× Sorbaronia hybrida (Moench) Schneid.

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Credits

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

Recommended citation
'× Sorbaronia hybrida' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/x-sorbaronia/x-sorbaronia-hybrida/). Accessed 2022-05-27.

Synonyms

  • ? Pyrus hybrida Moench
  • ? P. heterophylla Pott
  • Azarolus heterophylla Boskh.
  • Sorbus spuria Pers.
  • Pyrus spuria (Pers.) Ser.
  • P. spuria pendula Loud.
  • Sorbus hybrida pendula Lodd. ex Loud.
  • Sorbus heterophylla sens . Dipp. (and Hedl.), ? not Reichenb.
  • × Sorbaronia heterophylla Boskh.) Schneid.
  • Sorbus fallax Schneid.
  • × S. fallax (Schneid.) Schneid.

Glossary

acuminate
Narrowing gradually to a point.
acute
Sharply pointed.
apex
(pl. apices) Tip. apical At the apex.
ellipsoid
An elliptic solid.
glabrous
Lacking hairs smooth. glabrescent Becoming hairless.
herbarium
A collection of preserved plant specimens; also the building in which such specimens are housed.
hybrid
Plant originating from the cross-fertilisation of genetically distinct individuals (e.g. two species or two subspecies).
inflorescence
Flower-bearing part of a plant; arrangement of flowers on the floral axis.
obtuse
Blunt.
imparipinnate
Odd-pinnate; (of a compound leaf) with a central rachis and an uneven number of leaflets due to the presence of a terminal leaflet. (Cf. paripinnate.)
pollen
Small grains that contain the male reproductive cells. Produced in the anther.
rachis
Central axis of an inflorescence cone or pinnate leaf.

References

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Credits

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

Recommended citation
'× Sorbaronia hybrida' from the website Trees and Shrubs Online (treesandshrubsonline.org/articles/x-sorbaronia/x-sorbaronia-hybrida/). Accessed 2022-05-27.

A laxly branched shrub or small tree; young branchlets hairy. Leaves up to 314 in. long and 2 in. wide, variable in shape, some undivided, others pinnately cut or lobed at the base after the fashion of Sorbus hybrida, the terminal part of the leaf obtuse at the apex, sometimes acute or acuminate, especially on strong shoots, the lateral leaflets or lobes obtuse, glabrous above, hairy beneath at flowering-time. Flowers white, about 38 in. wide, borne in May or early June in small corymbs, the inflorescence-branches and receptacles densely white hairy. Fruits dark purple, globular or broad-ellipsoid, about 38 in. wide.

A hybrid of Sorbus aucuparia, of which the Aronia parent is uncertain, in commerce by the early 19th century and formerly known as ‘Pyrus spuria pendula’. It has never been common, however, and is now rare – deservedly so, for it has scant ornamental value. It gives some autumn colour but it is inferior to the aronias in that respect, and in its fruits, which are not freely produced. This is not the sorbaronia described in the 7th edition as × S. hybrida (and in earlier editions as Pyrus spuria); for this see under × S. sorbifolia below.

note. The nomenclatural type of × S. hybrida is Pyrus hybrida Moench, described in 1785 from a plant that had been raised some six years earlier at Wilhelmshöhe (Lustschloss Weissenstein), near Cassel, Germany. The seed-parent was ‘the arbutus-leaved pear’ and the pollen-parent was considered by Moench to be Sorbus aucuparia. The seed-parent could have been either Aronia arbutifolia or A. melanocarpa, since the ‘Pyrus arbutifolia’ of Moench’s time covered both species. On the other hand he described the fruits as red when ripe, which is what one would expect from a cross between the red-fruited A. arbutifolia and the rowan. However, the cultivated plant as described above, which is × S. hybrida sensu Rehder and other authorities, had dark purple fruits – an unexpected though not impossible result from a cross between two red-fruited species. Dippel, who described the cultivated form under the name S. heterophylla Reichenb., suggested A. melanocarpa as the Aronia parent, but that is a very glabrous species and ought, on the face of it, to produce a sorbaronia a good deal less hairy than the cultivated × S. hybrida.

× S. sorbifolia (Poir.) Schneid. Mespilus sorbifolia Poir.; Pyrus sorbifolia (Poir.) Wats.; P. spuria sens. Loud., not (Pers.) Ser.; Sorbus × sargentii Dipp.; S. × sorbifolia (Poir.) Hedl.; Pyrus × mixta Fern. – Similar to the preceding but almost glabrous in all its parts, the leaves and leaflets or lobes more sharply pointed, and the inflorescence-branches more slender. A probable hybrid between Sorbus americana and Aronia melanocarpa, described in 1816 from a plant cultivated in France but distributed earlier in Britain by the nurseryman Lee of Hammersmith. Towards the end of the last century the same hybrid was raised in Germany from seeds of A. melanocarpa received from Prof. Sargent of the Arnold Arboretum and was named Sorbus × sargentii by Dippel; this form was later distributed by Späth’s nursery, Berlin. × S. sorbifolia gives quite good autumn colour but is very rare in gardens. Some of the leaves on strong shoots are very like those of Sorbus × thuringiaca in shape.

The sorbaronia described in the 7th edition of this work as × S. hybrida (and in earlier editions as Pyrus spuria) appears to be one received at Kew from Späth’s nursery, Berlin, towards the end of the last century as Pyrus hybrida. Judging from herbarium specimens it was very near to × S. sorbifolia but with the young leaves cobwebbed beneath and the rachis of the inflorescence downy, especially near the base. A similar sorbaronia had, however, been in commerce in Britain and Germany by 1880, as Pyrus spuria, which seems to have been a catch-all name for the semi-pinnate members of this genus.