188 
The Juno Section 
Propagation. 
When a Juno Iris has flowered, more than one new bulb is usually formed, but in most cases the 
increase is much less rapid than with the Xiphion Irises. There are exceptions, however, and I. bttc/iarica, 
/. sindjarensis and /. orchioides increase very rapidly by means of offsets in favourable positions. 
Another method of increasing a stock of Juno Irises would probably consist in lifting the bulbs and 
taking off from each one or two of the fleshy roots. For I have noticed that when roots have been 
accidentally broken off at lifting time and kept until the autumn, there appears on each one a minute 
bud, which probably in a more genial climate than ours would develop into a bulb. I find too that 
Herr Siehe in his paper on the Asia Minor species 1 hints at the possibility of this method of increase. 
Experience has, however, shown it to be unsuccessful in England. 
The process of raising Juno Irises from seed is somewhat lengthy, for the young plants take at 
least four, and often more, years to reach flowering size (see also p. 236). 
Classification. 
Hitherto the Juno section has been left undivided, or at most separated into groups of dwarf and 
tall plants. This, of course, was not satisfactory, for the terms are only 
relative. 
Fortunately further knowledge of the living plants has shown that there 
are at least three well-marked groups within the section, which may be dis- 
tinguished by the shape of the falls (cf. Fig. 26). Moreover, the seeds of 
each section are peculiar. 
The first and most numerous section has winged falls and either spherical 
or pyriform seeds ; the second has falls with an oblong haft narrower than 
the blade and cubical, compressed seeds ; the third has oblong hafted falls with 
a small blade and seeds with a conspicuous aril. 
The fact that, although the species of each group will hybridise with one 
another, no hybrid between members of different groups has yet appeared, 
seems to indicate that these groups follow the lines of natural division. 
Fig. 26. The three types of 
outer segment in the Juno 
section. 
Analytical Key to the Juno Section. 
2. 
3- 
4- 
5- 
6 . 
7- 
8 *. 
9- 
10. 
Outer segments (falls) bearing lateral wings, seeds spherical or pyriform 
without any conspicuous aril. 
Outer segments (falls) not winged but with a strap-shaped haft, seeds either 
cubical or with a conspicuous aril. 
{ Stem not produced. 
Stem produced. 
Leaves broad, falcate at flowering time ; pollen grains covered with spines. 
Leaves narrow, erect at flowering time ; pollen grains covered with a pentagonal 
network. 
Pubescence on the central line of the falls composed of simple hair-like 
processes, only slightly if at all thickened at the apex. 
1 Pubescence composed of hair-like processes, each surmounted by an almost 
spherical boss. 
(Central ridge on the haft and blade of the falls splitting into hair-like threads. 
(Central ridge not splitting into threads. 
J Leaves with a conspicuous, white, horny edge. 
(Leaves without any conspicuous, white, homy edge. 
(Stem tall, slender, bearing a few narrow, widely separated leaves. 
(Stem dwarfer, stout, closely set with broad leaves. 
{ Flowers conspicuously blotched ; leaves very broad and glossy. 
Flowers not conspicuously blotched. 
(Flowers yellow. 
(Flowers lilac or purple. 
(Seeds more or less cubical without conspicuous aril (see Plate XLVIII, Fig. 6). 
1 Seeds globular or pyriform with conspicuous aril (see Plate XLVIII, Fig. 14). 
{ Outer tunics of the bulb a dark olive green. 
Outer tunics of the bulb a pale brown. 
9- 
2. 
4- 
3- 
I. persica (p. 189). 
I. alata (p. 193). 
I. palestina (p. 195). 
I. Tubergeniana (p. 196). 
5- 
6 . 
I. sindjarensis (p. 196). 
I. Aitchisoni (p. 198). 
7- 
I. Willmottiana (p. 198). 
8 . 
I. caucasica * (p. 199). 
I. Stocksii a (p. 201). 
IO. 
14- 
/. Fosleriana (p. 201). 
II. 
1 See ABZ. 1905, p. 113. 
1 This diagnosis of I. caucasica and I. Stocksii is unsatisfactory, but until living plants of J. Stocksii are obtainable, it seems 
impossible to separate the two species in any other way. 
