192 A HANDBOOK OF CONIFERS 



C. arizonica, C. sempervirens, C. macrocarpa, C. Goveniana, 

 C. lusitanica. 



Section II. Chamcecyparis. 



Leaves entire in margin, the lateral pair boat shaped, the 

 facial pair flattened. Branchlet systems usually flattened. 

 Cones small, not more than I in. in diameter, usually ripening in 

 one year. Seeds 1 to 5 on each scale. Cotyledons always 2. 



C. ohtusa, C. Lawsoniana, C. pisifera, C. nootkatensis, C. 

 thyoides, C. formosensis. 



Key to Cupressus. 



Branchlet systems flattened, pinnae in one plane. 



Seeds more than 5 on each scale, cones ^|~ in. in diameter. 

 Leaf -tip appressed. 



Branchlets equal-sided, leaves obtuse, cone scales 



without prominent processes. — C. torulosa. 

 Branchlets compressed, leaves acute, cone scales with 

 prominent processes. — C. lusitanica, var. Benthami. 

 Leaf- tip spreading. 



Branchlets, compressed, pendulous, foliage glaucous. — 

 G. cashmiriana. 

 Seeds 1 to 5 on each scale, cones |-| in. in diameter. 



Lateral leaves on branchlets larger than dorsi-ventral 

 leaves. 

 Leaves obtuse, non-glandular, foliage with conspicuous 



Y-shaped white markings below.— G. ohtusa. 

 Leaves acute, furrowed on back, foliage olive green, 



without white markings. — G. funebris. 

 Leaves acute, usually glandular, foliage green on 

 under-side or with ill-defined white markings. — G. 

 Lawsoniana. 

 Lateral and dorsi-ventral leaves on branchlets nearly equal. 

 Foliage with white markings on lower surface. 



Leaves sharply pointed, cones globose, \ in. in diameter. 

 — G. pisifera. 

 Foliage without white markings on lower surface. 

 Leaves acute, foliage pale green, often tinged with 

 bronze, cones egg-shaped eUipsoid. — G. formosensis. 

 Leaves acute or sub-acute without glands, foliage 

 dull green, rank-scented, cones globose, \ in. in 

 diameter, scales 4, each with a prominent central 

 point. — G. nootkatensis. 

 Leaves acute, glandular on the back, cones \ in. 

 in diameter, glaucous. — G. thyoides. 



