Pinus nigra Arnold

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Credits

Article from Bean's Trees and Shrubs Hardy in the British Isles

Recommended citation
'Pinus nigra' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/pinus/pinus-nigra/). Accessed 2019-12-12.

Genus

Common Names

  • Austrian Pine

Synonyms

  • P. austriaca Hoess
  • P. nigricans Host
  • P. laricio var. austriaca (Hoess) Loud.
  • P. laricio var. nigricans (Host) Parl.

Glossary

apex
(pl. apices) Tip. apical At the apex.
glabrous
Lacking hairs smooth. glabrescent Becoming hairless.
ovoid
Egg-shaped solid.
subspecies
(subsp.) Taxonomic rank for a group of organisms showing the principal characters of a species but with significant definable morphological differentiation. A subspecies occurs in populations that can occupy a distinct geographical range or habitat.
terete
Like a slender tapering cylinder.
variety
(var.) Taxonomic rank (varietas) grouping variants of a species with relatively minor differentiation in a few characters but occurring as recognisable populations. Often loosely used for rare minor variants more usefully ranked as forms.

References

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Credits

Article from Bean's Trees and Shrubs Hardy in the British Isles

Recommended citation
'Pinus nigra' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/pinus/pinus-nigra/). Accessed 2019-12-12.

A tree sometimes over 100 ft high in the wild, with a broad crown and a dark, plated bark, young shoots brown when ripe, glabrous; buds brown, slightly resinous, broadly ovoid at the base, narrowed abruptly at the apex to a slender point. Leaves in pairs, 3 to 6 in. long, up to 112 in. wide, falling in their fourth year, semi-terete, very minutely toothed, dark green, rather rigid; sheath about 12 in. long. Cones solitary, in pairs or in threes, ripe in their second year and then glossy brown, ovoid-conic or elongate-ovoid, 2 to 3 in. long, scales transversely ridged and sometimes terminated by a short prickle; seeds small, winged.

P. nigra (in the narrow sense as described above) has its northern limit south-west of Vienna, but its main distribution is from Istria and the Julian Alps southward through Yugoslavia to Greece; it has also been reported from a few localities in central and southern Italy. In Dalmatia it reaches to near sea-level on the Pelješac peninsula and on the island of Brač. The nurseryman Lawson of Edinburgh started to import seed of P. nigra in 1835 and two years later was offering one-year seedlings at 10 shillings a thousand.

The Austrian pine is very distinct in general appearance from, and decidedly inferior to, the Corsican pine (see var. maritima below). It has a rougher, shorter trunk, with more numerous branches, and heavier masses of darker green leaves, which on the whole are shorter, stiffer, and straighter than those of the var. maritima. The whole tree has a coarser, heavier aspect. It is very useful for growing on poor chalky soil, and as a shelter tree in bleak situations, especially near the sea. Its value as a timber tree is much less than that of var. maritima.

It appears to be a short-lived tree in cultivation, though the fact that it is so often planted in exposed positions may be the explanation for this. Some noteworthy specimens are: Keir House, Perths., pl. 1851, 75 × 13 ft (1970); Petworth House, Sussex, 112 × 1112 ft (1961); Bicton, Devon, 88 × 1314 ft (1968); Bolderwood, New Forest, Hants, 115 × 1234 ft (1970).

P. nigra in the broad sense is a variable and wide-ranging species, and the typical variety or subspecies, discussed above, is only a segment of it. It is now necessary to turn to the other subdivisions of the species, which are here given in geographical order, from east to west:

From the Supplement (Vol. V)

specimens: Bolderwood, New Forest, Hants, 118 × 1214 ft and 108 × 1112 ft (1979); Oxford Botanic Garden, 80 × 1334 ft (1983); Brocklesby Park, Lincs., 105 × 1134 ft (1977); Althorp, Northants, 102 × 1214 ft (1983); Dawyck, Peebl., 138 × 1034 ft (1985); Keir House, Perths., 85 × 15 ft (1985).

var. caramanica - specimens: Dropmore, Bucks., pl. 1821, 98 × 1434 ft at 3 ft (1982); Cuffnells, Lyndhurst, Hants, 132 × 1234 ft (1980); Bramshott Hall, Hants, 105 × 1314 ft (1983); Bolderwood, New Forest, Hants, 132 × 13 ft (1979); Hollycombe, Liphook, Hants, 100 × 13 ft (1984); Beauport, Sussex, 121 × 1714 ft (1981); Kingston Lacy Nursery, Wimborne, Dorset, 111 × 1712 ft at 3 ft (1983); Mells Park, Som., 111 × 14 ft (1975); Bicton, Devon, 102 × 1214 ft (1977); Leighton Knolls, Shrewsbury, Shrops., 123 × 14 ft (1977); Tyninghame, E. Lothian, 132 × 14 ft (1984); Beaufort, Inv., 135 × 1414 ft (1985).

var. maritima - specimens: Dropmore, Bucks., pl. 1829, 121 × 1434 ft (1982); Warnham Court, Sussex, pl. 1834, 121 × 12 ft (1984); Scotney Castle, Kent, 132 × 934 ft (1984); Linton Park, Kent, 111 × 1234 ft (1984); Cuffnells, Lyndhurst, Hants, pl. 1856, 130 × 10 ft (1980); Eastnor Castle, Heref., 135 × 1214 ft and 138 × 1214 ft (1984); Coed Coch, Abergele, Gwyn., 130 × 13 ft (1984).

var. cebennensis - specimens: University Botanic Garden, Cambridge, 60 × 812 ft (1976); National Pinetum, Bedgebury, Kent, pl. 1932, 82 × 534 ft and 85 × 512 ft (1983); Nonsuch Park, Epsom, Surrey, 82 × 10 ft (1983); Buscot House, Oxon., 82 × 814 ft and 105 × 812 ft (1981); Singleton Abbey, Swansea, 85 × 912 ft (1982).

† cv. ‘Hornibrookiana’. – This was raised from a witch’s broom found on an Austrian pine in Seneca Park, Rochester, USA and was named in 1932. It makes a small shrub, broader than high. Portrayed in Bull. Alp. Gard. Soc., Vol. 49, p. 134


'Pygmaea'

A slow growing, dense small bush or miniature tree. A plant at Kew attained 8 ft in height in forty years. Described by Carrière in 1855 as P. laricio var. pygmaea. This is not the same as P. laricio var. pygmaea Rauch ex Gordon, discovered on ‘the highest region of Mount Amaro’ and described as completely prostrate with spherical cones ‘smaller than those of Pinus pumilio’. Gordon identified this plant with P. magellensis Schouw, which is a synonym of P. mugo.

var. caramanica (Loud.) Rehd.

Common Names
Crimean Pine

Synonyms
P. laricio var. caramanica Loud.
P. caramanica Delamarre
P. pallasiana D. Don
P. nigra subsp. pallasiana (D. Don) Holmboe
P. nigra var. pallasiana (D. Don) Aschers. & Graebn.
P. tatarica Hort.
P. taurica Hort.

This variety or subspecies is not very clearly distinguished from typical P. nigra, but the cones are usually larger – up to 4 in. long. It occurs in Asia Minor, the Caucasus (where it is rare), in the Crimea, in the Balkans, and in the S. Carpathians. It was introduced to Britain around 1790 by Lee and Kennedy, who distributed plants raised from seeds sent from the Crimea by Pallas, a botanist of German origin famous for his explorations of Siberia. A. B. Lambert (who knew Pallas and bought his private herbarium) had two of the original trees in his collection at Boyton, which were heavily branched, ‘the lower branches almost equalling the trunk itself in size’ (Lambert, Descr. Gen. Pinus, 2nd Ed. (1828), Vol. 1, p. 14). This character is shown by old trees in British collections, which may be of Crimean provenance, but it is not a character of the var. caramanica as a whole (Mitchell, p. 224).Some of the oldest specimens of the var. caramanica are: Dropmore, Bucks, pl. 1821, 90 × 14 ft at 3 ft (1970); Bury Hill, Surrey, pl. 1840, 102 × 14{3/4} ft (1971); Cuffnells, Hants, 124 × 12{1/4} ft (1970); Bicton, Devon, 105 × 12 ft (1968).

var. cebennensis (Godr.) Rehd.

Synonyms
P. laricio var. cebennensis Godr.
P. nigra subsp. salzmannii (Dun.) Franco
P. salzmannii Dun.
P. pyrenaica Lapeyr., in part
P. laricio var. pyrenaica (Lapeyr.) Loud., in part
P. monspeliensis Salzm. ex Dun.
P. laricio monspeliensis Hort.
P. laricio var. tenuifolia Parl

This, the westernmost race of P. nigra, is of little importance. It makes a small or medium-sized tree and is best distinguished by its orange shoots and its very slender leaves, only {1/16} in. wide, not pungent at the apex. There is a specimen measuring 72 × 8{1/4} ft (1969) in the University Botanic Garden, Cambridge. A tree in the forest plot at Bedgebury (National Pinetum), pl. 1932, measures 47 × 3{1/4} ft (1965).P. nigra has given rise to only one cultivar of any importance, namely:

var. maritima (Ait.) Melville

Common Names
Corsican Pine

Synonyms
P. sylvestris var. maritima Ait.
P. laricio Poir.
P. nigra subsp. laricio (Poir.) Maire
P. nigra var. calabrica (Loud.) Schneid.
P. laricio var. calabrica Loud.
P. laricio var. corsicana Loud.
P. nigra var. poiretiana (Ant.) Schneid.
P. laricio var. poiretiana Ant.

Crown slender, with short horizontal branches. Leaves more slender than in the Austrian pine and less rigid. At least in cultivated trees, there is also a difference in length, those of the Corsican being up to 6 or 7 in. long, while in the Austrian they do not much exceed 4 in. Cones 2 to 3 in. long, 1 to 1{1/4} in. wide, ovoid-conic, yellowish brown; scales transversely keeled.A native of Calabria in the southern part of the Italian peninsula, of Sicily, and of Corsica; probably also of Algeria, though the trees there are sometimes separated as a distinct variety. The date of introduction is usually given as 1759, though this is simply the date of publication of the seventh edition of Miller’s Dictionary, in which he mentions a cultivated pine which is thought to have been the Corsican. But it was not planted in any quantity until some years after the Napoleonic wars, when seed was distributed by the firm of Vilmorin. Even in France seed was scarce in the 1820s, and many thousands of seedlings of P. sylvestris growing in the Forest of Fontainebleau were worked over to Corsican by grafting in the years 1826-30 (Loudon, Arb. et Frut. Brit., Vol. IV, p. 2130 and p. 2204); some of these trees still exist.In Britain the Corsican pine now ranks as the fourth most important forest tree. Being a native of the Mediterranean region and needing more than average summer warmth, it is not suitable for the cooler and rainier parts of the country. But in south-eastern England it grows excellently on sandy soils, where it is displacing Scots pine. The annual rate of planting is about 4,000 acres. It is also useful for afforesting sand-dunes, being resistant to salt winds. It does not transplant well if allowed to remain more than two years in one spot, and should be put in when less than 1 ft high.Some of the most notable specimens of the Corsican pine are: Dropmore, Bucks, pl. 1829, 120 × 14 ft (1970); Warnham Court, Sussex, pl. 1834, 100 × 11 ft (1971); Albury Park, Surrey, 110 × 12{1/4} ft(1966); Cuffnells, Hants, pl. 1856, 130 × 10 ft (1970); Stanage Park, Glos., pl. 1828, 144 × 11 ft (1970); Arley Castle, Worcs., pl. 1820, 125 × 14{1/4} ft (1961); Mells Park, Som., 125 × 13{1/4} ft (1962); near Llanfachreth, Merion., 70 × 15{1/2} ft (1968).The following measurements indicate rate of growth in the south-east: National Pinetum, Bedgebury, pl. 1926, 61 × 6 ft (1969); Dropmore, Bucks, pl. 1929, 61 × 5 ft (1970).

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