92 



Incense Cedar 



The trunk is enlarged at the base to two or three times its normal diameter, 



above which it is shallowly 

 fluted and tapering. The 

 bark is 5 cm. thick, deeply 

 furrowed into coarse 

 ridges which are some- 

 what scaly, fibrous, and 

 Hght brown. The twigs 

 are slender, usually nearly 

 erect, light green, becom- 



ing reddish brown and 



shining; the lateral twigs 

 are often 15 to 18 cm. 

 The leaves are 



long 



closely appressed, awl- 

 shaped, 5 to 10 mm. long, 

 long-pointed, keeled 

 above, concave beneath, 

 somewhat spreading at 

 the apex. The flowers 

 and fruit are very similar 

 to those of the foregoing 

 species. 



The wood of the Pond 

 cypress is said to be 

 heavier and stronger than 



that of the Bald cypress. It has been in cultivation for many years, especially 



in Europe, where it has passed as a native of Asia under the name of Glyptostrohus 



pendulus EndHcher. 



Young shoots from the base of the tree often bear the linear spreading leaves 



of Taxodium distichum, indicating their ancestral affinity. 



Fig. 69. Pond Cypress. 



IX. INCENSE CEDAR 



GENUS HEYDERIA K. KOCH 



SPECIES Heyderia decurrens (TORREY) K. KOCH 



Libocebrus decurrens Torrey 



MAGNIFICENT evergreen tree occurring in a variety of soils and 

 situations, from Oregon southward through CaHfomia, east into 

 Nevada, and beyond our area into Lower California, usually at alti- 

 tudes of from 900 to 1800 meters. It attains a maximum height of 

 45 meters, with a trunk diameter of 2.4 m. 



