CHAP, CX1II.

conj'ferj®. pi'nus.

2243

year; whence the specific name. Pursh, who sus-pects this species to be only a variety of P. rigida,says that it grows on the edges of ponds andswamps from New Jersey to Carolina. Michauxobserves that it is generally found in the maritimeparts of the southern districts ; but that “ it growsoccasionally in other parts of the United States , onthe borders of ponds, and in the black and mirysoil of the small swamps which form the habitatof the loblolly bay (Gordons lasianthus), the tu-pelo (Nyssa bicolor), and the small magnolia(Magnolia glauca). This species is sometimesfound, also, in abandoned fields near the swamps;but the dryness of the soil occasions no differencein its form. This observation, Michaux adds, isof importance, as P. serotina is frequently con-founded with P. rigida, which it strikingly resem-bles. The timber is found to consist of more thanone half of sap wood; and for this reason it isuseless at home, and deservedly neglected abroad.”

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

kinds of P.ifae'da, an in-teresting addition to the pinetum, grow-ing as freely at Syon, Pain’s Hill, andDropmore, as P. rigida or P. T ae'da.The tree at Dropmore (of which a por-trait is given in our last Volume) was, in1837, 32 ft. high, that at Syon was 25 ft.high, and one at Kenwood was 30 ft. high.

P. vartdbilis Lamb. Pin., ed. 2., 1. 1.14., and ohtJig. 2131., of the natural size, from Lambert’s plate.Mr. Lambert describes this pine as having the leavesin twos and threes, Sin. long, channeled, the marginsand nerves rough, and the apexes sub-keelshaped;the sheaths short, straight, and tut little wrinkled.The cones solitary, recurved, pendulous, narrow-ovate, muricate; spines subincurved, with the scalesdilated in the middle. He has only seen two trees ofthis species in England; one at Pain’s Hill, and theother at Kew. {Lamb.) The one at Kew no longerexists ; and the only trees at Pain’s Hill, that we couldsee, with cones resembling those in Mr. Lambert’splate, had three leaves, and appeared to us to belongto P. TVe'da. The buds in Mr. Lambert’s figure appearto be resinous,but those of P. vari&bilisat Dropmore,which we feel confident is the P. milis of Michaux(which Mr. Lambert makes a synonyme of his plant),are scaly, with the scales reflexed, as in fig. 2073. inp. 2195. The young shoots in Mr. Lambert’s plateare green, but in the Dropmore plant they are of thesame violet glaucous hue as those of P. loops; acharacter so remarkable that it cannot be mistaken,and which, Michaux says, belongs to no other pine ofthe United States but P. loops and P. mltis. (N.Atner. Syl. t 3. p. 130.) It is found also in P. Sabin -tana and P. Coulter/; but with these species Mi-chaux was not acquainted.

§ vi. Ponderosa.

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

1 19. P. pondero'sa Doug. The heavy -wooded Pine.

Identification. Douglas’* specimens in the Horticultural Society’s herbarium ; Lawsons Manual,P-354.; Lodd. Cat. , ed. 1836. , , .

E*gra»ingi. Our fig. 2135., to our usual scale; and figs. 2132. to 2134., of the natural size ; from thetree in the Horticultural Society’s Garden, and Douglas’s specimens in the Horticultural Society’sherbarium.

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