73 
The Apogon Section 
( Standards nearly as long as the falls ; flowers unveined. 
( Standards much shorter than the falls. 
Standards narrow, acuminate or spoon-shaped ; usually less than half as long as 
the falls ; flowers yellow or cream. 
Standards broad oblanceolate, at least half as long as the falls ; flowers purple. 
t/. LAEVIGATA 
Fischer in Turcz. Cat. Baik. no. 1119 (1837). 
Fischer and Meyer, Ind. Sem. Hort. Petrop. v. p. 36 (1838). 
Turcz. FI. Baic. Dahur. 11. pt 1. p. 196 (1856). 
Maxim, in Bull. Acad. P£t. XXVI. p. 521 (1880). 
•Somoku Zusetsu, II. no. 4 (Japonice Kakitsubata). 
Synonyms. 
/. aestiva, Pallas MS. in Hb. Linn. Soc. from swamps near Lake Baikal, cf. Turcz. l.c. “ad Baikalem 
prope monasterium Possolskoi copiosissime.” 
7 . Maacki, Maxim, in Bull. Acad. Pet. XXVI. p. 542 (1880). 
tjvar. albopurpurea, Plate XVIII, Makino in Bot. Mag. Tokyo, 1909, p. 95. 
Synonym. 
I. albopurpurea , Baker in Bot. Mag. t. 7511 (1896). 
N.B. Owing to the fact that I. Kaempferi and 7 . laevigata have been looked upon as synonymous, 
the literature has become very confused. 
Distribution. Eastern Asia, China and Japan. 
Eastern Asia. Altai Region, 1830, Prescott (K) (E). 
Dahuria, Fischer (C). 
Irkutsk, Hb. Besser (K) (V). 
Schschukin (BM). 
Possolsk, 1829, Turczaninow (SP). 
Amur region, Maximowicz (K) (V). 
Blagowjestschenk, 1898, Karo (BM) (K) (E) (V). 
Eastern Siberia, Hb. Arnott (E). 
R. Amgun, 1909, Kusnezow (SP). 
China. Mukden, 1886, James (K). 
Peiling (Mukden), 1886, Webster (K). 
Yunnan (at 5000 ft.), Henry (no. 11927A) (B) (E). 
Corea . Chemulpo, 1884, Carles (E). 
Japan. Hakodate, 1861, Maximowicz (K) (BM) (V). 
Musashi (Tokio), Samboji, Takeda (K). 
1903, Uno (BM). 
1905, Yokohama Nursery Co. (E). 
Diagnosis. 
I. laevigata Apogon ; folia ensiformia, lata, pedalia, vel sesquipedalia ; caulis foliis brevior, plerumque 
simplex, foliis plerumque trinis abbreviatis infra medium instructus ; segmenta omnia intense coerulea ; 
capsula oblonga, turgida ; semina laevigata. 
Descriptio 7 i. 
Rootstock , a compact somewhat slender rhizome. 
Leaves , pale yellow-green, about 18 in. by i£ in., without the conspicuous midrib of I. Kaempferi. 
Stetn, stout, somewhat crooked, bearing one reduced leaf below the middle and a terminal head of 
3 — 4 flowers. There are also 2 small leaves at the base. In very strong specimens a lateral head 
of 2 — 3 flowers may develop. 
Spathe valves, green, navicular, unequal, sharply keeled, reaching above the tube ; the inner valve is 
sometimes as much as 4 in. in length, while the outer is only 2^ in. 
Pedicel, short at first, and not much above an inch in the fruiting state. 
Ovary, rounded trigonal with a slightly raised ridge down the centre of each side. 
Tube, | in. 
Falls. The large (2^ by 2 in.) obovate blade is about twice as long as the small narrow canali- 
culate haft. The latter is yellow, edged with purplish blue, and the central yellow ridge extends on 
to, and expands a little on, the blade. The colour is a rich deep blue. 
Standards, erect, oblanceolate, about 2^ in. long. 
Styles, 1 — 1£ in. long, becoming wider upwards. 
Crests, large and rounded. 
Stigma, obscurely bilobed. 
Filatnents, short, white. 
Anthers, twice as long as the filaments, white, the pollen sacs being narrow and separated by a 
distinct interval. 
7 Kaempferi (p. 74). 
2. 
7 pseudacorus (p. 76). 
7 versicolor (p. 79). 
D. 
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