24 
The Apogon Section 
DISTRIBUTION. Manchuria, Corea and Japan. 
Diagnosis. 
Pallas' specimens (BM) seem undoubtedly to be the Asiatic plant but bear no date or locality. 
Manchuria. River Suifun, 17 — , Giildenstadt (BM). 
Lake Hanka, 1898-9, Bohnhof (K) (P). 
Mukden to Kirin, 1886, James (K). 
River Amur, 18 — , Maximowicz (K). 
Nertschinsk, 1889, Freyn (K). 
Sachalin, 1905, Karo (K). 
R. Amur near Radde and Baschurova, 1895, Komarov (BM). 
Corea. Seoul, 1892, Veitch (K). 
Ouen-san, 1906, Faurie (L). 
Tban-jen, 1897, Komarov (K). 
No locality, 1884, Carles, No. 36 (BM). 
Tshu-shima Island. 1859, Wilford (K) (V). 
Japan. Nippon ; Haraki, 1900, Faurie (B). 
Nikko, 1903, Uno (BM). 
1904, Takeda (K). 
Higo san, 1863, Maximowicz (BM). 
Nagasaki, 1863, Maximowicz (BM) (K). 
Tokyo (Musashi), 1908, Yokohama Nursery Co. (E). 
Yezo ; Ochiai Mts. 1904, Faurie (B). 
Shibetcha, 1890, Faurie, No. 5500 (K). 
Akkeshi to Shibetcha, 1889, Faurie, No. 4997 (K). 
Hakodate, 1890, Faurie, No. 6286 (K). 
No locality, 18 — , Buerger (K). 
187-, Maries (K). 
/. orientalis Apogon ; 1 . sibiricae similis sed caulis foliis subaequilongus ; spathae biflorae nec 
multiflorae ; pedicelli breves ; capsula multo longior, oblonga ; semina parva, crassa. 
Description. 
Rootstock , a short-creeping and closely tufted rhizome, with fibrous remains of old leaves attached. 
Leaves, linear, slightly glaucous, often much tinged with red-purple at the base, not rigid, ^ — £ in. 
by 18 in. 
Stem, hollow, equal to or slightly shorter than the leaves, bearing a terminal head of 2 — 3 flowers 
and sometimes (but rarely) a lateral head. 
Spathes, broad, lanceolate, only slightly scarious at flowering time, often of a vivid red-purple colour, 
2-flowered. 
Pedicel, | — 1 in. 
Ovary, trigonal, with a slight ridge down each face. 
Tube , £ circular, with many indistinct ribs. 
Falls. The suborbicular blade narrows abruptly to the short haft, which bears two projecting 
flanges near the base’. The colouring is produced by blue-purple veins on a white ground, which 
is entirely obscured on the outer parts of the blade. The albino variety is milk-white with faint 
yellow veinings on the haft. 
Standards. Broadly oval with a short canaliculate haft, erect and curving together at the apex ; 
slightly shorter than the falls ; either blue-purple or white. 
Styles, shorter than the standards, bluntly keeled, much wider in the upper part than at the base. 
Crests , small, subquadrate, with serrate edge, overlapping. 
Stigma, a triangular, tongue-like projection. 
Filaments, purplish or white. 
Anthers, deep blue or cream. 
Pollen, bluish or cream. 
Capsule , oblong, about three times as long as broad, trigonal, with flat sides, not beaked. See 
Fig. 2 b, p. 23. 
Seeds. Small, comparatively thick and almost cubical. 
Observations. 
The relationship of this plant to I. sibirica has already been discussed at some length under 
the observations on /. sibirica (see p. 22). It is impossible at present to decide whether it should 
be looked upon as a distinct species or merely as a different combination of Mendelian characters. 
It is doubtful whether the form of I. orientalis , of which a flower is illustrated on Plate I and 
which is often imported from Japan, is really a wild form or whether it may not be the result of 
horticultural breeding and selection in Japan, for the larger herbarium specimens seem all to come 
from the neighbourhood of the more thickly populated districts. On the other hand, I. sibirica and 
I. orientalis vary considerably in the vigour of their growth and in the size of their flowers according 
to the nature of the soil in which they are grown and to the character of the particular season. 
1 See Plate I. 
