200 Postelsia 
arranged in whorls of three or four. They re- 
tain this juvenile form much longer than the 
seedlings of Thuja, and it is not uncommon for 
young plants 20 centimeters high to show little 
trace of the mature form of foliage. 
The wood of this cypress is light yellow, 
very even grained and fragrant. It is one of 
of the finest woods produced in this region, and 
should be as valuable as the red cedar of the 
eastern United States. 
Jumperus. Linneus, Sp. Pl. 1038.1752: 
Trees or shrubs with aromatic wood. Leaves 
spreading, linear subulate, or scale-like and 
appressed. Flowers minute, usually dicecious, 
axillary or terminal on short axillary branches. 
Staminate flower consisting of an axis bearing 
opposite or ternately whorled peltate stamens, 
each with two to five pollen sacs. Pistillate 
flower consisting of an axis bearing three to six 
opposite or ternately whorled carpels, often with 
modified sterile scales at the base. Fruit fleshy, 
berry-like or drupaceous. 
A genus of about thirty species which form 
three well-marked sections. Of these the two 
following are represented in America. 
