■ (SPEC) Iris purpureobractea Mathew & Baytop

1982, Botanical author Mathew & Baytop

Iris purpureobractea Mathew & Baytop. (Brian Mathew and Asuman Baytop, 1982, Turkey); Section Iris . Height 12-20" (30-50 cm); Variable blue or yellow; beard white. 'Yellow flowered form'.-Pale yellow suffused with pale purple on lamina, hafts brown , beard white tipped yellow. 'Blue flowered form'.-Pale pearly blue suffused with darker blue in the center of the falls, hafts veined dull violet, beard white tipped yellow.

See below:
Iris-purpureobractea-JMyers4.jpgIris-purpureobracteaBaumunk.jpgIris-purpureobracteaJClark-2.jpgIris-purpureobracteaJClark.jpgIris-purpureobracteaMathes-3.jpgpurpureobractea yellow form photo1 L Ransom.jpgpurpureobractea yellow form photo2 L Ransom.jpgpurpureobracteaLB.jpgpurpureobracteata - yellow form -Baumunk.jpg
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References:

 
In The Garden 107, 11: 445-448. 1982, Mathew and Baytop provide the following description, only slightly edited along with a color photograph.
"Plant 20-45 cm in height. Leaves 1.5-2.5(-3.5) cm wide,- ± straight or slightly falcate, grey-green, dying away during the winter. Stem with 2-4 branches, the lowest ones about 2-6 cm long, the upper more or less sessile. Spathes, bracts and bracteoles inflated-navicular, obtuse or rounded, almost entirely suffused purple at flowering time, 2-4.5 cm long. Flowers pale blue with the falls suffused darker blue on thelamina and veined deep blue on the claw, or pale yellow with greenish-brown veining; falls obovate, cuneate at the base, 5.2-6(-6.5) cm long, 2.8-3.5 cm wide accross the widest part of the lamina, furnished in the lower half with a median yellow beard; standards obovate with a narrow claw, 5-6(6.5) cm long, 2.5-3.3(-4) cm wide at the widest point; style branches 3-4 cm long, 1.2=1.6 cm wide, with obliquely subacute lobes c. 1 cm long. Capsule oblong, c. 5 cm long, 1.5 cm wide."

"Flowering period: April-May.
Habitatat: open rocky places, on cliffs or in scrub, sometimes in sparse Cedrus or Pinus forest, 60-1,600 metres.
Distribution: north-west, west and south-west Turkey, recorded in the provinces of Sakarya, Usak, Denizli and Mugla."

"_I. purpureobractea_ is so named because of the very conspicuous inflated purple spathes and bracts which subtend the flowers. It is a bearded Iris, that is it belongs to section Iris (formerly known as Section Pogoniris (Spach) Baker) and although iy is one of the taller species with a branched inflorescence it does not compare in stature and in flower size to I. germanica L. and its relatives. The most closely related species appears to be I. junonia Schott & Kotschy ex Schott (1854), a plant which occurs in the eastern Taurus mountains in Adana and Içelprovinces of Turkey. The two can be distinguished as follows:
Bracts and bracteoles inflated-navicular, obtuse or rounded, almost entirely suffused in purple at peak of flowering, 2-4.5 cm long, falls usually 5.2-6 cm long; standards usually 5-6 cm long..._I. purpureobractea_.
Bracts and bracteoles only slightly inflated, obtuse, almost entirely pale green, scarious at anthesis, c. 4 cm long; 6-7 cm long; standards 5.8-7 cm long.... I. junonia_
Iris purpureobracteata has a more westerly distribution than _I. junonia
and is often to be found on volcanic rock formations, although this is not invariably so, whereas I. junonia is as far as I can ascertain confined to calcareous formations. Like I. junonia it looses its leaves completely in the winter monthes, unlike most of the taller bearded species of the I. germanica alliance, and when they do develop in spring they remain somewhat short, usually only 10-20 cm long when first developed.
As a garden plant I. purpureobractea is most attractive. The scented flowers are about 6-7.5 cm in diameter and may be a pearly-blue colour or pale yellow, both forms being conspicuously veined darker.

The collection made by Professor Asuman Baytop of the Faculty of Pharmacy, Istanbul University on Honaz Dag, which has been designated as the type, is particularly pleasing in its flower colour. The icy-blue ground colour contrasts well with the dark purple bracts and the falls are strikingly dark-veined. The yellow form is somewhat less attractive being a rather dull colour with greenish-brown veining. Some populations in the wild (eg. Those from Mugla Dag and the Geyve gorge) consists of yellow-flowered forms only and are fairly uniform in their coloration while others (on Honaz Dag) consist of a mixture of blue and yellow forms."
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Synonyms

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Chromosome counts

2n=24,48,49,72, Koca 1989 ----

Variations

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Hybrids

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Distribution and Cultivation

Distribution: Region:
Cultivation:

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Iris-purpureobractea-JMyers4.jpgIris-purpureobracteaBaumunk.jpgIris-purpureobracteaJClark-2.jpgIris-purpureobracteaJClark.jpgIris-purpureobracteaMathes-3.jpgpurpureobractea yellow form photo1 L Ransom.jpgpurpureobractea yellow form photo2 L Ransom.jpgpurpureobracteaLB.jpgpurpureobracteata - yellow form -Baumunk.jpg


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-- Main.RPries - 2010-02-08
Topic attachments
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Iris-purpureobractea-JMyers4.jpgjpg Iris-purpureobractea-JMyers4.jpg manage 26 K 31 Aug 2016 - 17:21 BobPries J. Myers photo
Iris-purpureobracteaBaumunk.jpgjpg Iris-purpureobracteaBaumunk.jpg manage 169 K 31 Aug 2016 - 17:19 BobPries Lowell Baumunk photo
Iris-purpureobracteaJClark-2.jpgjpg Iris-purpureobracteaJClark-2.jpg manage 30 K 31 Aug 2016 - 17:20 BobPries L. Clark photo
Iris-purpureobracteaJClark.jpgjpg Iris-purpureobracteaJClark.jpg manage 29 K 31 Aug 2016 - 17:20 BobPries L. Clark photo
Iris-purpureobracteaMathes-3.jpgjpg Iris-purpureobracteaMathes-3.jpg manage 31 K 31 Aug 2016 - 17:21 BobPries J. Myers photo
purpureobracteaLB.jpgjpg purpureobracteaLB.jpg manage 71 K 20 May 2013 - 19:47 Main.Betsy881 Photo by Lowell Baumunk
purpureobractea_yellow_form_photo1_L_Ransom.jpgjpg purpureobractea_yellow_form_photo1_L_Ransom.jpg manage 61 K 21 Apr 2010 - 14:58 Main.zeblouz  
purpureobractea_yellow_form_photo2_L_Ransom.jpgjpg purpureobractea_yellow_form_photo2_L_Ransom.jpg manage 59 K 21 Apr 2010 - 14:59 Main.zeblouz  
purpureobracteata_-_yellow_form_-Baumunk.jpgjpg purpureobracteata_-_yellow_form_-Baumunk.jpg manage 43 K 09 Feb 2010 - 18:48 Main.Betsy881 Photo by Baumunk
Topic revision: r12 - 31 Aug 2016, BobPries
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