54 



Spruce, are included because of their rather extensive occurrence 

 in forest or other plantations. Illick tabulates i86 as the number 

 of native trees in the State, with 29 other species introduced. 

 A number of the less common or less important species are passed 

 over with but brief mention. Only two hawthorns {Crataegus 

 Crus-galli and C. coccinea) are described, admittedly no attempt 

 being made to include the various other 30 hawthorns which 

 some botanists would claim as arborescent species in the western 

 half of the State. For general purposes, such as Illick's "Trees 

 of Pennsylvania" is meant to serve, it is probably best not to 

 include more until the status of these forms of Crataegus is better 

 known. The reviewer has evidence of Pinus rigida northwesterly 

 up to a line from Beaver to Warren counties, approximately the 

 line of the terminal moraine, and this is probably the north- 

 western range of the species in Pennsylvania. The Ohio records 

 also seem to bear out this relation of range to the terminal 

 glacial moraine. Approximately the same thing holds also for 

 Pimts. virginiana. 



O. E. Jennings. 



NEWS NOTES FROM THE FOREST SERVICE 



Colorado Springs Maintaining a Tree Nursery for Highivay 



Planting 



The advantages of beautiful as well as well-paved highways 

 is keenly felt by citizens of many localities, and in Colorado 

 Springs, Colo., the local automobile club is taking a practical 

 step toward attaining these advantages by a definite program 

 of tree planting along the highways leading into the city. Ac- 

 cording to present plans the club will maintain a nursery of its 

 own, buying seedling stock or tree seed, and raising the stock 

 until it is of sufficient size to put out along the roads. 



