210 GENTIANE/E. XXXIX. Listanruus. 
acute, petiolate, with 2 oblique nerves; peduncles solitary or 
twin, long, bracteolate under the flower; calyx turbinate ; co- 
rolla with a short tube, a ventricose sub-campanulate, inflexed 
limb ; and ovate, obtuse, rather irregular segments. ©. S. 
Native of South America. Leaves 12-20 lines long, and 5-6 
broad. Bracteas minute. Corolla yellow. ? 
Campanulate-flowered Lisianthus. Pl. 1 to 14 foot. 
31 L. wienE'scENs (Cham. et Schlecht, in Linnea, 6. p. 388.) 
stem and branches terete; leaves of the sterile branches half 
stem-clasping, ovate, with rounded, stem-clasping auricles, 
which are lanceolate at the base, acuminated, pale green above, 
but paler beneath; panicle large, loose-flowered ; calycine seg- 
ments narrow-lanceolate, acuminated ; corolla almost funnel- 
shaped ; with elliptic-acuminated segments. ©. G. Native 
of Mexico, in woods, at Papantla. Leaves 6 inches long, and 2 
inches broad. Corolla blackish in the dried state, but probably 
greenish yellow in the recent state. Capsule elliptic. 
Blackish-flowered Lisianthus. Pl. 1 to 2 feet. 
32 L. saponarioipes (Cham. et Schlecht. l. c. p. 389.) stem 
branched, nearly terete at bottom, but obsoletely tetragonal at 
top; leaves nearly sessile, ovate-lanceolate, acuminated, with 
rather scabrous edges ; inflorescence a compound cyme. Xt. G. 
Native of Mexico, at Papantla, on the edges of woods. Leaves 
5 inches long. Calycine segments lanceolate, acuminated. Co- 
rolla white, salver-shaped; with ovate, acuminated segments. 
Capsule elliptic or ovate. 
Saponaria-like Lisianthus. Pl. 1 to 2 feet. ? 
T Species not sufficiently known ; and probably not belonging to 
the genus. 
33 L. cartna‘tus (Desr. in Lam. dict. 3. p. 659. ill. t. 107. f. 
3.) glabrous ; stem branched ; branches tetragonal; leaves 
roundish-ovate, sessile, 3-nerved; calyx prismatic, having the 
segments keeled upwards; corolla with a slender tube, and 
ovate, spreading segments. h. S. Native of Madagascar. 
Leaves sub-connate. Flowers erect, pedicellate, terminal and 
axillary. Corolla 3 times longer than the calyx. Capsule 
ovate-oblong. 
Keeled-calyxed Lisianthus. Shrub. 
34 L. rrine’rvis (Desr. in Lam. dict. 3. p. 659. ill. p. 476.) 
downy; stem sub-tetragonal; leaves ovate, mucronate, on short 
petioles; flowers in loose terminal, trichotomous panicles, pedi- 
cellate; calyx deeply divided, with keeled segments ; limb of 
corolla parted nearly to the base into narrow segments. 2. S. 
Native of Madagascar. Leaves beset with short hairs on both 
surfaces; bracteas short, lanceolate, acute. Capsule ovate. 
Three-nerved-leaved Lisianthus. Pl. 14 foot. 
35 L. rupirtorus (Pet. Th. in Willd. mss. ex Roem. et 
Schultes, syst. 4. p. 788.) glabrous; stem terete ; leaves ovate, 
acuminated, petiolate, 3-nerved ; umbels terminal, few-flowered ; 
calyx ventricose, contracted at top; tube of corolla 6 inches 
long; limb wide: with ovate, acuminated segments. h.? S. 
Native of Madagascar. Superior leaves lanceolate, 4 inches 
long, longer than the internodes. 
Tube-flowered Lisianthus. Shrub.? 
Cult. Most of the species of Lisiánthus are very handsome 
when in blossom. A mixture of loam, sand, and peat is a good 
soil for them ; and cuttings of the shrubby and perennial species 
strike root readily in sand, under a hand-glass. The annual 
kinds require the same as that recommended for E'xacum, p. 213. 
XL. IRLBA'CHIA (named by Martius, in honour of Gabriel, 
Count de Bray, of the dynasty of Irlbach, ambassador from the 
King of Bavaria to the Court of Spain.) Mart. nov. gen. bras. 
2. p. 101. 
Lis. syst. 
Pentándria, Monogynia. Calyx campanulate, 5- 
XL. [ĪRLBACHIA. 
XLI. SvusonawTHUs. XLII. Evsroma. 
cleft; segments erect, with membranous margins. Corolia 
funnel-shaped, equal, deciduous; limb 5-cleft; throat naked. 
Anthers revolute when dry. Stigma bifid; segments cylindri- 
cal, not bi-lamellate. Capsule 2-celled, 2-valved, many-seeded ; 
margins of valves placentiferous. bent inwards.—An erect, gla- 
brous herb. Stems tetragonal, fistular. Leaves opposite, de- 
cussate, petiolate, triple or quintuple-nerved. Flowers alter- 
nate, disposed in dichotomous panicles. This genus differs 
from Lisiánthus in the regular corolla, and structure of the 
stigma. 
1 I. &'zzcANs (Mart. l. c. p. 102. t. 179.) leaves lanceolate, 
acuminated; rachis of panicle geniculately bent. (2. S. Na- 
tive of Brazil, in the province of Rio Negro, near Ega, in 
moist, sylvan meadows. Corolla blue, a nail in length. Ra- 
cemes long, twin, with a flower in the fork between them. 
Elegant Irlbachia. | Pl. 14 to 2 feet. 
Cult. For culture and propagation see E’xacum, p. 213. 
XLI. SYMBOLA'NTHUS (from evyu(JoXov, symbolon, a ring ; 
in reference to the ring at the base of the filaments.) Lisian- 
thus species, Ruiz. et Pav. and H. B. et Kunth. 
Lin. syst. — Pentándria, Monogynia. Calyx 5-parted, pen- 
tagonal; segments with membranous margins. Corolla salver- 
shaped, with a cylindrical tube, 3 times longer than the calyx ; 
and a 5-parted limb; segments with crenulately fringed edges. 
Stamens inserted in the tube, hardly exserted ; anthers sagittate, 
at length convolute, having a short, ring-formed, crenulated, 
membrane at the base of the filaments. Ovarium ovate, com- 
pressed, l-celled, 2-valved ; placentas 2, parietal, bilamellate, 
bearing seeds on the back. Stigma 2-lobed ; lobes linear- 
oblong, flat, blunt. Capsule ovate.—Glabrous, branched shrubs ; 
branches tetragonal. Leaves opposite, decussate, on short pe- 
tioles, with a prominent middle nerve, obsoletely veined ; pe- 
tioles round at the base. Flowers axillary, solitary, or 2-3 
terminal, rose-coloured. 
1S. Kvo'wrunu; leaves oblong, acute; flowers pedicellate, 
axillary ones solitary, and terminal ones 2-3 together; corolla 
salver-shaped, with fringed segments. b. S. Native of New 
Granada, on mountains between Honda and Mariquita. Lisián- 
thus anómalus, H. B. et Kunth, nov. gen. amer. 3. p. 184. 
Branches sub-dichotomous. Leaves 23 inches long. Flowers 
size of the following species. Bracteas oblong, sub-spatha- 
ceous. 
Kunth's Symbolanthus. Shrub 5 to 6 feet. 
2 S. Pavóxn; leaves ovate-lanceolate; flowers pedicellate, 
axillary, solitary; calyx pentagonal; corolla sub-ringent. h. 
S. Native of Peru, on the mountains. Lisidnthus calygonus, 
Ruiz, et Pav. fl. per. 2.t. 196. Leaves 2-3 inches long. Pedi- 
cels curved, furnished with 3 ovate, concave, acuminated, brac- 
teas each. The 3 outer segments of the calyx are lanceolate, 
and 2 inner, sub-sagittate, all with membranous, fringed edges. 
Corolla rüb-ringent, rose-coloured, large, with acuminated, re- 
flexed segments. 
Pavon's Symbolanthus. Shrub 5 to 6 feet. 
Cult. For culture and propagation see Tachia, p. 197. 
XLII. EUSSTOMA (from evaropioc, a beautiful mouth; in 
reference to the fair corollas). Sal. par. lond. t. 34.—Lisianthus 
species of authors. 
Lin. syst, Pentándria, Monogynia. Calyx deeply 5-cleft, 
having the backs of the segments more or less winged. Corolla 
with a funnel-shaped tube, which is contracted a little at the 
apex; and a deeply 5-cleft limb, which is longer than the tube, 
and is variegated below the middle above. Stamens 5, inserted 
near the middle of the tube, and a little longer than it ; filaments 
erect, linear-lanceolate ; anthers rather sagittate. Ovarium 
