234 A MANUAL OF THE COXJFEK.SJ. 



and clothed with small scale-like deep green foliage, arranged in 

 four rows, and very glaucescent. 



Habitat. — Northern California, on the Shasta Mountain. 



Introduced in 1852 by the Oregon Association, through their 

 collector, John Jeffrey. 



It was named in compliment to Mr. McNab, the late respected Curator 

 of the Edinburgh Botanic Garden. 



Oupressus macrocarpa. — A large tree of vigorous growth, vari- 

 able in habit under cultivation. The branches are numerous, close 

 set, and in the usual type, horizontal with the extremities ascending ; 

 the secondary branches are generally lateral and opposite, but they 

 are also produced from all sides of the primaries, especially in the 

 fastigiate variety. The foliage is of the brightest green, by 

 which this species is easily distinguished from every other. 



Habitat. — California, in the neighbourhood of Monterey. 



Introduced in 1838, by Mr. A. B. Lambert* 



Oupressus macrocarpa fastigiata has its branches ascending 

 and closely pressed around the trunk. It resembles in habit the 

 upright Roman Cypress. 



The two forms of Oupressus macrocarpa above described are said 

 to have originated from different sources. The spreading kind was 

 introduced by Mr. Lambert, who sent seeds to the Horticultural 

 Society of London without any specific name, and the plants raised 

 from them were called 0. Lambertiana, in compliment to the donor. 

 This variety became widely distributed, owing to the facility with 

 which the Cypresses can be propagated by cuttings, and is still familiarly 

 known in gardens as C. Lambertiana. In 1846, Hartweg, at that 

 time collecting for the Horticultural Society in California, sent home 

 seeds of this Cypress under the name a£ &. macrocarpa, which he 

 gave .it on account ai the large size of its fruit or strobiles. The 

 plants raised from these seeds were fastigiate in habit, and had an 

 erect or continuous loader. Although Hartweg's name, macrocarpa, 

 was given subsequently to Gordon's Lambertiana, the former has 

 priority of publication, and is therefore retained. It is now well 

 known that plants raised both from Californian and European grown 

 seeds vary much in habit, and that forms intermediate between the 

 spreading habit of Gordon's G. Lambertiana and the fastigiate growth 



* Gordon's Pinetum, p. 92, 



