Pyrus communis L.

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Credits

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

Article from New Trees, Ross Bayton & John Grimshaw

Recommended citation
'Pyrus communis' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/pyrus/pyrus-communis/). Accessed 2019-12-08.

Genus

Common Names

  • Common Pear

Synonyms

  • incl. P. communis var. pyraster L.
  • P. pyraster (L.) Burgsd.

Glossary

acuminate
Narrowing gradually to a point.
apex
(pl. apices) Tip. apical At the apex.
ciliate
Fringed with long hairs.
cordate
Heart-shaped (i.e. with two equal lobes at the base).
crenate
With rounded teeth at the edge.
entire
With an unbroken margin.
glabrous
Lacking hairs smooth. glabrescent Becoming hairless.
hybrid
Plant originating from the cross-fertilisation of genetically distinct individuals (e.g. two species or two subspecies).
key
(of fruit) Vernacular English term for winged samaras (as in e.g. Acer Fraxinus Ulmus)
ovate
Egg-shaped; broadest towards the stem.
peduncle
Stalk of inflorescence.
pyriform
Pear-shaped.
serrate
With saw-like teeth at edge. serrulate Minutely serrate.
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.

References

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Credits

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

Article from New Trees, Ross Bayton & John Grimshaw

Recommended citation
'Pyrus communis' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/pyrus/pyrus-communis/). Accessed 2019-12-08.

A deciduous tree, usually 30 to 40, occasionally as much as 60 ft high, with a trunk 3 ft through; branches forming short stiff spurs, sometimes spiny. Leaves variable, from ovate, heart-shaped and oval, to almost round; from 1 in. to 4 in. long, up to 2 in. wide, very finely round-toothed or entire; stalk slender, 1 to 2 in. long; the leaves are variable in their downiness, but are either glabrous from the beginning or become nearly or quite so later, and glossy green. Flowers white, 1 to 112 in. across, produced in corymbs 2 to 3 in. across, each flower on a more or less woolly stalk 12 to 112 in. long. Fruits top-shaped or rounded, with a tapering or rounded base.

P. communis, in the broad sense, is a complex species and partly of hybrid origin. It comprises the wild pear, which by selection and by crossing with Other species (probably P. nivalis and P. cordata) gave rise to the orchard pears (P. communis var. culta DC.). These in turn have frequently escaped back into the wild and become so intermingled and interbred with the ancestral wild pear that it is no longer possible to distinguish it from its naturalised offspring. All that can be said is that wild or seemingly wild pears as described above occur over much of Europe, including the British Isles.

In gardens the wild pear has not much claim to notice. Its graceful, often pendulous branches and large crops of flowers are beautiful, but the garden varieties are just as much so, and give useful fruits as well. The common pear (both wild and cultivated) is long-lived and yields an excellent timber, heavy, tough, and durable, which, however, is not plentiful enough to be of much importance in commerce.

From the Supplement (Vol. V)

cv. ‘Beech Hill’. – The original tree was noticed by the late Rowland Jackman growing in a hedgerow not far from his nursery.

From New Trees

Pyrus communis L.

Common Pear

This species was described by Bean (B448) and Krüssmann (K74). Identifying subspecies of the Common Pear is difficult. They are delimited partly by geography, so cultivated accessions with no collection data often cannot be named. In addition, the Domestic Pear (P. communis subsp. sativa (Lam. & DC.) Asch. & Gr.) occurs within the natural range of several other subspecies and forms hybrids with them. Pyrus cordata has also to be fitted into the equation, and it seems likely that some of the smaller-fruited taxa may be related to this. A key to the subspecies of Pyrus communis, modified from those of Browicz (1972) and Maire (1980), is given below.

1a.

Branchlets unarmed; leaves large, to 7 × 5 cm; fruits large, > 5 cm long, solitary, with soft flesh; in cultivation in temperate areas around the world (the Domestic Pear)

subsp. sativa

1b.

Branchlets spiny; leaves small, to 3 × 3 cm; fruits small, up to 4 cm long, in groups of two to six, with hard flesh

2

2a.

Distribution in Europe, western and central Asia

3

2b.

Distribution in North Africa

4

3a.

Leaves crenate-serrate or subentire, not ciliate; Europe

subsp. communis

3b.

Leaves entire, ciliate; Greece (Thrace), Turkey (north and southwest Anatolia), Russian Federation (Caucasus), Ukraine (Crimea)

subsp. caucasica

4a.

Leaves largely ovate-cordate; fruit subglobose to pyriform, 2–2.5 cm long, peduncle robust; seeds large, 0.8 × 0.7 cm

subsp. mamorensis

4b.

Leaves not cordate; fruit subglobose to obovate, 1–1.3 cm long, peduncle slender; seeds small, ~0.4 cm long

5

5a.

Leaves subcircular or largely ovate, apex short-acuminate; fruit subglobose, four to five locules

subsp. longipes

5b.

Leaves ovate-oblong or oblong, apex long-acuminate; fruit ± obovate, two to three (to four) locules

subsp. gharbiana

 


'Beech Hill'

A tree of spire-like habit.

P cordata Desv.

Synonyms
P. communis var. cordata (Desv.) Briggs
P. communis var. briggsii Syme

Although sometimes regarded as a variety of P. communis, this is really a very distinct species. It is smaller in all its parts than P. communis. The leaves, sometimes heart-shaped, but often rounded or broadly wedge-shaped at the base, are usually less than 1{1/2} in. long, finely and evenly round-toothed. Flowers smaller, in distinct racemes. Fruits globular, {3/8} to {1/2} in. in diameter, brown spotted with white, smooth. These small rounded fruits afford the best distinction between this pear and P. communis. Long known as a native of France, Spain, and Portugal, it was, in 1865, also discovered wild in the south-west of England by T. R. Archer-Briggs.

P cossonii Rehd.

Synonyms
P. longipes Coss. & Durieu, not Poit. & Turp.
P. communis var. longipes (Coss. & Durieu) Henry

Also of the P. communis group and very nearly allied to P. cordata, this pear is a native of Algeria, especially in the mountain gorges above Batna. It is a small tree or shrub, with glabrous branchlets. Leaves roundish oval or broadly ovate, 1 to 2 in. long, {1/4} to 1{1/2} in. wide, the base sometimes slightly heart-shaped, more especially tapering, very finely and evenly round-toothed, quite glabrous on both sides, lustrous above; stalk slender, 1 to 2 in. long. Flowers white, 1 to 1{1/4} in. across, produced in corymbs 2 to 3 in. in diameter. Fruit about the size and shape of a small cherry, produced on a slender stalk 1 to 1{1/2} in. long, turning from green to brown as it ripens, the calyx-lobes falling away. Introduced to Kew from France in 1875.The following specimens have been recorded: Edinburgh Botanic Garden, pl. 1903, 46 × 4{1/4} ft (1967); Borde Hill, Sussex, 55 × 4 ft (1968).

P syriaca Boiss

This species is related to the wild pear of Europe, from which it differs in its relatively narrower leaves, which are ovate or ovate-lanceolate, up to 2 in. long and 1 in. or slightly more wide. The fruits are smaller, about {3/4} in. wide. It occurs wild from Turkey and Cyprus to the Caucasus, Iraq, and Persia.

subsp. caucasica (Fed.) Browicz

Common Names
Caucasian Pear

This is the easternmost version of Pyrus communis, and does not differ greatly from western European representatives except in its ciliate leaf margins. Like them it is a fine, densely clad, long-lived tree. It is not common in general cultivation but is grown by research institutions such as the National Clonal Germplasm Repository, Corvallis, Oregon, where there are numerous accessions of known wild origin (National Germplasm Repository 2008). There is a magnificent specimen of unknown origin at the Hillier Gardens, measured at 14.1 m (58 cm at 1 m) in 2008, with several principal vertical stems from a low trunk, forming a broad dark green crown. This was liberally furnished with bright green, very unripe pears when seen in June 2007. Mature trees are occasional in arboreta across our area, but young plants are also grown in some American collections: at the Morton Arboretum, for example, from seed obtained from the Midwest Plant Collecting Collaborative 2000 Republic of Georgia Contract Collection, gathered in the Imereti Region, Georgia. Like many other good plants from the Caucasus, it should be ideally suited to US Midwestern and continental European conditions.

subsp. gharbiana (Trabut) Maire

Subsp. gharbiana, which appears to be a small-fruited representative of the Pyrus communis alliance from North Africa, is included here mainly for completeness, as it seems to be principally grown by institutions with a particular interest in wild fruit genotypes. The only specimen located in the United Kingdom is at Kew, received in 1986 from the now-defunct Long Ashton Research Station. Several accessions of material of wild origin are maintained at the National Clonal Germplasm Repository, Corvallis (National Germplasm Repository 2008), and it may also be grown in specialist collections of fruit trees.

subsp. longipes (Cosson & Durand) Maire

Common Names
Algerian Pear

Synonyms
P. cossonii Rehder

This taxon is relatively well known in cultivation as Pyrus cossonii, and occasionally as P. longipes. TROBI has recorded numerous specimens in gardens throughout the United Kingdom, the champion being a 20 m tree measured at Collingwood Grange, Benenden, Kent in 1995.

subsp. mamorensis Mamor Mountain Pear

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