PICEA 



The characters of the Genus Picea and of the two sections into which it is divided 

 have been given in Vol. I. pp. 75-76, with a description of the species belonging to 

 the section Omorica. At that time the Sikkim spruce [P. spinulosa), one of this 

 section, was imperfectly known, and a full account of it is now given at the end of 

 this article. Seep. 1392. 



In the section Eu-picea, the leaves are quadrangular or rhombic in section, and 

 bear stomatic lines on all their four sides. About fifteen species of quadrangular- 

 leaved spruces are known, 1 which may be readily distinguished by the following key, 

 based on the characters of the branchlets, buds, and leaves. 



Key to Section Eu-Picea 



I. Branchlets quite glabrous. 



* Leaves on lateral branches radially arranged, spreading uniformly on all sides, 



1. Picea Smithiana, Boissier. Western Himalayas. Seep. 1366. 



Branchlets pendulous, grey. Buds large, resinous, pointed. Leaves slender* 

 about 1 \ in. long. 



2. Picea Maximowiczii, Regel. Japan. See p. 1374. 



Branchlets not pendulous, reddish brown. Buds small, resinous. Leaves, 

 f to \ in. long. 

 ** Leaves on lateral branches in an imperfect radial arrangement, not pectinate in two 

 sets on the lower side of the branchlets, which are not pendulous. 



3. Picea Schrenkiana, Fischer and Meyer. Central Asia, in the Alatau and 



Thianshan ranges. See p. 1364. 

 Branchlets ashy grey. Terminal buds subglobose, girt with a ring of keeled 

 pointed pubescent ciliate scales. Leaves rigid, sharp-pointed, f to i in. 

 long. 



4. Picea pungens, Engelmann. Wyoming, Colorado, Utah, New Mexico. See 



p. 1389. 

 Branchlets at first glaucous, becoming reddish brown. Buds with the tips of 

 their upper scales usually loose and reflexed. Leaves stout, rigid, with a 

 hard sharp-pointed apex, % to i in. long. 



1 Not including the spruces of China, of which two or three species introduced by Wilson are in cultivation at Coombe 

 Wood, but are too young to describe. 



VI 1335 B 



