The Apogon Section 
93 
Distribution. Northern Asia, Japan, Kamchatka, Alaska, Labrador and the East Coast of N. America down 
as far as Maine. 
Northern Asia. Ochotsk, 1853-6, Wright (K). 
Siberia, 18 — , Fischer, sub nom. brachycuspis (C). 
Amur, 1859, Maximowicz (K) (BM). 
Srednekolymsk, 18 — , Augustinowicz (K). 
Lower Lena, 1875, Czekanowski (K). 
Japan. Nippon, 1905, Faurie (B). 
Yezo, 1905, Faurie (B). 
Mombetsu, 1887, Faurie (P) (K). 
Hakodate, 1855-6, Wright (K). 
Abashiri, 1896, Faurie (P) (K). 
Konoma (Hakodate), 1861, Maximowicz (K) (BM). 
Shimushi Isl. 1877, Milne (BM). 
Rebunshiri Isl. 1892, Faurie, no. 8485 (K). 
Sakhalin. 1873, Schmidt (K). 
1908, Faurie (L). 
Kamchatka. 1900, Littledale (K). 
Petropavlosk, 1900, Shockley (BM). 
Behring Isl. 1891, Macoun (K). 
Alaska. Nome, 1909, Powers, no. 54 (K). 
[N.B. This is the type of Miss Eastwood's I. arctica .] 
Labrador. Cape Wolstenholme, 1872, Waitz (V). 
Okkak, 18—, Waitz (V). 
No locality, 1815, Goetz (V). 
No locality, Parreyss (V). 
East Coast. Maine ; Cutler, 1902, Fernald (V). 
Island near Eastport, 1909, Fernald (HortD). 
Diagnosis. 
I. setosa Apogon ; folia ensiformia ; caulis plerumque ramosus ; segmenta interiora minuta, setosa ; 
capsula inflata ; semina nitida, sutura laterali conspicua. 
Description. 
Rootstock , a thick rhizome covered with the fibrous remains of old leaves. 
Leaves , ensiform, green, slightly glaucous and usually tinged with purple at the base, 1 — 2 ft. long 
and £ — 1 in. broad. 
Stem, stout, solid, deeply forked, bearing several heads of flowers, of which those on the first lateral 
branch rise as high as those on the main stem. A reduced leaf is attached at each bifurcation. 
Spathe valves, narrow, acuminate, unequal, 1^ — 2 in. long, the outer valve being the shorter, green 
or flushed with purple or slightly scarious, 2 — 3-flowered. 
Pedicel, 1 — ij in. long. 
Ovary, acutely trigonal, green or flushed with purple. 
Tube, £ — | in., shorter than the ovary, and scarcely separated from it by any constriction. 
Falls. The orbicular or more usually heart-shaped blade narrows abruptly to the short wedge- 
shaped haft. The latter is veined with purple on a yellowish white ground. The white ground, veined 
with purple, is visible for a short distance on the blade, which then becomes a uniform purple with 
inconspicuous darker veins. The exact shade of purple is very variable ; it is usually a blue purple 
but has sometimes a distinctly red tinge. 
Standards. Variable in shape but not more than £ — § inch long. The most usual form is broad 
at the base, narrowing abruptly to a long fine point. Less frequently the width 
increases a second time before narrowing to a short point (see Fig. 12). 
Styles, short, oblong, about 1 in. long, whitish with purple keel. 
Crests , overlapping, subquadrate, with coarsely serrate edges. 
Stigma, a rounded, triangular tongue. 
Filaments, purple or yellow stained with purple. 
Anthers , purple. 
Pollen, cream. 
Capsule, much inflated, trigonal with grooved sides, scarcely twice as long as 
broad. The seeds soon become detached and rattle in the capsules. 
Seeds, light brown, glossy, with conspicuous raphe down one side (see Plate XLVIII, 
F'g- 15 )- 
Observations. 
It is not at present possible to separate and define the various forms of this Iris that are already 
known to us. It was first found by Pallas in Siberia and extends to the extreme north-eastern corner 
of Asia. From there it passes into Alaska and finally reappears again on the east coast of Canada 
and Maine. Under the names of setosa, setosa canadensis, Hooken and tridentata, I have found growing 
in gardens at least six forms of this Iris. What is more curious is that each form when self-fertilised 
Fig. 12. Full- and 
side- views of the 
two forms of inner 
segments (stand- 
ards) of /. setosa. 
