CONE-BEARERS, 53 



FOUrth CenUS, TSUCA Oarriere. 



THE HEMLOCK-SPRUCES. 



The branchlets of the Hemlock-Spruce are rough 

 like the True Spruce; the cones are also terminal, 

 very small; the bracts are similar; but the leaves are 

 petioled (i. e., narrowed at base into a foot-stalk), 

 and they each have a single resin-duct on the back; 

 the seeds are provided with resin vesicles on the up- 

 per surface in this respect resembling the Fir. Male 

 flowers at the end or distributed along the short 

 branchlets. Six species, 2 in Northwest America: 



No. 1 Western HemlOCk - ? T . Mertcnsiana, Carri^re. 

 Picturesque trees of the Northwest, reaching 

 Northern California. Cones decorating the short 

 branchlets, ovate, \ inch long. Branches long, 

 drooping, with flattened, fan-like branchlets and 

 short, linear, light green leaves, about \ inch long, 

 mostly in two ranks. 



No. 2 Alpine HemlOCk - T. Pattoniaiw, Engelm. 



Alpine or subalpiue trees of the Sierra, Cascade 

 and Rocky Mountains, often attaining a large size, 3 

 to 6 feet in diameter, and retaining their limbs these, 

 especially the upper ones, gracefully drooping and 

 profusely decorated w T ith the large, purple, pendent 

 cones, 1J to 3 inches long. 



