SYNOPSIS OF PINES. 



341 



Pinus. — Group 2. Abies, Endl.; Picea, Loud.;— Silver Firs. 

 (Cones axillaiy and upright. Leaves solitary, flat, silvery beneath.) 



o. r. bracteata, I5iU it. 





P. firma, tree. 



7. P. nobilis, Zarge f/ee. 



*20. 



P. homolepis, 20-30 it. 



o. P. xraseri, 1U— 2\) it. 



21. 



P. bmcla. 



y.. Jr. nana. 



*oo 



zz. 



P. concolor. 



10. P. religiosa, s h. 



23. 



P. balsamea, 40-50 ft. 



11. it. x\ oiumanniana, ou it. 





Jr. aniaouis, loll— JsUU It. 



12. P. Abies du Roi, 50-100 ft. 



25. 



P. grandis, 170-200 ft 



Picea, Linn. SiZver i^ir. 



26. 



P. lasiocarpa. 



13. P. pendula. 



27. 



P. Pindiw, 80-100 ft. 



14. P. tortuosa. 



28. 



P. Webbiana, hf 80-100 ft 



15. P. pyramidalis. 



29. 



P. Pichta, 60-70 ft. 



16. foliis variegatis. 



30. 



P. Pinsapo, 60-70 ft. 



*17. P. leioclada. 



*31. 



P. Mertensiana. 



18. P. Cephalonica, 60 ft. 







This is perhaps the most remarkable section in the family of Pines, in 

 respect to both the size and beauty of the trees. Their forms are gene- 

 rally pyramidal, or of the spiry cone. P. Abies, or Silver Fir, is a trun- 

 cated pyramid, and we believe that many of the others will approach 

 that form when they have grown long enough among us to attain to 

 their maturity. P. Pindrow and Webbiana, from the Himalayas, 

 assume a columnar shape. P. Cephalonica, if not a broad-headed tree, 

 has such long horizontal branches as to produce a very broad cone : the 

 same remark applies to P. Pinsapo. The form and disposition of the 

 branches impart the characteristic features of this group. In 7 and 29 

 they are fiat and tabulated; in 18 and 30 they are rigid, horizontal, and 

 verticillate, giving a very symmetrical habit to the trees ; in 27 and 29 

 they are close, spreading m whorls, with drooping branchlets. The. 

 foliage in 7, 18, and 30 is closely set : in 7, 8, 12, 13, 14, 15, 23, and 27 

 it is of a dark green ; in 29 of a vivid green ; in 18 and 30 of a lighter 

 vivid green ; in 11 of a light pale green; and in 25 of a silvery green. 

 The branchlets of some sorts such as nobilis, Cephalonica, and Webbi- 

 ana, are liable to be injured by spring frosts when the trees are young ; 

 but if planted in shady places or in late situations they seldom receive 

 injury. The timber of the silver firs is generally of inferior quality. P. 

 Cephalonica produces hard and durable timber. Though many of this 

 group will thrive tolerably on poor ground, they attain much greater 

 perfection in soils of good quality. P. Webbiana thrives in poor clay 

 soils. 



