POLEMONIACEAE 979 
17. Phlox ovata L. Perennial, glabrous. Stems erect or decumbent, 2-6 dm. tall: 
leaves opposite; blades elliptic, oblong or lanceolate, 3-10 cm. long, acute or acuminate, 
the lower narrowed into petioles, the upper sessile, often partly clasping : calyx glabrous ; 
lobes triangular or triangular-lanceolate, much shorter than the tube: corolla bright 
purple ; tube 1-2 cm. long ; limb 2-2.5 cm. broad ; lobes rounded or retuse : capsules about 
4 mm. long. 
In open woods, Pennsylvania to North Carolina, Tennessee and Alabama. Spring and summer. 
18. Phlox glabérrima L. Perennial, glabrous or nearly so. Stems erect or ascend- 
ing, sometimes tufted, 3-8 dm. tall, rarely pubescent with spreading hairs : leaves opposite ; 
blades oblong, lanceolate or linear, 2.5-10 cm. long, acute or acuminate, sessile : calyx 8-10 
mm. long ; lobes triangular or triangular-lanceolate, very acute: corolla purple or pink 
purple, or rarely white ; tube 2-3 cm. long ; limb 2-2.5 cm. broad ; lobes rounded or trun- 
cate, sometimes undulate : capsules 4-4.5 mm. long. 
In open woods, Wisconsin to Virginia, Florida and Alabama. Spring and summer. 
19. Phlox maculata L. Perennial, glabrous or nearly so below. Stems erect, often 
clustered, 3-10 dm. tall: leaves opposite, remote ; blades oblong-lanceolate, lanceolate or 
linear, 5-12 cm. long, acuminate, becoming parchment-like in texture, sessile or nearly 
$0: panicles cylindric, 1-4 dm. long, often glandular-pubescent: calyx mostly deep green; 
lobes lanceolate or triangular-lanceolate, about 3 as long as the tube : corolla pink-purple ; 
tube 1.5-2 cm. long ; limb 2-2.5 cm. broad ; lobes orbicular-obovate or broadly cuneate : 
capsules oblong, 4 mm. long. 
In low grounds, New Jersey to Minnesota, Florida and Tennessee. Summer. SWEET WILLIAM. 
20. Phlox acuminata Pursh. Perennial, glabrate. Stems erect or ascending, 6-10 
dm. tall, sparingly branched above, angled or narrowly winged by the decurrent petioles : 
leaves opposite ; blades linear-elliptic or oblong-lanceolate, 5-16 cm. long, acuminate, undu- 
late, short-petioled : panicles often large and broad : calyx glabrous or very minutely pubes- 
cent ; lobes bristle-like, as long as the tube or nearly so : corolla purple or pink purple ; tube 
2-2.5 em. long, 1.5 mm. thick ; limb 1.5 cm. broad ; lobes cuneate : capsules 5 mm. long. 
In mountain woods, North Carolina and Alabama. Summer. 
21. Phlox paniculata L. Perennial, minutely pubescent or glabrate. Stems 6-12 
dm. tall, branched above: leaves opposite; blades elliptic, elliptic-lanceolate or narrowly 
oblong-elliptic, 8-20 cm. long, acuminate, undulate, narrowed into margined petioles or 
nearly sessile: panicles corymbose-pyramidal: calyx granular or sparingly pubescent ; 
lobes subulate, shorter than the tube: corolla pink-purple or white ; tube about 2 cm. long, 
1.5-2 mm. thick ; limb 15-17 mm. broad ; lobes obovate or cuneate-obovate : capsules oval, 
4-5 mm. long. 
In open woods, Pennsylvania to Illinois, Florida and Louisiana. Summer. SWEET WILLIAM. 
22. Phlox amplifólia Britton. Perennial, pubescent. Stems 5-13 dm. tall, villous, 
or glandular-villous, at least above: leaves opposite ; blades ovate, oval, elliptic or lanceo- 
late on the upper part of the stem, thin, mostly 5-15 cm. long, acuminate, narrowed into 
broad bases or winged petioles, scabrous above: inflorescence similar to that of the next 
preceding species : ai glandular-villous : corolla about 2 cm. long; tube glabrous: 
capsules 4-4.5 mm. long. 
In woods, and thickets, Kentucky to Missouri and Tennessee. Summer. 
2. GÍLIA R. & P. 
Annual or perennial sometimes shrubby herbs, with diffuse or erect and elongated 
stems. Leaves alternate or opposite: blades entire, narrowly cleft or dissected. Flowers 
solitary in the axils, variously disposed. Calyx pedicelled : tube campanulate to tubular : 
lobes 5, often shorter than the tube. Corolla white or highly colored : tube short or elon- 
gated : lobes 5, erect or spreading. Stamens 5, sometimes exserted : filaments evenly or 
irregularly adnate to the corolla-tube. Ovules solitary or several in each cavity. Capsule 
mainly included in the calyx whose tube it ruptures at maturity. Seeds often mucilagi- 
nous, those of some species emitting spiral threads. The plants flower in the summer, or 
southward in the spring and summer. 
Corolla rotate. ien 
Annual: leaf-blades incised-toothed : corolla less than 15 mm. broad. 1. G. incisa. 
Perennial : leaf-blades parted : corolla over 20 mm. broad. 2. G. rigidula. 
Corolla funnelform, rather narrowly so. 3. G. rubra. 
1. Gilia incisa Benth. Annual, puberulent. Stems 1-4 dm. tall, sparingly branched 
or sometimes diffusely so: leaves alternate; blades various, incised-toothed : calyx 3-5 
