GYMNOSPERMS ON STANFORD GROUNDS ABRAMS 83 



A small genus containing but 4 species, all of which are native of Japan 

 and China. 

 Leaves appearing 2-ranked by a twist in the petiole. 



Leaves y-z'Y^ i ncn l n g> abruptly acute. 1. C. drupacea. 



Leaves about 2 inches long, gradually tapering from near base. 



2. C. Fortunei. 

 Leaves spreading from all sides, at least on the principal shoots, spiny-tipped. 



3. C. pedunculata. 



1. Cephalotaxus drupacea Siebold. 



Leaves appearing 2-ranked and opposite, l /2-^. inch long, scarcely j/ 

 inch wide, abruptly acute, margins not revolute; fruit elliptic, about ^4 

 inch long ; stone smooth. 



Native of northern China and Japan, where it attains a height of 30-40 

 feet. One ovulate shrub is at the west end of Encina Garden and a couple 

 of small staminate specimens are in the nursery. 



2. Cephalotaxus Fortunei Hook. 



Leaves 2-ranked, margins thin, slightly revolute, gradually tapering to 

 the sharp-pointed apex, about 2 inches long, over l /% inch wide. 



Tree 40-60 feet high with long, slender, drooping branches. Native of 

 northern China. One small staminate tree is north of the live oak on the 

 Mausoleum lawn. 



3. Cephalotaxus pedunculata Siebold. 



Leaves on leading shoots and principal branches scattered on all sides 

 of the stem, \y 2 inches long, sharply acute, margins distinctly revolute. 



A small Japanese tree, 20-25 feet high, with the spreading branches in 

 whorls. 



One small sterile shrub in very poor condition is in the eastern part of 

 the Cactus Garden. 



3. Torreya. 



Leaves flat and linear, appearing 2-ranked, spiny-tipped. Flowers 

 dioecious, axillary; pollen sacs 4, arranged in a semi-circle; fruit drupe-like, 

 the greenish aril completely enclosing the stone ; endosperm nutmeg-like. 



A genus of four species, widely separated geographically and of very 

 local distribution. One is in Florida, one in California, and the other two 

 are in China and Japan. 



