CONIFER. 
SILVA OF NORTH AMERICA. 
101 
Cupressus may be raised from seeds, which germinate the first season, and by cuttings made from 
leading branchlets of the year.’ 
Cupressus, the classical name of the Cypress-tree, was adopted by Linneus from Tournefort® and 
other pre-Linnzan botanists. 
Cypress-trees of Pacific North America, although half a dozen are 
reported on the leaves and branches of Cupressus macrocarpa, 
including two species of Pestalozzia, which, however, are not con- 
fined to Cupressus. Cupressus thyoides of the Atlantic coast region 
is attacked, however, by two very characteristic Rust fungi, Gym- 
nosporangium biseptatum, Ellis, and G'ymnosporangium Ellisii, Far- 
low. The former causes oval or nodular swellings on the branch- 
lets, attacking even the larger branches and sometimes the main 
trunk. These tumor-like bodies are often of a large size, so that 
a tree affected by this fungus can be recognized from a consider- 
able distance. Its cluster-cup, Restelia Botryapites, Schweinitz, is 
found on the leaves of Amelanchier Canadensis, Medicus. G'ym- 
nosporangium Ellisii causes a fasciation of the smaller branches, 
which then resemble more or less fan-shaped brooms. The external 
portion of the fungus is smaller and less gelatinous than in any 
other species of this genus ; its cluster-cup stage is unknown. A 
few small fungi also attack the leaves and twigs of these trees, 
including two species of Hendersonia and Pestalozzia ; and Pitya 
Cupressi, Saccardo, appears on the leaves with small flat cups or 
disks of an agreeable orange-color. A rotting of railway-ties 
made of the wood of this species is reported to be due to the 
growth of Agaricus Campanella, Batsch, a small toad-stool common 
on the trunks of several trees in Europe and America. 
! Daveau, Rev. Hort. 1887, 88. 
2 Inst. 587, t. 358. 
CONSPECTUS OF THE NORTH AMERICAN SPECIES. 
EUCUPRESSUS. 
rangular; leaves centiculate. 
Leaves obscurely glandular. 
Branchlets stout ; leaves dark green . 
Branchlets stout; leaves glaucous . 
Branchlets slender ; leaves dark green 
Leaves conspicuously glandular. 
Branchlets slender; leaves dark green, often slightly glaucous . . woe ee we A 
Cones small, maturing the first season; seeds 1 to 4; branchlets flattened in 
CHAMZCYPARIS. 
one horizontal plane ; leaves entire. 
Bark thin, divided into flat ridges. 
Branchlets slender, compressed, their leaves often conspicuously glandular . . . . 5. 
Branchlets stout, slightly flattened or subterete ; leaves usually eglandular . . . . 6. 
Bark thick, divided into broad rounded ridges. 
Branchlets slender, compressed ; leaves conspicuously glandular. . - - - - + + 7. 
Cones large, maturing the second season; seeds numerous; branchlets quad- 
1. C. MACROCARPA. 
. C. ARIZONICA. 
3. C. GOVENIANA. 
bo 
C. MAcNABIANA. 
C. THYOIDES. 
C. NooTKATENSIS. 
C. LAWSONIANA. 
