CONIFERALES 291 



length of 23-35 cm., has a greater diameter, and its average weight 

 is probably greater than that of P. lambertiana. Another western 

 pine, Pinus sabiniana, has a cone from 16 to 26 cm. in length, nearly 

 globular in form, and very heavy. In Araucaria bidwilli the cone 

 reaches a diameter of 30 cm. Since the cones in this family are nearly 

 spherical, this cone may be heavier than any of the longer cones of 



Fig. 293. — Pseiidotsuga taxifolia: ovulate cone; natural size 



Pinus. In other species of Araucaria and in Agathis the cones are 

 smaller, the cones of the immense Agathis australis, the Kauri of 

 New Zealand, being only 6 cm. in diameter. In Sequoia gigantea, the 

 largest of all trees, the cones are only from 4-6 cm. in length; and in 

 S. sempervivens, the tallest of conifers, reaching a height of 1 1 5 me- 

 ters, the cones are even smaller, seldom more than 1.5 cm. in length. 

 The cones of Tsiiga canadensis and Larix laricina are also about 1.5 

 cm. in length. 



The berry-like cones of Juniperus are still smaller, that of /. com- 

 munis having a diameter of 6-8 mm. In Taxus the seed, including 

 the aril, is from 9 to 13 mm. in diameter. 



