the California species. The timber is said to be 

 almost imperishable. 



No. 172. Arctostaphylos glauca, Lindl. Manzanita. Oregon and Cali- 

 fornia. There are several species of this genus on the western coast, 

 mostly shrubs or small trees, which have been much confused. The 

 specimen under this number is from Southern California, and has a large 

 drupe-like fruit, with a consolidated nut. These berries are pleasant to 

 the taste, and 'much employed as food by the Indians of that region. 



No. 173. Arctostaphylos tomentosa, Doug. Manzanita. California and 

 Rocky Mountains. 



No. 174. Arctostaphylos pungens, H. B. K.Manzauita. California 

 and Rocky Mountains. 

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