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JOURNAL OF THE EOYAL HORTICULTURAL SOCIETY. 



slope of the Rocky Mountains of Northern Montana (Old Maria's 

 Pass, Canby and Sargent) ; California, Scott's Mountains, Mount 

 Shasta, and on the high peaks of the Sierra Nevada to Mount San 

 Bernardino. 



A small alpine tree, 20-40 feet in height, with a trunk rarely 

 2 feet in diameter, or at its highest elevation reduced to a low, 

 prostrate shrub ; dry, gravelly ridges at the extreme limit of tree- 

 growth, reaching in the San Bernardino Mountains an elevation of 

 10,500 feet (C. S. Sargent, "Forest Trees of North America"). 



The plant we have in Denmark bearing this name may not be right. 



P, apulcensis, Lindl. Bot. Reg. 1839, app. 63 ; Spach, Hist. 

 Vdg. Phan. xi. 403 ; Loud. Encycl. of Trees, 1014, f. 1899, 1900 ; 

 Endl. Syn. Conif. 153 ; Knight, Syn. Conif. 33 ; Lindl. and Gord. 

 Journ. Hort. Soc. v. 215 ; Carr. Man. des PI. iv. 349, and Tr. Gen. 

 Conif. 316 ; Gord. Pinet. 216 ; J. E. Nelson, Pinac. 102. P. acapulc- 

 ensis, G. Don in Sweet, Hort. Brit, ed. 3, 769. P. Zacatlcmse, Roezl, 

 Cat. 1857-58, 26. P. Fseudostrohus, Roezl (not Lindley). 



Habitat. — Mexico. Hartweg discovered it among the mountains 

 of Acapulco. Introduced to Chiswick in 1839-40. As far as my 

 knowledge goes we have no plant of this species in Denmark, but I 

 possess cones brought home by the Danish botanist Liebmann and 

 gardener Rathsack. 



P. australis, Michaux, Arbr. For. i. 62, t. 6, and Sylv. N. Amer. 

 30, t. 141 ; Loud. Arbor, iv. 2255, f . 2156-2160, and Encycl. of 

 Trees, 987, f. 1842-1845 ; Loisel. Nouv. Duham. v. 246, t. 75, f. 3 ; 

 Spach, Hist. Veg. Phan. xi. 392 ; Endl. Syn. Conif. 165 ; Lindl. and 

 Gord. Journ. Hort. Soc. v. 217 ; Knight,, Syn. Conif. 30 ; Carr. Man. 

 des PI. iv. 353, and Tr. Gen. Conif. 345 ; Gord. Pinet. 187. P. 

 americana palustris, Hort. Angl. 88 ; Duham. Arbr. ii. 126. P. 

 palustris, Mill. Diet. n. 14 ; Soland. in Ait. Hort. Kew. ed. 3, 368 ; 

 Du Roi, Harbk. ed. Pott. ii. 66 ; Wangenh. Beitr. 78 ; Willd. Baumz. 

 270 ; Lamb. Pinet. ed. 2, i. 30, t. 21 ; Forb. Pinet. Wob. 59, t. 22 ; 

 Ant. Conif. 23, t. 6, f. 2 ; Desf. Hist. Arbr. ii. 612 ; Link in Linnsea, 

 XV. 506. P. georgica, hort. ex Gord. I. c. P. palmiensis, ex Gord. 

 Pinet. Suppl. 63. P. Falmierii, Manetti, ex Gord. Suppl. I. c. 



Habitat. — South-eastern Virginia, south to Cape Canaveral and 

 Tampa Bay, Florida, and through the Gulf States to the valley of the 

 Red River, Louisiana, and the Trinity River, Texas, rarely extending 

 beyond 150 miles from the coast. 



A tree of the first economic value, 60-100 feet in height, with 

 a trunk 2-4 feet in diameter. Dry, sandy loam of the maritime 

 plain, generally of Tertiary formation, and forming, outside of the 

 river bottoms, extensive forests almost to the exclusion of other 

 species ; or towards its extreme interior range, especially in the Gulf 

 States, occupying rolling hills, and mingling with the Oak and various 

 deciduous trees ; rarely along the borders of swamps in low, wet soil. 



