62 CUPRESSUS ; OR 



Conifers, many years ago, detected the mistake, and named this 

 plant in compliment to Mr. Knight of Chelsea. It has since 

 received other names, as indicated above. Timber, excellent. 



No. 8. CupRESSUs Lawsoniana, Murray. Messrs. Lawson's 



Cypress. 

 Syn, Chamaecyparis Boursieri, Carriere. 



Leaves, on the adult plants ovate, in alternate opposite pairs, 

 closely pressed, in four imbricated rows, and of a glaucous 

 green colour, with a pure white margin, while those on the 

 young plants are lanceolate, sharp-pointed, spreading at the 

 ends, whitish at the margins, and frequently furnished with a 

 small gland on the back. Branches, crowded, flexuose, and 

 more or less ascending ; branchlets, very slender, flattened on 

 the upper and lower surfaces, much divided, bending alternately 

 inwards and outwards, and thickly covered with decurrent 

 leaves in alternate opposite pairs, closely pressed together on 

 the adult plants, but spreading on the younger ones. Cones, 

 solitary, terminal, many-sided, of a light brown colour, covered 

 with a glaucous bloom when young, and about the size of a 

 large pea, on rather a short footstalk. Scales, mostly six in 

 number, but sometimes more, flat, with a rough external surface, 

 of a corky texture, light brown, and irregularly four or five- 

 sided, with an elevated straight point in the centre. Seeds, some- 

 what ear-shaped, rather large, and mostly three under each scale. 



A large graceful tree, growing 100 feet high, and two feet in 

 diameter, found in the Shasta and Scots valleys, and, according 

 to JNIr. Murray, along the banks of streams in a valley in the 

 mountains of Northern California, in lat. 40° to 42° where it 

 formed the handsomest tree seen by him in his whole expedition • 

 the habit of the tree being the most graceful, with the branches 

 at first curved upwards, like those of the common Spruce, and 

 towards the ends hanging down like an ostrich feather, with the 

 leading shoots, when young, drooping like those of the Deodar. 



This beautiful tree is nearly related, and in some respects 

 somewhat resembles the Cupressus Nutkaensis (syn. Thuiopsis 



