■ (SPEC) Iris germanica L. alba Service
2002, Collected by Nigel Service
Iris germanica 'Alba'
, 2002). Section Iris
; Iris germanica 'Alba'. Described in SIGNA#68 by Nigel Service as; "Leaves
about 50 cm (20 in.) long x 3-3,5 cm (1.2-1.4 in.) wide, broadest about 2/3rds of the way up. The most evergreen group, average 14.253 on the scal of 15. Stem
averaging about 59 cm (24 in.), the longest measuring 76 cm (30 in.). Stems over 65 cm (26 in.) not uncommon, usually with 5-7 basal leaves, al long, one low set stem leaf and another above, short and rather bract-like. Sometimes 3-branched, usually 2. In a branched specimen the lowest branch 13-19 cm (5.1-7.5 in.) long set at about 30 cm (12 in.), the middle branch 4-13 cm (1.6-5.1 in.) long, the upper sessile 5,5 cm (2.2 in.) long, rarely up to 9 cm (3.5 in.) long. In 2-branch stems the upper branch can reach 10 cm (3.9 in.) long and will sometimes exceed the stem as the highest point of the inflorescence. The subtending bracts are bract-like to shortly foliate and green; measuring 6-10 cm (2.4-3.9 in.) on the lowest branch, and bract-like on the upper ones. The bracts
, on first emerging from the leaves are green and quite unstained. Shortly before the whiteness of the bud becomes visible there is a distinct, large, pale flecking over the spathes and the upper bracts and some slight pigmentation towards the apex, and this persists until they become scarious. The spathes remain green, often less than 1/3 scarious at the commencement of flowering. Outer valve 3,5 cm-4 cm (1.4-1.6 in.) long, inner valve about 4,5 cm (1.8 in.) long. 2-flowered at the apex and sometimes on the lowest branch. Rarely but lower branches can be 2-flowered. Buds a slightly blued white. Flower
white, not always clean, diameter 8.0-9.0 cm (3.1-3.5 in.). Flower size large. Almost unscented. Pedicel very short, about 4 mm (0.16 in.). Ovary
about 1,8-2,2 cm (0.7-0.9 in.) long x 0,9 cm (0.4 in.) wide, roundedly octagonal 6-grooved, three being deeper. Tube 2,6 cm (1.0 in. ) long, light green with a slightly darker, whitened-green line below the standards, ± running down onto the top of the ovary. Falls
white, often irregularly marked with a more or less faint purple slightly yellowed around the beard, tending to be recurved and tucked in. Haft white, yellowed towards the edge, veined olive green: reverse base green. Striation ground white, striations green, not extending to the end of the beard. Beard white tipped yellow, becoming orange in haft. About 8,8-9,5 cm (3.4-3.7 in.) long x 5,3 cm (2.1 in.) wide. Standards
shorter and narrower than falls, although obovate, less distinctly so than some groups. White, sometimes also with some purple coloration. Haft yellowed with slightly purpled markings becoming green on base of blade. Very slightly bearded often, on at least one standard. 8-9 cm (3.0-3.5 in.) long x about 4,4 cm (1.8 in.) wide. Style arms
white, about 5,7 cm (2.3 in.) long overall with crest of 1,8 cm (0.7 in.), white, acute tipped, the lobes diverging only towards the apex. Filaments white 1,9 cm (0.8 in.). Anthers
pale cream, 1,7 cm (0.7 in.). Pollen
trigonal with rounded, deeply grooved angles and somewhat concave sides, shallowly grooved, oval to obovate with obtuse ends. 4,5-5 cm (1.9-2.0 in.) long x 2,1-2,5 cm (0.8-1.0 in.) wide. Seeds variable, elliptic to oval, acute at one or both ends, lightish brown, wrinkled, usually about 5,5-7 mm (0.22-0.28 in.) long x 3,5-5 mm (0.14-0.2 in.) wide. Flowering season
; late-mid. Capsules are formed easily and seed is produced nearly every year, seeming to germinate easily. Distribution
: Alba is only found in a quite small region of Southern France, the area around the lower part of the Rhone, mainly to the west of the river. It is very common in that area. Discussion; Alba is unusual in being able to produce two flowers on the branches. I have one record of a stem with three branches, two flowered on each and at the apex. It is also exceptional among these forms (other germanicas) in having its standards both shorter and narrower than it's falls. The latter dimension seems especially curious." These are probably the same cultivar as GERMANICA ALBA, see entry above. Iris germanica L.
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