IPOMGA. To the species described on pp. 191-2, 
Vol. II., the following should now be added : 
I. Horsfalliz alba (white). 
I. Robertsii (G. F. Roberts’). /., sepals 4in. to sin. long ; corolla 
nearly white externally, with pale pink stripes, din. to 4in. long, 
the limb internally white, obscurely striated with pale pink, 
and with five lanceolate, rosy-pink rays ; peduncles one-flowered. 
July. 7. 3in. to 4in. long, membranous, broadly ovate-cordate, 
acuminate, dull green, pubescent; petioles ljin. to 2in. long, 
pubescent. Queensland, 1883. Stove, twining perennial. (B. M. 
6952.) 
I, Thomsoniana (Thomson's). _/. white, Sin. in diameter; cymes 
axillary, few-flowered. J. trifoliolate ; leaflets stalked, elliptic or 
elliptic-oblong, acute, fleshy. 1884. A handsome, stove climber, 
with the general habit of /. Horsfalliw. (F. & P. 1884, p. 118 ; 
G. C. n.s., xx., p. 818.) Syn. J. Horsfalliv alba. 
IRESINE. To the species described on p. 193, 
Vol. II., the following should now be added: 
I. formosa (beautiful). 7. golden, veined with crimson and 
pencilled with green. 1883. A very effective sport from 
I. Lindenti; it keeps its character well out of doors, and makes 
an excellent bedding plant. 
IRIS. To the species described on pp. 194-200, 
Vol. II., the following should now be added: 
A synonym of J, Thomsoniana. 
Sect. I. Irises proper. 
I. Alberti (Dr. Albert Regel’s). #1. bright lilac; tube less than 
lin. long; falls obovate-cuneate, 2in. long, densely bearded, and 
veined dull brown and lilac on a white ground; standards above 
lin. broad, suddenly narrowed to a convolute claw ; panicle lax, 
overtopping the leaves. May. J. ensiform, lift. to 2ft. long, 
aiehily glaucescent. Rootstock stout. Turkestan. (B. M. 
I. arenaria minor (lesser). A dwarf variety, having much 
smaller flowers than those of the type. 
I. Bartoni (Col. Barton’s). 1. two or three in a cluster, strongly 
scented ; perianth tube greenish, lin. long; falls creamy-white, 
veined greenish-yellow on the face, violet-purple on the claw, 
the beard white and orange; standards creamy-white, veined 
purple. June. J. ensiform, pale green, 14ft. long, iin. to 2in. 
broad, strongly ribbed. Stem usually once-forked. Afghanistan, 
1886. (B. M. 6869.) 
I. Biliotti (Biliotti’s). 7. sweet-scented; falls reddish-purple, 
with tine, blackish veins, bearded, Sin. long, Isin. broad, 
cuneate-spathulate; standards bluish-purple, with fine blue 
veins, 3}in, long, 2in. broad, connivent ; styles white, ovate, with 
triangular, reddish-purple crests. Stem 24ft. to Sft. high. Siwas, 
Asia Minor, 1887. Habit as I. germanica. 
I. cengialti (Monte Cengialto). fl. sky-blue, flushed violet ; 
perianth tube, as well as the segments, short and broad, the 
beard white, tipped orange, short and dense, with thick, stunted 
hairs; scape about lft. high, usually four-flowered. May and 
June. J. yellowish-green, 6in. to Yin. long and 4in. broad, or 
ela Monte Cengialto. There are several varieties of this 
plant. 
I. Duthieii (Duthie’s). #7. solitary, sessile; tube din. long or 
more ; falls reddish-lilac with darker veins and blotches above, 
greenish-yellow beneath, nearly horizontal, lanceolate, bearded ; 
standards paler reddish-lilac, with darker veins, connivent, 1{in. 
long, oblong-ovate ; styles light reddish-lilac, with triangular, 
crenate crests. 1. appearing after the flowers, five or six to a 
tuft, 2ft. long, }in. broad, yellowish-green. Rhizome knotted. 
Kumaon, 1887. 
I. Eulefeldi (Eulefeld’s). #. two to a stem; perianth tube 
reddish-purple ; falls purple, with a long, white and bluish- 
purple beard; standards purple and reddish-purple, the claw 
yellowish. May. J. five or six, lft. long or more, more or less 
Talcate, acute, remarkably glaucous, Stem lft. high, with a 
bract or sheathing leaf about half-way up.  Wastern Turkestan, 
1886. (B. M. 6902; R. G. 954.) 
I. germanica Siwas (Siwas). /l., falls dark indigo-purple ; 
standards dark bluish-purple. Siwas, Asia Minor, 1887. 
I. Hookeriana (Hooker's). /l. two toa stem; tube sin. to din. 
long; falls bluish-purple with darker blotches above, green with 
purple borders beneath, obovate-lanceolate, ljin. long, Jin. 
broad, reflexed, densely bearded; standards bluish-purple, 
narrow-obovate, jin. long, Jin. broad; styles reddish-purple, 
very concave, with triangular, serrated, revolute crests. J. lft. 
long, jin. to lin. broad, appearing with the flowers. Stem about 
Sin. long. Lahul, 1887. 
I. Korolkowi concolor (concolorous). A fine variety, with 
almost concolorous, bright lilac-purple flowers. (B. M. 7025 B.) 
I, lineata (lined). #. yellow and greenish-yellow, striated with 
fuscous-red ; standards 2}in. long, erect, lanceolate, acute ; falls 
narrow-lanceolate, acuminate, recurved; spathe herbaceous, 
three-leaved; scape two-flowered. /. four to six, ligulate- 
ensiform, erect, attenuate-acute, about equalling the scape. 
Caucasus, 1887, (R. G. 1244, f, 1-6.) 
SUPPLEMENT. 
555 
Iris— continued. 
I. lupina (wolf's). /. solitary; tube about 2in. long; falls 
greenish-yellow, veined brownish-red towards the margins, Sin. 
long, 1jin. broad, broadly lanceolate, reflexed, serrated, bearded ; 
standards the same colours, 3jin. long, 24in. broad, elliptic, 
connivent, crenate, bearded; styles yellow, with brownish-red 
veins and dots, much recurved, with rounded crests. 1. Qin. 
long or more, jin. broad. Stem 6in. high. Kharput, 1887. 
I. Kingiana (King’s). /l., perianth tube greenish, cylindrical, 
2in. to 24in. long; falls dark lilac, mottled paler lilac, obovate- 
cuneate, witha white and yellow beard ; standards paler lilac, un- 
guiculate, erect ; spathes single-flowered ; peduncle very short. 
May. J. five or six ina rosette, three of them elongated, linear, 
erect, about 6in. long at flowering time. Central Himalayas, 
1887. (B. M. 6957.) 
I. Milesii (Miles’). jl. bright lilac, fugitive, inodorous, three or 
four ina cluster; perianth tube cylindrical, the limb about 2in. 
long; falls having darker lilac lines radiating from the yellow 
keel: standards shorter than the falls. May. J. seven or eight, 
distichous, ensiform, pale green, 1}ft. to 2ft. long, 1sin. broad, 
gradually tapering. Stem 3ft. long, bearing three or four clusters 
of flowers. ‘Temperate Himalayas, 1886. (B. M. 6889.) 
I, Rosenbachiana (Rosenbach’s). _l., outer perianth segments 
spreading or reflexed, emarginately bilobed at apex; claws of the 
standards erect, striped with yellow, l}in. long, the lamina 
obovate, striped orange, dark purple above ; style very long, with 
three terminal branches, petaloid; spathes two-leaved, one- 
flowered. J. three to five, linear-lanceolate, acute. Bulb ovate, 
one to three-flowered. Turkestan, 1886. There are two varieties. 
I. R. ccerulea (blue). /. pale violet within; standards and style 
dark violet at apex. (R. G. 1227 a.) 
I. R. violacea (violet). /l. purplish-violet within ; standards and 
style dark purplish-violet at apex. (R. G. 1227 b.) 
I. Sari lurida (Sari, lurid). /., perianth tube 2in. long, the 
segments 2hin. to Sin. long; falls darker than the standards, 
with a diffused, brownish-black beard; standards violet-purple, 
striped and spotted with darker purple; peduncle one-flowered, 
6in. long. May. J. about six, ensiform, falcate, glaucescent, 6in, 
long, }in. broad. Asia Minor, 1887. (B. M. 6960.) 
I, Statelle (Marquis Statella’s). jl. pale yellowish, veined 
green, bearded yellow on the broadly cuneate-obovate, revolute 
talls; standards broadly oblong, obtuse, over-arching the bifid 
styles. 2 ensiform, 6in. to Yin. long, glaucous-green. Stem 
lft. high, two-flowered at apex. South Europe, 1€86. Allied to 
T. lutescens. (B. M. 6894.) 
I. Suworowi (Suworow’s). _/l. hyaline-greenish, with olivaceous- 
bluish veins; segments all elliptic-lanceolate, cuspidate, the 
falls bearded to the middle with blue. J. ensiform. Stem two- 
flowered, as long as the leaves. Buchara, 1886, 
I, vaga (wandering). #. yellowish, purple, and fuscous-red ; 
standards broadly lanceolate, acute, erect ; falls obovate- 
spathulate, with a bluish-white beard; spathe herbaceous, four- 
leaved, purplish at apex; scape three-flowered. J. ligulate- 
ensiform, acute, erect, slender. Rhizome stoloniferous. 1887. 
(R. G. 1244, f. 7.) 
I. Van Houttei (Van Houtte’s). //. marked with reticulate 
veins of a dark brown or black. April. 1882. A handsome and 
distinct hybrid, said to have been raised between J. susiana and 
T. iberica, and to be more akin to the former, having more 
resemblance to it in the markings. 
Sect. II. Xiphions. 
I. Boissieri (Boissier’s). ji. blue-purple and red-purple. This 
is closely allied to J. jilifolia, ‘but differs in having a very 
distinct tube above the ovary, in having broader and more 
obovate inner perianth segments, in the claw of the outer 
perianth segment being long and narrow, and furnished with 
a very distinct beard which stretches far on into the lamina” 
(M. Foster). 
I. reticulata sophenensis (Sophene). A variety with light 
reddish-purple falls and reddish-lilac standards, Kharput, 1886. 
I. Vartani (Dr. Vartan’s). l., perianth tube nearly white, 24in. 
long, the limb pale slaty-lilac; falls oblong-spathulate, Jin. 
broad, copiously veined lilac on a paler ground, with a yellow, 
carinal crest; standards erect, din. broad ; peduncle very short. 
October to December. /., produced ones usually two, 8in. to 12in. 
long, dark green. Palestine. (B. M. 6942.) 
ISOTOMA. To the species described on pp. 202-3, 
Vol. If., the following should now be added: 
I. petrzea (rock-loving). ., white, verging to flesh-colour, 14in. 
long, the segments horizontal or reflexed, the three lower ones 
yellowish at their junction. /. lanceolate or ovate-lanceolate, 
acuminate, unequally laciniate. Stems branched, often lft. long 
and many-fowered. Flinders Range. Plant highly glabrous. 
IXORA. To the species described on pp. 204-5, 
Vol. II., the following varieties, &c., should now be 
added : 
I. conspicua (conspicuous). A handsome form, with large trusses 
of buff-yellow flowers, changing to bright orange. 1886, 
