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---++ ■ (SPEC) _Iris tectorum_ Maxim.

1871, Botanist Maximowicz

<img src="%PUBURL%//Spec/SpecTectorum/tectorum06.jpg" style="margin: 10px; float: right; height: 300px;" /> 

__Iris tectorum__ *Maxim.* ([[Main.Bio.HybridizerMaximowiczCJ][Karl Johann Maximowicz]], 1871, Central and southwest China); [[Main.InfoClassificationSubgenusLimniris][Subgenus Limniris]]; "Evansia"; 10-15" (25-35 cm), Blue; 

See below:
   * * [[#References][References]]
   * * [[#Synonyms][Synonyms]]
   * * [[#Chromosome][Chromosome counts]]
   * * [[#Variations][Variations]]
   * * [[#Hybrids][Hybrids]]
   * * [[#Distribution_and_Cultivation][Distribution and Cultivation]]

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---+++ References
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| Bull. Acad. Pet. 15: 380. 1871; Flor. Serres 22: 23. 1874, illustrated in color; (Introduced Eng. 1874);|
| Gartenflora [E. von Regel], vol. 21: t. 716 (1872)<img src="%PUBURL%//Spec/SpecTectorum/324894.jpg" style="margin: 10px; float: right; height: 400px;" />| 
| [[Main.Bio.ScientistHookerJD][Hooker]] provides the following notes in [[http://www.biodiversitylibrary.org/item/14228#page/173/mode/1up][ _Curtis's Botanical Magazine_ table 6118; September, 1874;]]<img src="%PUBURL%//Spec/SpecTectorum/Tectorum_Bot_Mag_6118.jpg" style="margin: 10px; float: right; height: 400px;" /> <br />"Although the plant here figured came from Whampoa in China, where it was cultivated by Dr. Hance, Her Brittannic Majesty's Vice-Consul at that port, there can be no question but that it is the Japanese Iris tectorum of Maximovicz, which grows in fields about Yokohama in Japan, and is likewise cultivated by the Japanese. It differs from Maximovicz's description, but not from native specimens, in having three spathes, which are acute or acuminate-characters which (with some others of foliage that are very variable) induced Dr. Hance to publish it as a new species, under the name of tomiolopha, in allusion to its cut crest. On the other hand it differs from Dr. Hance's description in the spreading inner perianth-segments, a character probably due to cultivation, as it occurs in the splendid Iris Kaempferi var. Hendersoni, lately exhibited in the Royal Horticultural Society by Messrs. Henderson, and which is unquestionably a form of I. laevigata, with a spreading perianth. With the North American I. cristata, to which it was referred by the late Professor Miquel, it has no near affinity, but it has with the Himalayan I. decora, wall, of Nepal.</br></br>I am indebted to Mr. Bull for the specimen here figured, which was raised from seeds by Dr. Hance from his garden in Whampoa, and which flowered in April, 1874</br></br>*Descr.* Rootstock creeping, tuberous, annulate. Leaves about a foot long, by three-quarters to one and a quarter inches broad, ensiform, scarcely glaucous. Scape nearly terete, about as long as the leaves. Flowers three to four inches in diameter. Spathes three, herbaceous, green, erect, longer than the perianth-tube, acute. Pedicel about as long as the ovary, Perianth-tube one inch long; outer segments one and a half inches broad, obovate, margin crisped and waved, pale lilac streaked with violet; claw half as long as the limb, white; crest running up the claw and half the limb, half an inch deep, white and lilac, deeply laciniate; inner segments rather narrower than the outer, spreading, pale lilac, claw short. Stigmas half as long as the perianth-segments recurved, lilac, segments coarsely toothed."| 
| The garden. An illustrated weekly journal of horticulture in all its branches [ed. William Robinson], vol. 50: , fig. 2 (1896)| 
| Gartenflora [E. von Regel], vol. 57: t. 1571 (1908)<img src="%PUBURL%//Spec/SpecTectorum/175325.jpg" style="margin: 10px; float: right; height: 400px;" /> |
| Dykes, The Genus Iris, 1913<img src="%PUBURL%//Hist/GalleryOfPlatesInDykes/Iris_tectorum.jpg" style="margin: 10px; float: right; height: 400px;" /></br>Description.</br> *Rootstock* , a stout, pale, buff-coloured rhizome with sessile shoots, not producing stolons, as do most of the other members of the Evansia section.</br> *Leaves* , thin, pale green, ribbed, 12-18 in. long by 1-2 in. broad, tapering to a point.</br> *Stem* , about 12 in. or rather more in a well-grown plant, bearing reduced leaves and one or two lateral heads.</br> *Spathe* , 2-3 flowered, valves green, pointed, 1½-2 in. long.</br> *Pedicel* , about ½ in., but becoming eventually somewhat longer.</br> *Ovary* , rounded, trigonal, green.</br> *Tube* , 1-1½ in., brown purple.</br> *Falls* , blade almost orbicular, marked with deep lilac veins and mottlings on a paler ground ; crest white, marked with brown violet, deeply and irregularly laciniated ; haft about half as long as the blade, with red lilac veins on a white ground, and wavy edges.</br> *Standards* , blade lilac, obovate, suddenly contracting to a short haft, of which the edges curl over to form a tube. The standards are spreading and slightly concave on the upper surface.</br> *Styles* , narrow, over an inch long.</br> *Crests* , quadrate, finely serrated.</br> *Stigma* , prominent, bilobed, blue.</br> *Filaments* , about equal in length to the anthers, colourless.</br> *Anthers* , cream coloured.</br> *Pollen* , white.</br> *Capsule* , oblong, rounded with 6 ribs, walls of thin tough texture, with a coarsely netted surface, rather more than 1 ½ in. long.</br> *Seeds* , numerous, globose or pyriform, dark black brown, with small but distinct cream-coloured aril.| 
| Krel. 1875; Macoun; Van W. 1912; Farr 1921; Francis 1920; Sheets 1928; Starker 1938; Van T. 1938;|
| Waddick & Zhao, Iris of China, 1992, illustrated in color.| 
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---+++ Synonyms
 Roof Iris; chinensis, Bunge: cristata, Miq.; fimbriata, Klatt; germanica, Somoku Dzusetsu; Rosthornii, Diels; tomiolopha, Hance.
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---+++ Chromosome counts
2n=28, Simonet, 1932; 2n=32, Sharma, 1970; 2n=28, Chimphamba, 1973; 2n=28, Karihaloo,1978; 2n=28, Karihaloo,1984; 2n=28, Huiang, 1986; 2n=36, Mao & Xue, 1986; 2n=28, Huang 1989. 2n=32, Dong et al., 1994.
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---+++ Variations
__Iris tectorum__ cultivars; [[Spec.SpecTectorumAlba]['Alba']]; 'Adamgrove Strain'; 'Atrocaeruleum' 'Burma Form' [[Spec.SpecFreckletec]['Freckletec']], 'Japan Form' 'Lilacina', 'Middleton Blue', 'Moon Gold', 'Norris Strain', 'Oliver Twist', 'Taiwan Form', [[Spec.SpecTectorumAlba]['Tectorum Alba']], 'Tectorum album semi plenum' TECTORUM LILACINA, TECTORUM MAJOR, 'Tectorum Sir Arthur Hort's variety 'Tetratec', 'Variegated tectorum' [[Spec.SpecWoolong]['Woolong']]
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---+++ Hybrids
_Iris tectorum_ crosses [[Main.Spx.SpxArieltec]['Ariel-tec']], [[Main.Spx.SpxDorothea]['Dorothea']], [[Main.Spx.SpxDragonscrest]['Dragonscrest']], [[Main.Spx.SpxFlyingDragon]['Flying Dragon']], [[Main.Spx.SpxHoniana]['Honiana']], [[Main.Spx.SpxLoptec]['Loptec']], [[Main.Spx.SpxLucilla]['Lucilla']], [[Main.Spx.SpxPaltec]['Paltec']], [[Main.Spx.SpxQueensGrace]['Queen's Grace']], 'The Ridges', [[Main.Spx.SpxToltec]['Toltec']]
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---+++ Distribution and Cultivation
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-- Main.ThomasSilvers - 2009-12-10

I	Attachment	Action	Size	Date	Who	Comment
jpg	175325.jpg	manage	88 K	26 Jul 2016 - 19:41	BobPries
jpg	324894.jpg	manage	136 K	26 Jul 2016 - 19:45	BobPries	Gartenflora
jpg	BHP_6607-X2_i_tectorum.jpg	manage	172 K	11 Feb 2016 - 20:17	BrockHeilman	Please contact Brock Heilman for image use.
jpg	Dykes_plate_XVLIII_tectorum.jpg	manage	33 K	04 Jan 2011 - 15:38	UnknownUser	From Dykes plate
jpg	EY-I-TECTORUM_ALBA.jpg	manage	34 K	19 Sep 2010 - 18:16	UnknownUser	Lorena Reid
jpg	I.tectorum01.jpg	manage	68 K	22 Sep 2014 - 14:23	Main.TLaurin	Photo scanned from the John Weiler slide collection
jpg	I.tectorum02.jpg	manage	51 K	22 Sep 2014 - 14:25	Main.TLaurin	Photo scanned from the John Weiler slide collection
jpg	Improved_Tectorums.jpg	manage	44 K	10 Dec 2009 - 20:31	Main.tesilvers	Two Iris tectorum seedlings
jpg	Iris-tectorum-1Walker.jpg	manage	39 K	24 Sep 2013 - 13:00	BobPries	Ken Walker photo
jpg	Iris-tectorum-2Greenfield.jpg	manage	18 K	24 Sep 2013 - 13:02	BobPries	Ken Walker photo
jpg	Iris-tectorum-3Kondratus.jpg	manage	34 K	24 Sep 2013 - 13:05	BobPries	Edmundas Kondratus photo
jpg	Iris-tectorum-4Walker.jpg	manage	64 K	24 Sep 2013 - 13:06	BobPries	Ken Walker photo
jpg	Iris-tectorum-6Walker.jpg	manage	65 K	24 Sep 2013 - 13:07	BobPries	Ken Walker photo
jpg	Iris-tectorum-7Walker.jpg	manage	69 K	24 Sep 2013 - 13:09	BobPries	Ken Walker photo
jpg	Iris_tectorum.jpg	manage	25 K	10 Dec 2009 - 21:11	Main.tesilvers
jpg	Iristectorum01.jpg	manage	79 K	19 Sep 2014 - 16:10	Main.TLaurin	Photo scanned from the Adele and Lewis Lawyer slide collection
jpg	IristectorumDKrambSIGNA01.jpg	manage	62 K	12 Oct 2014 - 03:02	Main.TLaurin	Photo by Dennis Kramb-SIGNA
jpg	IristectorumPBlack01.jpg	manage	64 K	12 Oct 2014 - 02:48	Main.TLaurin	Photo by Paul Black
jpg	Itectorum03.jpg	manage	108 K	06 Jun 2014 - 21:19	Main.TLaurin	Photo scanned from the Rosalie Figge slide collection
jpg	Itectorum04.jpg	manage	99 K	06 Jun 2014 - 21:21	Main.TLaurin	Photo scanned from the Rosalie Figge slide collection
jpg	Itectorum05.jpg	manage	117 K	06 Jun 2014 - 21:22	Main.TLaurin	Photo scanned from the Rosalie Figge slide collection
jpg	SpecTectorumVariegataNH.jpg	manage	32 K	23 Jun 2013 - 13:35	Main.Betsy881	Photo by Nyla Hughes
jpg	SpecTectorumWP.jpg	manage	44 K	15 Jul 2013 - 15:27	Main.Betsy881	Photo by Will Plotner-Wildwood Gardens
jpg	Tectorum_Bot_Mag_6118.jpg	manage	99 K	14 Nov 2013 - 18:08	BobPries	Biodiversity Heritage Library
jpg	i_tectorumblue.jpg	manage	71 K	26 Oct 2013 - 00:28	Main.Harloiris	photo Delane Langton, AIS Dallas 2013
jpg	iris_seed_tectorum_1.jpg	manage	40 K	29 Sep 2010 - 17:58	UnknownUser	seed
jpg	itectorum01.jpg	manage	59 K	23 Aug 2014 - 13:19	Main.TLaurin	Photo by Iris City Gardens
JPG	itectorum03.JPG	manage	84 K	20 Oct 2014 - 21:23	Main.TLaurin	Photo by Joe Pye Weed's Garden
jpg	itectorumvariegated01.jpg	manage	56 K	23 Aug 2014 - 13:21	Main.TLaurin	Photo by Iris City Gardens
jpg	tectorum02.jpg	manage	58 K	25 Apr 2014 - 15:19	Main.TLaurin	Photo by Aitken's Salmon Creek Garden
jpg	tectorum04.jpg	manage	68 K	18 Jun 2015 - 18:55	Main.TLaurin	Photo by Alla Chernoguz-Ukraine
jpg	tectorum05.jpg	manage	57 K	17 Jul 2015 - 15:37	Main.TLaurin	Photo by Barry Blyth-Australia
jpg	tectorum06.jpg	manage	68 K	17 Jul 2015 - 15:39	Main.TLaurin	Photo by Barry Blyth-Australia
jpg	tectorum18.jpg	manage	72 K	03 Mar 2014 - 21:28	Main.TLaurin	Photo by Chad Harris of Mt. Pleasant Iris Farm
JPG	tectorum2.JPG	manage	754 K	06 Feb 2017 - 16:45	Main.TLaurin	Photo scanned from the Glenn Corlew slide collection
jpg	tectorum3.jpg	manage	23 K	12 Feb 2010 - 18:24	Main.shanatse	I. tectorum
JPG	tectorum4.JPG	manage	531 K	06 Mar 2018 - 22:44	Main.TLaurin	Photo scanned from the Nyla Hughes slide collection
JPG	tectorum5.JPG	manage	928 K	13 Dec 2017 - 18:59	Main.TLaurin	Photo by Cascadia Iris Gardens
JPG	tectorum7.JPG	manage	153 K	05 Mar 2023 - 03:17	Main.TLaurin	Photo by Verna Laurin -1961 AIS Convention-Cedarbrook Park
JPG	tectorum70.JPG	manage	185 K	07 Mar 2023 - 03:28	Main.TLaurin	Photo by Verna Laurin -1974 AIS Convention-F. Stepheson Garden
JPG	tectorum71.JPG	manage	207 K	17 Apr 2023 - 02:18	Main.TLaurin	Photo taken at 1989 AIS Memphis Convention by Verna Laurin at the Pierce Garden
JPG	tectorum72.JPG	manage	204 K	17 Apr 2023 - 02:21	Main.TLaurin	Photo taken at 1989 AIS Memphis Convention by Verna Laurin at the Pierce Garden
jpg	tectorum9.jpg	manage	204 K	24 Nov 2021 - 03:23	Main.TLaurin	Photo by Jean Claude Jacob-Iris de la Baie-France
JPG	tectoum8.JPG	manage	61 K	12 Dec 2023 - 14:20	Main.TLaurin	Photo by Alla Chernoguz-Kiev-Ukraine
JPG	tectoum80.JPG	manage	89 K	12 Dec 2023 - 14:21	Main.TLaurin	Photo by Alla Chernoguz-Kiev-Ukraine

Topic revision: r48 - 12 Dec 2023, TLaurin

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