MEXICAN PINES. i85 



Pinus leiophylla.— A tall tree with a pyramidal head, horizontal 

 branches, subpendulous at the extremities, and long, slender, drooping 

 foliage. It is a native of the mountains between Cruz Blanca and 

 Jalacingo, and some other places in Mexico. It is quite tender in 

 England. 



Pinus Montezumae,— A large tree " attaining a height of from 

 45 to 60 feet, with large irregular branches, thickened branchlets, and 

 leaves 10 inches long, but shorter in old trees."* It is one of the 

 commonest of the Mexican Pines, and was discovered early in the 

 present century, but not introduced into England till Hartweg sent 

 home cones and seeds in 1839. It is not hardy, t 



PillUS OOCarpa. — A medium-sized tree with an open head, the 

 lower branches decumbent, rather rigid leaves, and small egg-shaped 

 cones, whence the specific name. It was found by Schiede between 

 Ario and Monte Jorullo, and afterwards by Hartweg, who sent seeds 

 for the first time to Europe in 1838. It is not hardy. 



Pinus pseudo-strobus. — A large tree with spreading branches, 

 much resembling the Himalayan Pine (P. excelsa), but having lighter 

 green and more glaucous foliage. It is a native of the mountains of 

 Aguanguco and Orizaba, and other parts of Mexico. It is quite 

 tender. 



PinUS Russelliana. |— One of the handsomest of the Mexican 

 Pines. It has robust spreading branches, with the foliage tufted at 

 their extremities ; the leaves are a foot long, bright green, and grace- 

 fully pendulous. It is found on the Eeal del Monte, in Mexico, 

 where it was discovered by Hartweg, and named by Dr. Lindley in 

 compliment to the Duke of Bedford. It is not hardy. 



The introduction of the Mexican Pines described above, and 

 others from California, has placed Hartweg's name among the most 

 prominent of those who have enriched the gardens of Europe with 

 fine Conifers. The following is a short sketch of his life : — 



Karl Theoder Hartweg was born in 1812, at Carlsruhe, in the 

 Grand Duchy of Baden, and descended from a long line of gardeners. 

 Besides the advantages of his father's experience, he enjoyed the 



* Carriere, Traiti Giniral des Oonifires, p. 415. 



+ According to Parlatore, Pinus Zindleyana and P. macrophylla are but varieties of P. 

 Montezumoe, the former having shorter and the latter longer leaves.— Prod, xvi., p. 399. 



t Parlatore gives Pinus Russelliana as a synonym of P. Montezuma, The specimen of the 

 former at Bicton, doubtless the finest in England, is quite distinct from that Pine. 



