20 DWABF AND SLOW-OBOWING C0NIFEB8 



tains it is possible to walk on dwarf mats of the Balsam 

 Fir. The plant which Knight described was very possibly a 

 form collected from such an altitude which subsequently 

 reverted to normal. In any case, I cannot trace it in 

 cultivation. 



A. concolor, Lindley and Gordon. 



A native of Colorado, Arizona, and California, and 

 introduced to Europe by Lobb in 1851. According to 

 Engelmann, it grows to 150 feet in height. Its foliage is 

 very glaucous, and all its dwarf forms are attractive. 



A, concolor, var. glauca compacta, Hort. 



Buds and branches same as the type. Branchlets: 

 annual growth 1 to 2 inches; stouter, stiffer, and closer 

 together than the type. Ascending and arching at their 

 tips. Leaves variable, straight, or falcate, thinner than 

 the type, and from 1 to If inches long. Very glaucous. 

 Makes an irregular shaped compact bush, inclined to grow 

 lop-sided. At Curragh Grange, Co. Kildare, is one — an 

 irregular flat -topped bush, 3 feet by 2 feet. 



A. concolor, var. globosa, Niemetz (" Mitt. d. d. d. Ges.," 

 1905, 212). 

 Raised by Niemetz at Temesvar, Hungary. In 1905 

 this had made a globular bush, 70 cm. through, with 

 shorter branches than the type. 



A. concolor, var. pendula, Simon-Louis (" Mitt. d. d, d. 



Ges.," 1896, 64). 

 Buds, branches, and branchlets scarcely differing from 

 the type, but branches and branchlets very pendulous, 

 almost prostrate; leaves mostly sickle-shaped and very 

 glaucous grey-green. This form was raised by Simon- 

 Louis Freres at Plantiers, near Metz. With me it grows 

 very slowly. 



A. concolor, var. violacea compacta, Beiss. (1891, 479). 



A seedling form, making a thickset roundish pyramid. 

 Foliage very glaucous. 



