CHAP. CXIII. 



CONI'FER/E. PI'NUS 



2130 



year; whence the specific name. Pnrsh, who sus- 

 pects this species to be only a variety of P. rigida, 



says that it grows on the edges of ponds and 



swamps from New Jersey to Carolina. Michaux 



observes that it is generally found in the maritime 



parts of the southern districts ; but that " it grows 



occasionally in other parts of the United States, on 



the borders of ponds, and in the black and miry 



soil of the small swamps which form the habitat 



of the loblolly bay (Gordons lasianthus), the tu- 



pelo (Nyssrt bf color), and the small magnolia 



(Magnol/rt glaiica). This species is sometimes 



found, also, in abandoned fields near the swamps ; 



but the dryness of the soil occasions no difference 



in its form. This observation, Michaux adds, is 



of importance, as P. serotina is frequently con- 

 founded with P. rigida, which it strikingly resem- 

 bles. The timber is found to consist of more than 



one half of sap wood ; and for this reason it is 



useless at home, and deservedly neglected abroad." 



(Michx.) In England, it forms, like the other 



kinds of P. 

 TV da, an in- 

 teresting addition to the pinetum, grow- 

 ing as freely at Syon, Pain's Hill, and 

 Dropmore, as P. rigida or P. 7 T ae v da. 

 The tree at Dropmore (of which a por- 

 trait is given in our last Volume) was, in 

 1837, 32 ft. high, that at Syon was 25 ft. 

 high, and one at Kenwood was 30 ft. high. 



P. varidbiUs Lamb. Pin., ed. 2., 1. 1 14., and our 

 fig. 2131., of the natural size, from Lambert's plate. 

 Mr. Lambert describes this pine as having the leaves 

 in twos and threes, 2 in. long, channeled, the margins 

 and nerves rough, and the apexes sub-keelshaped ; 

 the sheaths short, straight, and Lut little wrinkled. 

 The cones solitary, recurved, pendulous, narrow- 

 ovate, muricate ; spines subincurved, with the scales 

 dilated in the middle. He has only seen two trees of 

 this species in England; one at Pain's Hill, and the 

 other at Kew. (Lamb.} The one at Kew no longer 

 exists ; and the only trees at Pain's Hill, that we could 

 see, with cones resembling those in Mr. Lambert's 

 plate, had three leaves, and appeared to us to belong 

 to P. TteMa. The buds in Mr. Lambert's figure appear 

 to be resinous, but those of P. variabilis at Dropmore, 

 which we feel confident is the P. mltis of Michaux 

 (which Mr. Lambert makes a synonyme of his plant), 

 are scaly, with the scales reflexed, as in fig. 2073. in 

 p. 2195. The young shoots in Mr. Lambert's plate 

 are green, but in the Dropmore plant they are of the 

 same violet glaucous hue as those of P. Inops ; a 

 character so remarkable that it cannot be mistaken, 

 and which, Michaux says, belongs to no other pine of 

 the United States but P. Inops and P. mltis. (N. 

 Amer. Syl., 3. p. 130.) It is found also in P. Sabin- 

 iima and /'. Coulter/; but with thess species Mi- 

 chaux was not acquainted. 



vi. Ponderbsa. 

 Sect. Char. Leaves very long, strong, somewhat flexuose. 



1 19. P. PONDERO'SA Doug. The he&vy-wooclt-d Pine. 



Identification. Douglas's specimens in the Horticultural Society's herbarium ; Lawson's Manual, 



p. 354. ; Lodd. Cat., ed. 1836. 

 SngrofiHft. Our fig. 2135., to our usual scale ; and figx. 2132. to 2134., of the natural size ; from the 



tree in the Horticultural Society's Garden, and Douglas's specimens in the Horticultural Society's 



herbarium. 



7 F 3 



