HARDY CONIFEROUS TREES 129 



out from this cause. Shelter, but not too close 

 confinement, and light sandy loam have been pro- 

 ductive of the finest specimens in this country. 



P. EDULis, Engelmann. (Synonyms : P. cem- 

 broides, Ziiccarini ; P. edulis, Voss.) New Mexico, 

 Colorado, Texas. About 1848. — In this country 

 Pinus edulis forms a bush-like tree, as wide as it 

 is high, which in a specimen at Penrh^m Castle in 

 Wales is 16 feet. The trunk is short, with the 

 main branches striking out at a height of 4 feet, 

 these again being much subdi\ided. The leaf 

 arrangement is somewhat irregular, but usually 

 there are three in a sheath, though sometimes two, 

 each about li inches long, and of a peculiar grepsh 

 green colour. Cones oblong-globose, 2 inches long 

 by li inches wide, and borne mostty in clusters 

 of two, three, or five ; the wingless seeds, which 

 are half an inch long, closely resembhng those of 

 P. Cemhra. The cone-scales are hard, thick, and 

 persistent, of a warm chocolate browTi colour, and 

 each provided with a five-sided umbo, which im- 

 parts a rough and uneven appearance to the cones. 

 Rarely seen growing in this country, but from its 

 neat bushy habit, w^hen planted amongst rocky 

 debris and in not too exposed situations, it certainly 

 merits attention. Probably it would succeed best 

 at the seaside. 



P. EXCELSA, Wallich. Temperate Himalaya. 

 1823. — This commonly cultivated species is readily 

 recognised by its wide-spreading branches and 

 wealth of long, pendulous, silvery green leaves. 

 The branch-spread is wide in proportion to the 

 height of the tree, and with its pendulous fohage 

 and pale grey bark, a well-growTi specimen has a 



K 



