188 GENTIANEJE. XI. EunvrHALIA. 
Europe, as of Valais, even to Siberia. 
dauph. 2. p. 532. Freel. gent. p. 98. Wahl. lapp. p. 69. 
carp. p. 75. Gent. nivalis, Lam. dict. suppl. 2. p. 733. no. 68. 
Hall. helv. 652. Híppion longepedunculàtum, Schmidt, in Roem. 
arch. 1. p. 21. t. 2. f. 5. Gent. nana, All. pedem. 1. p. 99. 
no. 360. Nearly allied to E. amarélla. Corolla deep blue, 
having 2 small fringed segments to each segment of the corolla. 
Capsule elongated. 
Far. (8, tenélla ; corolla 4-cleft, bearded; stem subdichoto- 
mous ; peduncles very long ; leaves subovate, bluntish. ©. H 
Native of the north of Europe. Gent. tenélla, Froel. gent. p. 
96. Willd. spec. 1349. Pers. syn. 1. p. 286. Rottb. act. 
hafn. 10. p. 436. t. 2. f. 6. Townson, trav. hung. t. 14. Vahl, 
act. soc. hafn. 2. p. 2. t. 21. Fl.dan. t. 318. Gent. tetra- 
góna, Lam. ill. no. 2233. Gmel. syst. p. 462. Roth. germ. 2. 
p. 290. Hippion tenéllum, Schmidt, in Roem. arch. 1. p. 19. 
Gent. Konigii, Gunn. fl. norv. no. 288. Gent. campéstris 8, 
Gentiàna glacialis, Vill. 
Lin. syst. p. 269. no. 34. Gmel. syst. p. 460. no. 7. Corollas 
deep blue. 
Var. y, uniflora; stem simple, 1-flowered. (2. H. Gent. 
glaciàlis 3, Freel. gent. p. 98. 
Icy Eurythalia. Fl. Aug. Clt. 1819. Pl. 4 to 4 foot. 
18 E. picHórOMA ; stem tetragonal, dichotomously branched ; 
leaves subovate, acute; peduncles very long; corolla 5-cleft, 
with a bearded throat, and oblong, obtuse, hardly spreading seg- 
ments. ©.H. Native of Siberia, from the Lena to the Eastern 
Ocean. Gent. dichótoma, Pall. fl. ross. 2. p. 110. Freel. gent. 
p. 100. Híppion dichótomum, Schmidt. Gent. borealis, Ledeb. 
act. nat. soc. mosc. 3. p. 357. Gent. glaciàlis, Led. fl. alt. 1. p. 
288.—Gmel. sib. 4. p. 106. t. 51. f. B. This species differs from 
E. glaciális in the stem being finely forked, filiform, and rather 
flexuous. Leaves at all the forks, and on the peduncles. 
Calyx divided almost to the base; segments lanceolate, acute. 
Corolla purplish; tube longer than the calyx. The corollas 
vary to 4-cleft, and to a white colour. Said by Cham. in 
Linnea, 1. p. 182. to be the same as E. glacialis. 
Dichotomous Eurythalia. Pl. 1 foot. 
14 E. wA'NA (Borkh. in Roem. arch. 1. p. 28.) stem tetra- 
gonal, decumbent, filiform, dichotomous, leafy at bottom, with 
ascending, tufted branches ; radical leaves obovate: cauline ones 
ovate, obtuse; peduncles hardly the length of the flowers ; 
corolla 5-cleft, rarely 4-cleft, campanulate, with a bearded 
throat, and ovate, acutish segments. ©. H. Native of the 
alps of Carinthia and Salzburg, near the limits of perpetual 
snow. Gent.nana, Wulf. in Jacq. misc. 1. p. 161. t. 18. f. 3. 
Freel. gent. p. 102. Híppion nànum, Schmidt, in Roem. arch. 
p. 20. t. 3. f. 10. Root yellowish. Radical leaves usually 4, 
rarely more, rosulate. Calycine segments ovate, lanceolate, acut- 
ish, nearly equal. Corolla with a whitish tube, nearly the length 
of the calyx, and a deep violaceous limb, and a white bipartite 
beard. Stigmas ovate. 
Var. B; stem simple, shorter than the flower. ©. H. Freel. 
gent. l. c. 
Var. y ; corollas white. 
Dwarf Eurythalia. 
Cult. 
C.H. Freel. gent. l. 
Fl.July, Aug. Pl. 1 to 2 inches. 
For culture and propagation see Pleurógyna, below. 
XII. PLEURO'GYNA (from zAÀevpa, pleura, a side, and 
yvrn, gyne, a female; in reference to the 2 stigmas being adnate 
longitudinally to both sides of the ovarium). ^ Eschsch. mss. 
ex Schlecht. in Linnza. 1. p. 187.— Gentiàna species of authors. 
—Swértia species of Linnaeus. 
Lin. syst. — Pentándria, Digynia. Calyx 5-cleft. Corolla 
rotate, spreading, 5-cleft ; with a fringed or scaly throat. Sta- 
XII. Prevrocyna. XIII. Ertcara. 
mens 5; filaments filiform; anthers free, incumbent. Stig- 
mas 2, adnate longitudinally to the sutures on both sides of 
the ovarium. Capsule elongated, l-celled, 2-valved. Seeds 
minute, globose, scobiform.—Annual plants. Leaves opposite, 
decussate: radical ones rosulate. Flowers blue. 
1 P. CaniNTHIaCA ; stem short, tetragonal, dichotomous, leaves 
ovate-lanceolate, obtuse ; peduncles very long, naked; corolla 
rotate, 5-cleft; with bristles in the throat. (2. H. Native of 
Carinthia, and Salzburg, on the tops of the alps. Gentiàna 
Carinthiaca, Freel. gent. p. 103. Willd. spec. 1. p. 1350. 
Swértia Carinthiaca, Wulf. in Jacq. mise. 2. p. 53. t. 6. Lin. 
syst.ed. 14. Murr. p. 266. Root yellowish. Stem slender. 
Branches and peduncles erect or ascending. Radical leaves 4, 
rosulate, oblong-ovate: cauline ones twin above the base. Ca- 
lycine segments cut almost to the base, ovate-lanceolate, obtuse, 
nearly equal, shorter than the corolla. Segments of corolla 
ovate, acute, sky blue above, and white and violaceous beneath. 
Bristles in the throat short and white. Capsule elongated, an- 
gular. Stigmas obtuse. 
Carinthian Pleurogyna. FI. July, Aug. Clt. 1817. Pl. 2 ft. 
2 P., suzca‘ra; stem tetragonal, dichotomous; leaves linear ; 
segments of corolla oblong, acute; corolla rotate, 5-cleft: with 
scales in the throat; calycine segments lanceolate-linear. ©. 
H. Native of Iceland and Norway. Gent. sulcàta, Willd. 
spec. l. p. 1351.  Swértia sulcàta, Rottb. act. hafn. 10. p. 438. 
t. 1. f. 4. Retz. scan. ed. 2. no. 309. Swértia rotàta, Gunn. 
norw. no. 1077. fl. dan. t. 343. Gent. rotàta (9, Froel. gent. 
p. 106. Corollalength of calyx. Stem spicately branched, many- 
flowered, leafy, ex Fl. dan. l. c. Ovarium compressed, furrowed. 
Furromed-capsuled Pleurogyna. Pl. $ to 4 foot. 
3 P. rora'ta; stem simple or branched from the middle, 
obsoletely tetragonal; leaves ovate-lanceolate, acutish, strict ; 
segments of calyx ovate-lanceolate, one half shorter than the co- 
rola. ©. H. Native throughout Siberia, in humid places. 
Gentiàna rotàta, Froel. gent. p. 105. Led.fl.alt. 1. p. 289. Swértia 
rotàta, Lin. spec. 1. p. 1351. Pall. fl. 2. t. 89. f. 1. and 2.— 
Gmel. sib. 4. t. 53. f. 1. Root yellow, fascicled. Branches 
sub-fastigiate. Radical leaves 4, rosulate, obovate, obtuse: 
cauline ones lanceolate, acutish, sub-trinerved, shorter than the 
internodes. Segments of calyx linear-acute, 3-nerved, a little 
shorter than the corolla. Corolla blue, 5-parted. Scales 10 in 
the throat, variously cut. Ovarium cylindrical, compressed, 
furrowed in the middle. 
Rotate-flowered Pleurogyna. Pl. i to 1 foot. 
4 P. STELLERIA`NA (Cham. et Schlecht, in Linnea. 1. p. 188.) 
leaves ovate, acute ; calycine segments ovate, lanceolate, acute, 
one half shorter than the corolla. ©.H. Native of eastern 
Siberia, Kamtschatka, and Caucasus. Swértia rotàta, Pall. fl. 
ross. t. 89. f. 3. Bieb. cauc. 1. p. 199.—Gmel. sib. 4. p. 112. 
t. 52. f. 2. Stem many-flowered, branched from the base; 
branches fastigiate. Corolla 5-cleft. 
Steller's Pleurogyna. Pl. 1 to 3 foot. 
Cult. The species of this genus are almost uncultivatable ; 
although several of them are extremely common in chalky 
parts of Britain. We would recommend the seed to be sown 
in chalky soil, or soil well mixed with chalk or marl, in which 
they will probably grow in a cultivated state. 
XII. ERICA'LA (meaning unknown to us) Renealm. 
specim. p. 75. t. 68.  Ericoila, Borkh. in Roem. arch. 1. p. 27. 
Gentiàna species of authors. Hippion species of Schmidt. 
Lin. syst.  Pentándria, Digynia. Calyx 8-5-cleft. Corolla 
funnel-shaped or salver-shaped, 8-10-cleft; the alternate seg- 
ments usually smaller, entire, bifid or fringed, but never bearded. 
Stamens 4-5; filaments filiform. Anthers incumbent, linear 
