ADDITIONS AND CORRECTIONS 311 



Page 278. POPULUS {c). 



P. grandidentata. Large-toothed Aspen, 75. February. D. Branchlets stout, 

 covered with grey down when young; buds grey, hairy. Ls. ov., 4, with 

 coarse undulating teeth, dark green above, grey below when young. 

 East North America. 



Page 279. POPULUS {d). 



P. laurifolia. 50. March. D. Like P. trichocarpa, but Is. lane, and branchlets 



yellowish grey. Siberia. 

 P. yunnanensis. 100. D. Like P. trichocarpa, but Is. usually broadest above 



middle. China. 



SALIX {a). 

 S. Bockii. 10. October. D. Young twigs covered with grey down. Ls. obov., 



I, deep green above, blue-white below, entire or slightly toothed. Stamens 



two. China. 

 S. Caprea, variety petidula. Kilmarnock Weeping Willow. 



Page 280. SALIX (6). 



S. Meyeriana. 50. March-April. D. Branchlets wine-coloured. Ls. ov., 

 oblong, 4, finely toothed, glossy green above, pale bluish green and 

 somewhat glaucous below. Catkins pinkish, stamens four. Natural 

 hybrid. 



Page 281. SALIX {c). 



S. magnifica. 20. D. Ls. broadly ov., 6, entire or nearly so, dull bluish-green 

 above, resembling magnolia. China, 



Etnpetraceae is out of place next to Salicaceae, with which it has little in common. 

 The affinities of the family are obscure, but it appears to be allied to Euphorhiaceae. 



Page 293. CUPRESSUS {h). 



C. Goveniana. 20, E, Like C. macrocarpa, but much smaller. Foliage orange- 

 scented when bruised. Male fls. and cones produced in great abundance, 

 the ground beneath becoming yellow with pollen. South California. 



Page 298. PINUS {c). 



P. Ayacahnite. Mexican White Pine, 100, E, Like P. excelsa, but cones much 



longer (up to 18), Mexico, 

 P. Montezutnae. Rough-barked Mexican Pine, 100, E, Bark thick and 



rough, Ls, 6, erect, glaucous green; sheath i, persistent. Cone 6X2i, 



scale with short hooked prickle, Mexico, 



Page 300, Thuya dolahrata, variety variegata. Ls, variegated with creamy 

 white. 



Tsuga Pattoniana should come under [h). The species is distinguished by the 

 radial arrangement of the Is., which are rounded or keeled above, and with white 

 on both sides. 



