20 BOTANY OF MICHIGAN 



Iosco Country and often in large groves. Southern limit on east side of 

 the State near Port Austin, Huron County. In Presque Isle County near 

 Onaway and near Mio, Oscoda County; often one foot and more in 

 diameter, straight and free from limbs, being often cut for lumber. 



Pinus resinosa Ait. Red pine. Norway pine. Frequent and often 

 abundant in dry sandy ground from Arenac County to Mackinac Island 

 Small trees and seedlings abundant. Southern limit on east side of state 

 near Port Huron, St. Clair County. 



Larix laricina (Du Roi) Koch. Tamarack. Scattering throughout 

 and trees usually small in wet swampy ground. Reported as formerly 

 abundant . 



Picea canadensis (Mill.) BSP. White spruce. Occasional from near 

 Bay City (G. M. Bradford) to Mackinaw City in dryish ground. Abun- 

 dant about St. Ignace and on Mackinac Island. 



Picea mariana (Mill.) BSP. Black spruce. In swamps often with 

 tamaracks. Frequent throughout. 



Abies balsamea (L.) Mill. Balsam. First noticed south of Tawas City 

 in Iosco County and frequent from there to Mackinac Island where it is 

 abundant. Southern limit on east side of State near Port Austin in 

 Huron Count v. 



Tsuga canadensis (L.) Carr. Hemlock. Occasional from Bay County 

 to Mackinac Island. Trees usually small. Southern limit on east side 

 of State near Port Huron, St. Clair County. 



Thuja, occidental-is L. Arbor vitae. White cedar. More or less abun- 

 dant throughout near the Lake Huron shore. Trees usually small. 

 Formerly often abundant in "cedar swamps" now destroyed by lum- 

 bering and fires. Southern limit near shore on east side of State is Port 

 Huron, St. Clair County. 



Juniperus communis L. Common juniper. Xear Alpena and St. 

 Ignace. Apparently infrequent. 



Juniperus communis depressa Ait. Low juniper. Common on or near 

 the Lake Huron shore from Bav County to Mackinaw City. Abundant 

 about St. Ignace and on Mackinac Island. 



Juniperus horizontalis Moench. Shrubby red cedar. First noticed on 

 and near the sandy beach of Lake Huron and on Thunder Bay Island 

 in Alpena County. Frequent from there to St. Ignace. 



TYPHACEAE. Cat-tail Family 



Typha latifolia L. Common cat-tail. Common and often abundant 

 throughout in wet swampy places and shallow water. 



Typha angustifoUa L. Narrow-leaved cat -tail. Bay County in 

 swampy ground. G. M. Bradford. 



