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1
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2
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- x Sorbopyrus auricularis
- Pyrus communis x Sorbus aria
(Shipova, etc.)
- x Pyronia veitchii
- Pyrus communis x Cydonia oblonga
- Assorted hybrids between:
Sorbus, Amelanchier, Aronia, Cotoneaster, Cydonia, Mespilus,
Malus and Pyrus
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3
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4
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5
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- First described by Lindley in 1437
- Decaisne: “The pear of Pollwiller is a remarkable example of the
persistence of the characters of a hybrid tree, propagated for three
centuries by grafting, and which contradicts everything said on the
subject of the disappearance and the degeneration of our ancient
varieties of fruit trees.”
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6
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7
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8
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9
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10
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11
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12
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13
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14
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- Sorbopyrus auricularis v. bulbiformis
at Arnold Arboretum came
from Kew Gardens in England
- This large fruit clone is triploid
- Natural back-cross of diploid Sorbopyrus to haploid Pyrus –
resulting in 2 sets of Pyrus chromosomes and 1 set of Sorbus
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15
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16
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17
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- x Pyronia Veitchii (Trabut) Guillaumin
Cydonia oblonga x Pyrus communis
- Origin before 1913
- (= Cydonia veitchii 'John Seden' Trabut
Pyrocydonia 'John Seden' Guill.)
- + Pyronia Danieli (Winkl.) Rehd.
Graft hybrid C. oblonga + P. communis
Originated in 1902
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18
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- “A hybrid between the
Pear and Quince”
- “Produces abundance of
seedless fruit of some value”
- “Many new combinations might be made between the relatives of the
pear”
- L. Trabut of Algiers, Algeria
- Journal of Heredity, 1917
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19
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- Hybridized by Mr. Veitch of London
- Trabut received scions from Veitch in 1913
- First fruits in 1914
- Abundant fruits in 1915
- All fruits seedless
- More like quince than pear
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20
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- Received from I. Shimura
Tokyo University of
Agriculture
- Pyrus pyrifolia x Cydonia oblonga
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21
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- Many are Graft Compatible
- Some may be rarely pollen Compatible?
- (all have 17 chromosomes)
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22
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- George Neville Jones, in his 1939 monograph on North American Sorbus in
the Journal of the Arnold Arboretum lists:
- 4 intergeneric hybrids between North American Mountain Ashes (Sorbus)
and chokeberries (Aronia)
- 1 intergeneric hybrid
between Mountain Ash
(Sorbus) and Serviceberry
(Amelanchier)
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23
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- Mountain Ash – Chokeberry hybrids (Sorbus x Aronia):
- Sorbus aucuparia
- S. aucuparia x Aronia arbutifolia = x Sorbaronia hybrida
- S. aucuparia x Aronia melanocarpa = x Sorbaronia fallax (herbarium
samples from Massachusetts and Maine
- Sorbus americana
- S. americana x Aronia melanocarpa = x Sorbaronia sorbifolia
known in cultivation – not from the wild - cultivar
‘Stewart’
- S. americana x Aronia prunifolia - described by A. Rehder in 1939
- Sorbus aria
- S. aria x Aronia melanocarpa = x Sorbaronia dippelii
- Sorbus decora
- S. decora x Aronia prunifolia = x Sorbaronia Arsenii (described
originally by Bro. Louis Arsène)
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24
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- Sorbus x Amelanchier:
- Amelanchier florida x Sorbus scopulina = x Amelosorbus Jackii
(herbarium samples from Oregon and Idaho)
- Sorbus x Crataegus:
- Sorbus aucuparia x Crataegus
sanguinea =
X Sorbocrataegus ‘Granatnaya’
- Sorbus x cotoneaster:
- x Sorbocotoneaster (received
from Uzbekistan)
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25
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26
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27
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- Occurs in the Wallowa and Clearwater Mountains in NE Oregon and NW
Idaho.
- Amelanchier alnifolia x Sorbus scopulina
- Alfred Rehder described this species in 1925 from plants growing at
Arnold Arboretum collected in Idaho.
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28
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29
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- Samples in OSU herbarium were collected in the 1880s and in early 1900s
under the name Pyrus sambucifolia
- It may still occur in the
Wallowa Mountains
2 miles NE of
Cornucopia, Oregon?
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30
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31
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- + Crataegomespilus dardarii
- Crataegus monogyna + Mespilus germanica
- Sexual Hybrid
- x Crataegomespilus grandifolia
- Crataegus monogyna x Mespilus germanica
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32
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33
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34
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35
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36
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37
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Notes
