1142 LOBELIACEAE 
2. Specularia bifldra (R. & P.) A. Gray. Annual, slender, scabrous. Stems erect 
or assurgent, 1-5 dm. tall, simple or branched, especially at the base, the angles armed 
with more or less retrorse prickle-like hairs: leaf-blades ovate or oblong, or sometimes 
lanceolate above, 0.5-1.5 mm. long, acute or rarely obtuse, entire or crenate-serrate, sessile, 
sparingly pubescent on the margins and principal nerves: flowers 1 or 2 in an axil, or 
rarely more, sessile: calyx of the apelatous flower with 3-4 ovate or nearly subulate 
sepals 1-2 mm. long; the corolliferous flowers with 4—5 longer lanceolate sepals: corolla 
blue, 1.5-2 em. broad : capsules cylindric or fusiform, 6-9 mm. long, more or less ribbed : 
seeds globose-lenticular, nearly 1 mm. in diameter, smooth and shining. 
In fields and open places, Virginia to Oregon, Florida and Mexico, and in northern South America. 
Spring to fall. 
3. Specularia leptocárpa (Nutt.) A. Gray. Annual, spiny-hispid or glabrate. 
Stems erect or nearly so, 2-5 dm. tall, simple or sparingly branched, especially at the base, 
the edges or the angles armed with small prickle-like hairs: leaf-blades sessile, oblong, 
lanceolate or linear-lanceolate, 1-3 cm. long, entire or inconspicuously toothed, acute, the 
nerves rough on both sides: flowers sessile or nearly so: calyx of the apetalous flowers 
with 3—4 linear sepals ; that of the corolliferous with 5 longer sepals: corolla magenta or 
blue, 1.5-2 mm. broad: capsules cylindrie, 1.5-2 mm. long, sessile, slightly curved or 
twisted: seeds oblong-lenticular, a little more than 1 mm. long, shining. 
In dry soil, Missouri to Montana and Texas. Spring to fall. 
4. Specularia Coloradoénsis Buckl. Annual, nearly glabrous. Stems simple and 
erect, or much branched and spreading, 2-10 dm. long, the angles often armed with 
minute spine-like teeth : leaf-blades 1-6 cm. long, armed on the edges and nerves like the 
stem, the lower ones oblong or spatulate, short-petioled, the upper lanceolate or linear- 
lanceolate, sessile, all entire or distinctly toothed, acute: flowers axillary or terminating 
branches, nearly sessile or short-pedicelled: calyx of both kinds of flowers with 5 linear-subu- 
late sepals, but those of the apetalous flowers shorter : corolla blue-purple, 2-2.5 em. broad : 
capsules cylindric-prismatic, 2-2.5 cm. long, nearly sessile or short-stalked, straight or 
nearly so, opening by 2 or 3 valves near the top: seeds globose-lenticular, nearly 1 mm. 
long, shining. 
In dry soil, southern and western Texas. Spring and summer. 
FAMILY 3. LOBELIACEAE Dumort. LOBELIA FAMILY. 
Annual or perennial herbs, or rarely trees, often with a milky sap which 
contains a narcotic-acid poison. Leaves alternate, without stipules : blades sim- 
ple, entire, toothed or pinnately parted. Inflorescence axillary or terminal, 
variously disposed. Flowers perfect, or rarely dioecious, irregular. Calyx of 5 
sepals. Corolla often bilabiate : tube open on one side nearly or quite to the base. 
Androecium of 5 epigynous stamens. Filaments sometimes cohering into a 
tube. Gynoecium a single compound pistil. Ovary 2—5-celled. Styles terminal, 
united. Stigmas fringed. Ovules numerous, sessile, horizontal, anatropous. 
Fruit a 1-several-celled capsule or a berry. Seeds numerous, with a smooth or 
furrowed testa. Endosperm fleshy. Embryo straight in the axis of the endo- 
sperm. 
1. LOBELIA L. 
Aquatic or terrestrial herbs, with leafy or scape-like stems. Leaves sometimes mainly 
basal: blades entire or variously toothed. Flowers perfect, in spikes, racemes or panicles, 
subtended by minute or leaf-like bracts. Hypanthium ribbed, adnate to the ovary. Sepals 
entire or toothed, often glandular. Corolla red, yellow, blue or white: tube straight, 
oblique or incurved, open to the base on one side: limb 2-lipped, upper lip with 2 
spreading or reflexed lobes; lobes of lower lip more or less united. Stamens 5, free : 
filaments monadelphous, at least above. Anthers in a ring around the style, 2 often 
smaller than the rest, all, or 2, bearded at the apex. Ovary inferior, 2-celled : stigmas 
2-lobed or 2-cleft. Capsule surmounted by the calyx, loculicidally 2-valved. LOBELIA. 
Corolla red. inali: 
a es af = nme i oblong or elliptic type, E —€— 1. L. cardinalis. 
eso eu r leaves of a linear or narrowly linear-lanceolate type, gian- dens 
use dehticaiubr y T 2. L. sp! 4 
Corolla blue or white, or variegated with blue and white. 
Corolla, exclusive of the lower lip, over 1 em. long. 
Stems leafy to the inflorescence. 
