196 GENTIANE/E. XVI, Seratium. 
XVI. SELA‘TIUM (from cedac, selas, glittering: deep 
colour of the flowers). D. Don, mss.— Gentiàna, Ruiz et Pav. 
in herb. Lamb. 
Lin. syst. Pentándria, Digijnia. Calyx semi-5-parted, mem- 
branous, with linear, acute, flat, erect segments. Corolla 
tubular, 5-lobed. Stamens 5, adnate to the base of the corolla ; 
filaments dilated, flat, attenuated at apex ; anthers incumbent. 
Ovarium fusiform, stipitate. Style very short; stigma 2-lobed : 
lobes flat, cuneate, dilated. Placentas 2; one-half shorter than 
the ovaria.—Perennial plants. Leaves opposite, sessile, veinless, 
with scabrous edges. Flowers terminal, subracemose, drooping. 
1 S. coccinsum (D. Don, mss.) stems terete, ascending, 
branched, leafy ; leaves linear-lanceolate, acute, veinless ; flowers 
subracemose, drooping; corolla twice longer than the calyx. 
u.F. Native of Peru. Gentiana coccinea, Ruiz et Pav. Leaves 
hardly an inch long, with roughish edges. Calycine segments 
ovate-lanceolate, acute. Corollas scarlet. Filaments channelled ; 
anthers oblong. Ovarium oblong. Style hardly any. 
Scarlet-flowered Selatium. Pl. 4 to 1 foot. 
2 S. roniósuu« (D. Don, mss.) stem terete, simple, erect, 
leafy; leaves linear, acute; calycine segments linear, acute, 
erect, length of corolla; flowers terminal, fascicled, erect; 
filaments flat, dilated. 2t. F. Native of Peru, on the Cor- 
dilleras. Stem the thickness of a writing-quill. Leaves crowded 
in an interrupted manner, glabrous, 2 inches long, with scabrous 
edges: radical ones aggregate. Lobes of corolla ovate, acute. 
Pedicels bractless. | Ovarium fusiform. 
Leafy Selatium. | Pl. 3 foot. 
3 S. assu’rcens (D. Don, mss.) stem assurgent, terete ; 
leaves lanceolate, bluntish, 3-nerved, with scabrous edges; 
flowers terminal, in heaps ; peduncles bibracteate; corolla twice 
the length of the calyx, with ovate-lanceolate segments. 2t. F. 
Native of Guayaquil. Stem thickness of a writing quill. Leaves 
13 to 2 inches long. Pedicels filiform. Corollas yellow. 
Assurgent Selatium. Pl. 1 foot. 
4 S. THyRsoipea; stem simple, strong ; leaves long, linear, 
acute; flowers aggregate, axillary, forming altogether a dense 
raceme; corolla campanulate, hardly exceeding the calyx. 2t. H. 
F. Native of Peru, at Huay-Huay, near Pasco. Gentiana 
thyrsoídea, Hook, bot. misc. 2. p. 227. Root fusiform. Stem 
naked at top. Leaves 3-4 inches long. Flowers numerous. 
Anthers oblong, a little longer than the filaments. The plant 
turns black on drying. 
Thyrsoid-flowered Selatium. Pl. 1 foot. 
5 S. INcU'RvUM ; stem naked at bottom and leafy at top; 
leaves elliptic, acute, 3-nerved ; flowers axillary, aggregate at the 
top of the stem; corolla obovate, twice as long as the calyx: with 
obtuse incurved segments. Y.-F. Native of Peru, along with 
the preceding.  Gentiàna incürva, Hook, bot. misc. 2. p. 228. 
Corollas an inch long, yellow. 
Incurved-flowered Selatium. PI. 4 foot. 
6 S. ArrENvA' TUM (D. Don. mss.) stem erect, terete; leaves 
linear-lanceolate, acuminated, many-nerved; peduncles angular, 
elongated, umbellate, bractless ; calycine segments ovate-lanceo- 
late ; corolla tubular: lobes roundish ; seeds roundish. 2%. F. 
Native of Peru. Leaves 14 to 2 inches long, with scabrous 
edges. Pedicels slender, 4 to 5 together, in an umbel. Filaments 
dilated, channelled. Ovarium oblong. Stigma capitate, 2-lobed, 
pruinose. 
Attenuated Selatium. PI. 1 foot. 
7 S. pnirrv'suM (D. Don, mss.) stem filiform, branched, dif- 
fuse, terete; leaves lanceolate, acute, 3-nerved, attenuated at 
the base, petiolate ; peduncles usually by threes, angular, ter- 
minal; calycine segments ovate-lanceolate, acute: corolla 
rotate : with oblong, obovate, mucronate segments. )/. F. Native 
of Peru, at Talcahuano. Root fusiform. Leaves subpetiolate, 
XVII. Uxostoma. 
XVIII. Scuurresia. 
with scabrous edges. Filaments subulate. Anthers and ovarium 
oblong. Stigma sessile, 2-lobed, pruinose. 
Diffuse Selatium. PI. 3 foot. 
8 S. murticau’Lis (D. Don, mss.) stems numerous, ascending, 
tufted, filiform; radical leaves petiolate, spatulate: cauline ones 
linear-lanceolate, acutish ; peduncles usually solitary, terminal ; 
calyx turbinate: with lanceolate, mucronate segments ; corolla 
funnel-shaped, deeply 5-cleft: lobes elliptic, obtuse, connivent. 
Y. F. Native of Peru, Ruiz et Pav. Root long. Plant tufted. 
Radical leaves crowded, all scabrous on the edges. Corolla pale 
lilac, twice longer than the calyx. Filaments dilated at bottom. 
Ovarium fusiform ; stigma sessile, 2-lobed. 
Many-stemmed Selatium. — Pl. tufted. 
Cult. For culture and propagation see Eudoxia, p. 202. 
XVII. ULO'STOMA (meaning unknown to us) D. Don. 
mss.—Gentiana species, Ruiz et Pav. in herb. Lamb. 
Lis. syst. — Pentándria, Digynia. Calyx 5-parted: with 
ovate-lanceolate, acute segments. Corolla funnel-shaped, twice 
longer than the calyx ; limb 5-parted ; tube bearded with long 
hairs inside. Stamens 5; filaments dilated, attenuated at the 
apex; anthers incumbent. Ovarium fusiform. Stigma sessile, 
2-lobed.—A perennial, herbaceous, tufted plant. Stems leafy, 
terete, erect. Leaves opposite, decussate, sessile, linear-lan- 
ceolate, acute, obscurely 3-nerved, with scabrous margins; 
radical ones aggregate. Flowers umbellate, white. ? 
1 U. rirauENTOsA (D. Don, mss.) X.F. Native of Peru. 
Thready Ulostoma. PI. tufted, 4 foot. 
Cult. For culture and propagation see Eudoxia, p. 202. 
XVIII. SCHULTE'SIA (named in honour of Joseph Augustus 
Schultes, M.D. Professor of Botany at Landshut; author of 
Systema Vegetabilium.) Mart. nov. gen. 2. p. 108. 
Lin. syst. Tetrandria, Monogynia. Calyx tubular, 4-cleft, 
4-winged ; wings running out into erect subulate segments. 
Corolla salver-shaped ; with an equal tube, a quadrifid limb, and 
naked throat. Stamens 4; filaments filiform: anthers erect, 
unchangeable in the dried state. Stigma bilamellate. Capsule 
l-celled, 2-valved, many-seeded ; seeds small, angular.— 
Slender, glabrous herbs, Stems tetragonal, simple or forked. 
Leaves sessile, opposite, decussate, lanceolate or linear. Flowers 
terminal, or in the forks. Pedicels continuous with the calyx. 
Corollas fine rose-coloured or yellow. 
1 S. cnzNULIFLORA (Mart. l. c. p. 104. t. 180.) stem erect, 
branched ; leaves ovate-lanceolate, acute ; flowers nearly sessile ; 
wings of calyx broad, half-ovate; segments of corolla nearly 
orbicular, finely crenulated. ©. S. Native of Brazil, in the 
province of Bahia, in alpine, schistous places, near Villa do Rio 
de Contas. Corolla fine yellow, an inch long. Branches 1-2- 
flowered. 
Notch-flowered Schultesia. P1. 11 foot. 
2 S. cna'cins (Mart. l. c. p. 105. t. 181.) stem straight, 
simple, or simply branched; leaves thin, erectish, acute: lower 
ones ovate-lanceolate: upper ones narrow-lanceolate; flowers 
solitary, on long peduncles, erect or drooping; wings of calyx 
narrow; segments of corolla almost square, spreading. ©. S. 
Native of Brazil, in the mine provinces, in mountain fields. Co- 
rolla rose-coloured ; tube yellowish at the base. 
Slender Schultesia. Pl. 1 to 1 foot. 
3 S. AusrETI; stem straight, simple, or a little branched ; 
leaves lanceolate, attenuated, the lower ones shorter and acute ; 
flowers solitary, terminal or axillary, on short peduncles; wings 
of calyx broad ; segments of corolla obtuse, undulated, crenu- 
lated. (9. S. Native of Guiana, Cayenne, Maranham, Trinidad, &c. 
E’xacum Guianénse, Vahl. symb. 3. p. 16. Aubl. guian. 1. p. 
