Gentianacea—Gentiana. 305 
the preceding species in its broader foliage and inflated corollas 
which are nearly closed at the mouth and destitute of a limb, 
the primary lobes being absent and replaced by the fringed 
and toothed appendages. A native of North America. 
G. septémfida has spotted white and blue flowers; G. 
gélida has campanulate purplish blue flowers; G. pwnctdta has 
them pale yellow with dark spots ; and G. Pnewmondnthe var. 
alba has large white flowers. 
Sabbdtia campéstris is an elegant tender annual from Texas, 
growing about a foot high and bearing clusters of small rose- 
coloured flowers with a yellow centre; S. stellaris and 8. 
chloroides are hardy slender North American annuals with 
rosy purple or white flowers. The corolla in this genus is 
rotate, with from 5 to 12 divisions and an equal number of 
stamens. 
Swértia perénnis is a European perennial with quadrangular 
smooth stems about a foot high, elliptical leaves, and dull violet 
flowers. Corolla rotate, 5-lobed; lobes fringed. 
Orver LXXII—POLEMONIACEA 
Annual or perennial herbs of erect or rarely climbing habit, 
rarely shrubs. Leaves opposite or alternate, simple or com- 
pound. Inflorescence various. Flowers regular, pentamerous. 
Calyx inferior, 5-lobed. Corolla slightly perigynous, campanulate, 
funnel-shaped or salver-shaped. Stamens 5, inserted upon the 
corolla-tube and alternating with its lobes. Fruit a 3-celled 
3-valved few or many-seeded capsule, splitting loculicidally. 
Seeds angular, winged or oval, with spongy testa and fleshy 
or horny albumen. A small order confined to temperate and 
cold regions, especially numerous in North-western America. 
There are 17 genera and upwards of 100 species. 
1. PHLOX. 
Handsome herbs with simple entire opposite and alternate 
leaves and cymose usually bracteate flowers. Calyx deeply 
5-lobed, often prismatic or angled. Corolla salver-shaped with 
a long slender tube and wedge-shaped lobes twisted in bud. 
Cells of the capsule l-seeded. An exclusively North American 
genus, contributing some of the showiest denizens of our gar- 
x . 
