■ (SPEC) Iris acutiloba Mey.
1831, Botanical author Carl Anton Meyer
Iris acutiloba Mey.
(Carl Anton Meyer
, 1831, Transcaucasia); Dwarf, Section Oncocyclus
, height 6-12" (15-30 cm);
Although we have followed Mathew and included lineolata
as a subspecies of acutiloba
many botanists in Russia and Turkey would still argue that these are separate species. It is said that lineolata
is more rhizomatous and typical acutiloba
more clump forming. There is also a disjunct in distribution with lineolata
an Iranian plant and acutiloba
occuring in the Transcaucasus North of the River Kura. Also the typical acutiloba
Has two blotches one in the center of the fall and one near the tip of each fall. This form was named bimaculata
. Single blotch specimens are also said to exist but it is unclear that these are separate from lineolata
| Verz. Pl. Cauc. 32: 1831;
| Gartenflora 13: 323. 1874,
| Curtis’s Botanical Magazine, 2nd series, vol. 26(3): t. 654 (1984)
| Krelage 1875; Van Tubergen 1909;
| Dykes in The Genus Iris, 1913;Description. Rootstock , a short compact rhizome, with crowded tufts. Leaves , 1/6-1/4 in. broad by 3-4 in. long at flowering time, linear, more or less falcate. Stem , 1-headed, short, 1 1/2-4 in. Spathe valves , lanceolate, pointed, green, 2 in. long, I-flowered. Pedicel , very short. Ovary , trigonal. Tube , cylindrical, an inch long, green, with purple mottlings. Falls , creamy white, with thick brownish veins ; in front of the styles there is a conspicuous brown signal patch ; the beard is diffuse and composed of brown hairs ; the lanceolate blade is not separated by any constriction from the broad haft, but is sharply reflexed. Standards , broader and longer than the falls, much veined with dark purple-brown on a creamy white or grey ground. Styles , much dotted with brown and coming close down on to the falls. Crests , small, deltoid, reflexed laterally not vertically. Stigma , entire. Fi!aments , greenish. Anthers , green, with dark edges. Pollen , greenish, yellow. Capsule , trigonal, tapering at either end, especially to the apex and dehiscing below the apex. Seeds , nearly spherical, somewhat wrinkled, dark brownish red, with a very conspicuous yellowish white aril, sometimes almost as big as the seed itself.Observations.There appear to be a number of local forms of this Iris, some of which are described in the article already quoted in the Bulletin of the Tiflis Botanic Garden. The varieties there mentioned are: var. typica , Trautvetter (I.e.). The standards are much longer than the falls on which the veins gradually fade away towards the margin. This variety is said to be found near Baku. var. lineolate . The segments are all approximately equal and the veins on the falls are deep in colour and tend to grow thicker instead of fading away as they approach the edge. The falls of this variety are said to extend horizontally and it is possible therefore that this is a synonym for I. Ewbankiana. The locality is given as Dia bar in the Swant district on the right bank of the Cyri. var. Schelkownikowi has larger flowers with very dark standards and a yellow beard on the falls. It comes from the Karadscha-dagh and the Bosdagh on the left bank of the Cyri. var. bimaculata , I can find no description of this variety, of which however I have received seeds through the kindness of M. Fomin of the Tillis Botanic Garden.
| The Gardeners' Chronicle 3rd. Ser. 94: 451. 16 Dec. 1932, illustrated;
| Yr. Bk., I.S.(E.) 41. 1933.
, C. A. Meyer; Oncocyclus acutilobus
Siemss; Iris polakii
Stapf; see also syn. 'Ewbankiana'.
2n=20-Delaunay 1928, 2n=20-Simonet 1932, 2n=20-Zakharyeva & Makushenko 1969; 2n=20-Gustafsson & Wendelbo 1975; 2n=20-Awishai & Zohary 1980.
Iris acutiloba Mey
Several color forms of lineolata
exist with creamy or yellow markings but the usual forms are with creamy white ground color but more or less heavily veined purple-brown; Falls usually reflexed especially in typical acutiloba
, but in some forms, especially lineolata,
they are spreading horizontally, with a conspicuous reddish brown spot for a signal area at the entrance to the pollen tunnel formed by the style arms. The beard of short brownish hairs; Standards larger than falls and pointed, Style greenish dotted brown; filaments and anthers green. From the specimens I have seen subspecies acutiloba
is a smaller plant, whereas lineolata
is larger. Both seem rather easy to grow in pots in an alpine house, following typical Oncocyclus culture. The color variations are very interesting and one could make an interesting collection of these plants. Since they grow in more mountainous areas, they are much cold hardier than some of the Israel-Palestinian Oncocyclus. ---Robert Pries Iris Encyclopedia
has also produced the following hybrids;
And the following cultivars have I. acutiloba
as a grandparent; 'Aril Sanctum'
. 'Darling Who Knows' 'Kazakhstan'
; 'Rojen's Saga'
Distribution and Cultivation
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