12 i THE BOOK OP EVERGREENS. 



many years to attain its full size. The specimen in our own 

 collection is so small that we cannot report any very satis- 

 factory experience with it in respect to hardiness, but from 

 the situation where it is mostly found, and from its being so 

 closely allied to P. insignis and P. radiata, both of which 

 are exceedingly unsatisfactory here, we are inclined to be 

 somewhat skeptical as to its future usefulness with us. 



Nuttall says it is nearly allied to P. patula, the Long- 

 leaved Mexican Pine of Schiede, which is also tender; we 

 have, therefore, not a very flattering prospect before us in 

 attempting to acclimate it. Timber, very hard, and dark 

 red color. 



SEC. III. QUI3LI3. FIVE LEAVES IN A SHEATH. 



31, P, aristata, Engelmann. AWXED-COXED PIXE. 

 Leaves from 1 to 1-^ inches long, crowded from the axils 

 of ovate, acuminate, brittle, at first light-brown scales, 

 which, persisting longer than the leaves themselves, cover 

 the branches with their rough blackish remains ; incurved, 

 entire, abruptly acute, light-green on both sides. Cones, 

 2^ to 2 inches long, oval, resinous, dark purplish-brown 

 color; scales, terminating in a slender, incurved niucro. 

 Seeds, small. Cotyledons, 7. 



We introduce this new Conifer in this place, on account 

 of its undoubted hardiness and adaptability to the climate 

 of the Middle States. Although of very recent introduc- 

 tion, young plants are now being tested, both in England 

 and this country, and we look forward with great interest 

 to its permanent and successful cultivation. 



It was discovered by Dr. C. C. Parry, growing in the 

 alpine regions of Colorado Territory, above the limits of 

 Pinus flexiliS) Abies Engelmannii, and other sub-alpine 

 Conifers ; indeed, it first makes its appearance, in ascending 



