( 327) 



smaller than the scales. Scales of the cone 

 persistent and elevated into a tumor (umbo). — 

 IC. Leaves 1-5, from a squamous sheath. 



1. P. Sabixiana Dougi. Leaves in threes; 

 cones on a well developed peduncle; apophyses 

 of tlie scales stout, projecting. — Napa Valley. 

 Spring. 



"Blue-pine." Seeds eaten by the Indians. 



2. P. iNSiGNis Dougl. Leaves in threes; 

 cones on short peduncles in clusters. Scales 

 toward the base enlarged, thick and hemis- 

 pherical. — IC. Bolinas heights. Santa Cruz 

 mountains. Spring. 



*' Monterey pine." Frequently cultivated. 



3. P. TUBEKCULATA Gordon. Leaves in threes; 

 cones verticillate, peduncled; scales angular, 

 enlarged by a conical umbo. — Marin County. 

 Spring. 



4. P. MURICATA Don. Leaves in pairs- 

 Bolinas. Spring. 



2. Pseudotsuga Carriere. Douglas Spruck. 



Flowers from the axils of last year's leaves, 

 crowded; S on elongated axes; scales of ? flow- 

 er considerably smaller than the bracts, per- 

 sistent. Cones pendulous. — 'p . Leaves dis_ 

 tichous, petioled. 



1. P. DouGLASii Cavr. — Tamalpais. Santa 

 Cruz mountains. Spring. 



