year; whence the specific name. Pursh, who suspects this species to be only a variety of P. rígida, 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 (Gordònia lasiánthus), the tupelo (Nýssa bicolor), and the small magnolia (Magnolia glaúca). 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. serótina is frequently confounded with P. rígida, which it strikingly resembles. 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 2131 kinds of P. teresting addition to the pinetum, growing as freely at Syon, Pain's Hill, and Dropmore, as P. rígida or P. Tæ`da. The tree at Dropmore (of which a portrait 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. variabilis Lamb. Pin., ed. 2., 1. t. 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 but little wrinkled. The cones solitary, recurved, pendulous, narrowovate, 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. Ta da. The buds in Mr. Lambert's figure appear to be resinous, but those of P. variábilis at Dropmore, which we feel confident is the P. mitis 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. mitis. (N. Amer. Syl., 3. p. 130.) It is found also in P. Sabiniana and P. Coúlteri; but with these species Michaux was not acquainted. vi. Ponderosa. Sect. Char. Leaves very long, strong, somewhat flexuose. 19. P. PONDERO'SA Doug. The heavy-wooded Pine. Identification. Douglas's specimens in the Horticultural Society's herbarium; Lawson's Manual, p. 354.; Lodd. Cat., ed. 1836. Engravings. Our fig. 2135., to our usual scale; and figs. 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 F3 Spec. Char., &c. Leaves three in a sheath, much longer than the cones, flexible, tortuous, with short sheaths; crest of the anthers rounded, entire. Cones ovate, reflexed, with the apices of the scales flattened, with a raised process in the middle, terminating in a conical, minute, recurved spine, slightly quadrangular. Buds, in Douglas's specimen, in. long and in. broad; cylindrical, with straight sides, rounded like a dome at the extremity, but with a prominent blunt point; dark brown, and covered with resin. Buds, on the living tree in the Horticultural Society's Garden (see fig. 2132.), from 1 in. to 14 in. long, and from in. to 1 in. broad; smooth, cylindrical, with a long point; reddish brown, and covered with a fine white bloom, consisting of fine particles of resin, surrounded by two or more smaller buds. Leaves disposed in parallel spirals; in Douglas's specimen (see fig. 2133.), from 9 in. to 11 in. long; 3 in a sheath, which is from in. to 1 in. in length, with numerous fine rings; scales of the leaves persistent on the wood, even of two years' or three years' growth. Leaves, on the living plant, from 7 in. to 9 in. long. The cone (see fig. 2134.), in Douglas's specimen, is deformed, and the scale, which terminates in a sharp prickle, pointing outwards. Scale 1 in. long, and in. broad; dark brown. Seed in. long, and in. broad; dark brown, with the wing nearly 1 in. in length, and in. in breadth; wings of a yellowish brown. The following description, given in Lawson's Manual, of a young tree of P. ponderosa, taken from the specimen growing in the Caledonian Horticultural Society's Garden, which, in 1837, was 15 ft. high, is at once correct and characteristic:-" In its habit of growth, P. ponderòsa seems to surpass all others of the genus for strength and luxuriance. The branches are few, regularly verticillated, horizontal, and seem inclined to assume a pendulous or drooping habit as the tree becomes old; central or top shoot often more than an inch in diameter, and of proportionable length. Buds large, and free from resin. Leaves thickly set, 9 in. to 1 ft. or 1 ft. 2 in. in length; thick, rigid, and nearly straight; rounded on the exterior, and having a longitudinal prominent rib, together with minute channels, on the in The 2135 terior side; smooth, with very indistinctly serrated margins; sheaths short of a dull blackish colour, and lacerated or torn at their extremities." Lawson's Manual, p. 355.) timber is said to be so heavy as almost to sink in water. The tree is found to be quite hardy, and of rapid growth, both in the climate of London and of Edinburgh. P. ponderosa is a native of the north-west coast of North America, on the banks of the Spokan and Flathead rivers, and on the Kettle Falls of the Columbia, abundantly. It was discovered by Douglas, and sent by him to the Horticultural Society in 1826. A number of plants were raised from seeds in that year, and distributed: the largest of these we believe to be that in the Horticultural Society's Garden, of which fig. 2136. is a portrait, to the scale of 1 in. to 4 ft. The tree at Dropmore was, in 1837, 9 ft. high. Both this tree, and that in the Horticultural Society's Garden, are very subject to the attacks of the Hylúrgus pinipérda, already described, p. 2141.; and the specimen difference consists in the latter being loaded with female, the former with male, flowers, which certainly gives a very different appearance to the It is remarkable too, that all Mr. extremities of the numerous branches. Drummond's specimens (and they were all found upon P. Banksiana) are male plants. These and the plants of Mr. Douglas have been carefully compared with European ones found growing on the Juníperus Oxýcedrus, some from the south of France (in Languedoc, gathered by M. Bory de Saint Vincent), and others from Mt. Caucasus, communicated to me by Mr. Prescott,and I must confess, I cannot perceive any specific difference in them whatever. In general, but not always, those from the old world are either greener or blacker when dry; and the American more yellow."(Hook. Fl. Bor. Amer., i. p. 278.) Pinus ponderosa, which is, perhaps, more hardy than the pinaster, and is of equally rapid growth, has a noble appearance, even when a young tree; and, together with P. Sabiniana and P. Coúlteri, equally noble trees, and apparently as hardy and of as rapid growth, well deserves a place in every pinetum. Price of the plants, in the London nurseries, 21s. each. B. Cones having the Scales hooked. f vii. Sabiniànæ. Sect. Char. Cones large, with the apex of the scales elongated and hooked. 20. P. SABINIA NA Douglas. Sabine's, or the great prickly-coned, Pine. Identification. Lamb. Pin., ed. 2., 2. t. 80.; Lawson's Manual, p. 353.; Lodd. Cat., ed. 1836. Engravings. Lamb. Pin., ed. 2., 2. t. 80.; our fig. 2142., to our usual scale; and figs. 2138. to 2140., of the natural size, from the tree in the Horticultural Society's Garden, and Lambert. Spee. Char., &c. Leaves in threes, very long. Cones ovate, echinate, very large. Scales long, awl-shaped, incurved, and spiny at the apex. (Lamb. Pin.) Buds, |