240 
Cult. The species of Diapénsia are small, tufted, evergreen, 
alpine plants, difficult of culture. They should be grown in 
small pots, well-drained with sherds, in a mixture of sand and 
peat, and placed among other alpine plants. They require to be 
protected from frost and wet in winter, by placing them in a 
frame. They may be increased by dividing at the roots. 
III. PHLOX (from ¢oé, phlox, flame; in reference to the 
bright colour of the flowers.) Lin. gen. no. 214. Schreb. gen. 
284. Juss. gen. 139. edit. Usteri, 152. Gaertn. fruct. 1. p. 
299. t. 62. Lam. ill. 108. Nutt. gen. amer. 1. p. 125. Ly- 
chnidéa, Dill, elth. 166. 
Lin. syst. Pentándria, Monogynia. Calyx deeply 5-cleft 
(f. 27. a.), sub-cylindrical or sub-prismatic; segments acute, 
connivent. Corolla salver-shaped (f. 27. d.), with a narrow, 
sub-cylindrical tube, which is a little curved, and longer than the 
calyx; limb spreading, twisted in zestivation, as in Apocynee ; 
segments cuneate. Stamens 5, unequal (f. 27. b.), 3 longer, 
and 2 shorter, inserted in the tube above the middle ; filaments 
filiform; anthers sagittate, elevated to the orifice of the tube of 
the corolla. Capsule roundish; valves membranous; cells 1 
seeded. Seeds oblong, convex outside. Albumen large. Radicle 
twice longer than the cotyledons.—Herbaceous, perennial, rarely 
suffruticose plants, with opposite, simple leaves: but the floral 
ones are sometimes alternate, sessile. Flowers terminal, pani- 
cled or corymbose, lilac, rose-coloured or red, blue, or white. 
§ 1. Leaves broad. Plants without any barren stems. 
1 P. PAN1cULA TA (Lin. spec. 216. Ait. hort. kew. 1. p. 205.) 
erect, glabrous ; leaves lanceolate, gradually narrowed, flat, with 
rough edges; corymbs panicled ; segments of corolla roundish, 
of the calyx awned. 2%.H. Native of Virginia and Lower 
Carolina, in rich moist meadows. Mill. fig. 2. t. 205. f. 2.— 
Dill. elth. f. 166. f. 203. Flowers purple. 
Var. D, álba; flowers white, with a tinge of red. 21. H. 
Native of North America, Lyon. A more robust plant than 
var. a, and probably a distinct species. 
Panicled-flowered Phlox. Fl. Aug. Sept. 
3 to 4 feet. 
2 P. uNDULA TA (Ait. hort. kew. 1. p. 205.) erect, glabrous; 
leaves oblong-lanceolate, somewhat undulated, with scabrous 
edges; corymbs panicled ; segments of corolla obovate, some- 
what retuse; of the calyxes awned. X4. H. Native of Vir- 
ginia and Carolina, in high mountains and meadows. P. pani- 
culàta, Michx. fl. amer. 1. p. 144. Flowers purple. A beau- 
tiful plant, resembling the preceding; and the flowers of the 
same colour. 
Undulated-leaved Phlox. 
to 5 feet. 
3 P. pyramipa‘Lis (Smith, exot. bot. 2. p. 55. t. 87.) erect, 
glabrous; stem scabrous, spotted ; leaves cordate-oblong, acu- 
minated; panicle fastigiate, pyramidal; segments of corolla 
cuneately truncate ; calycine teeth erect, lanceolate, acute, gla- 
brous, with scabrous edges. t. H. Native from Pennsyl- 
vania to Carolina, in mountain meadows. Lodd. bot. cab. 342. 
Sweet, fl. gard, 233, P. Carolina, Walt. fl. car. 296. Flowers 
pale flesh-coloured, or lilac. 
Var. f, penduliftóra (Hort.) flowers rather pendulous. 
Var. y, corymbósa (Hort.) flowers densely corymbose. 
Pyramidal-flowered Phlox. Fl. Ju. Aug. Clt. 1800. 
3 to 3 feet. 
4 P. vatiroria (Michx. fl. amer. bor, 1. p. 143.) erect, gla- 
brous; stem smooth; leaves cordate-ovate; flowers fastigiately 
(C1t:31782 2 BI: 
Fl.July, Aug. Clt. 1759. Pl.4 
PI 
POLEMONIACE E. 
III. Purox. 
corymbose ; segments of corolla nearly orbicular; teeth of calyx 
lanceolate, hardly acuminated. %. H. Native of Carolina, 
in shady places, among SpAágnum. Flowers large, purple. 
Perhaps only a variety of P. pyramidàlis. 
Broad-leaved Phlox. Fl. Ju. Aug. Clt. 1812. Pl. 3 feet. 
5 P. conpA rA (Ell. fl. corol. 2. p. 40. Sweet, fl. gard. n. s. t. 
13.) stems smooth, slightly tetragonal; leaves oblong-cordate, 
acuminated, with scabrous edges; corymbs panicled, pyrami- 
dal; pedicels and calyxes downy ; calycine segments long- 
awned ; corolla with a downy tube, and obovate, rounded, dis- 
tinct segments. %. H. Native of Carolina. Corollas of a 
bright purplish lilac colour. 
Cordate-leaved Phlox. 
3 feet. 
6 P. conyMsósa (Hortul. ex Sweet, fl. gard. n. s. t. 114.) 
stem erect, downy, branched at top, rather tetragonal; leaves 
oblong-lanceolate, undulated, downy beneath, with scabrous 
edges; corymbs panicled; calycine teeth subulate; segments 
of corolla roundish-obovate, imbricate. — 2t. H. Native of 
North America. Stems more or less purple. Branches of 
corymb many-flowered. Corollas purplish lilac, with a white 
star at the base. Tube of corolla downy. 
Corymbose-flowered Phlox.  Fl.? Clt.? 8 to 4 feet. 
7 P. macura‘ta (Lin. spec. 216.) erect; stem scabrous, 
spotted ; leaves oblong-lanceolate, glabrous, with rough edges; 
panicle oblong, crowded with flowers ; segments of corolla 
roundish ; teeth of calyx acute, recurved. 2t. H. Native from 
New England to Carolina, in wet meadows. Pursh, fl. 1. p. 
149. Jacq. hort. vind. 2. p. 58. t. 127. Gaertn. fruct. p. 299. 
Flowers purplish, violet or purple. Stem marked with brown 
spots. 
Spotted-stemmed Phlox. 
feet. 
8 P. opora‘ra (Sweet, fl. gard. t. 224.) stems erect, branched 
at top, rather scabrous; leaves acuminated, glabrous, with sca- 
brous edges: lower ones linear: middle oblong-lanceolate : 
superior ones cordate-ovate ; branches corymbose, many- 
flowered, somewhat fastigiate; teeth of calyx ovate, shortly acu- 
minated, erect ; segments of corolla cuneately obovate. .. %. H. 
Native of North America.  Phlóx bimaculàta, Hort. Flowers 
of a bright red lilac colour, sweet-scented. Branches of corymb 
forming a thyrsoid raceme. Nearly allied to P. glabérrima 
and P. maculata. 
Sweet-scented Phlox. Fl. Aug. Clt.? Pl. 3 feet. 
9 P. nzrLE/xa (Hortul. Sweet, fl. gard. t. 232.) stems 
downy, scabrous, spotted; leaves reflexed, glabrous, shining 
above: lower ones narrow-lanceolate: superior ones cordate, 
acute; flowers crowded, panicled, with many-flowered branches ; 
teeth of calyx lanceolate, mucronate, spreading ; tube of corolla 
glabrous, curved; segments of the limb roundish-obovate, im- 
bricated at the base. 2. H. A hybrid production. Flowers 
dark purple, in close, crowded panicles, sweet-scented. 
i Reflexed-leaved Phlox. Fl. July, Sept. Clt.? PJ. 2 or 8 
eet. 
10 P. Sca‘sra (Sweet, fl. gard. t. 248.) stem glabrous at bot- 
tom, and downy at top; leaves oblong-lanceolate, acute, sca- 
brous above, with undulated, denticulately scabrous edges ; 
flowers in loose panicles; calyxes pilose; teeth of calyx subu- 
late, straight; tube of corolla curved, villous; segments of co- 
rolla obovate, spreading, slightly emarginate. 2/. H. Native 
of North America, Phlox Americana. Hortul. Flowers pale 
lilac, fragrant. 
Scabrous Phlox. Fl. Aug. Clt.? Pl. 3 to 4 feet. 
11 P. acumina‘ta (Pursh. fl. amer. sept. 2. p. 730. Sims, 
bot. mag. 1880.) erect, downy; stem angular; leaves ovate- 
Fl. July, Aug. Clt. 1827. Pl. 2 to 
Fl. July, Aug. Clt. 1740. Pl.3 
