922 SPIGELIACEAE 
ovate, 1.5-9 em. long, entire, dark green, acute, or acuminate, short-petioled : flowers on 
short scaly pedicels: calyx-lobes ovate or ovate-lanceolate, 3-4 mm. long, acutish or ob- 
tuse : corolla deep yellow: capsules elliptic, oblong or ovoid, 1-1.5 cm. long, marked with 
a conspicuous suture on each flat side, veiny : seeds obliquely-oblong, 5-6 mm. long, 
strongly papillose, each prolonged into a hyaline wing 5 mm. long with a toothed end. 
In sandy soil, Virginia to Florida and Texas. Also in Mexico and Central America. Spring. 
2. COELOSTYLIS T. & G. 
Caulescent herbs. Leaves opposite: blades entire. Flowers in the forks of leafy 
branches, or axillary to leaves. Calyx-lobes narrow. Corolla white or whitish, salver- 
form : limb plaited in the bud, the edges turned outward. Stamens 5, included, adnate to 
the corolla tube. Ovary 2-celled: styles permanently united, included, jointed near the 
middle. Fruit didymous. 
Corollas 12-14 mm. long: species of Florida. 
Corollas 8-10 mm. long: species Texano-Mexican. 
Seabrous: capsules lineolate: calyx-lobes with erose-denticulate margins. 
Smooth: capsules smooth: calyx-lobes with scabrous margins. 
1. Coelostylis loganioides T. & G. Annual or perennial, glabrous, dull green. 
Stems ascending, 1-3 dm. tall, sometimes branched at the base, rather wiry : leaf-blades 
leathery, oval, elliptic or lanceolate, 1.5-3.5 em. long, obtuse or acute, conspicuously 
nerved : flowers white, solitary in the axils of the leaves or three in terminal clusters: 
calyx-lobes narrowly linear, long-pointed, the margins scarious and denticulate : corolla 
narrowly funnelform, 1 em. long; lobes lanceolate or acutish, about 4 as long as the tube. 
In sandy soil, eastern Florida. 
2. Coelostylis Lindheimeri (A. Gray) Small. Annual, low, tufted, puberulent, pale 
green. Stems diffusely branched from the base, somewhat scabrous, the branches 1-2 dm. 
long, branched throughout: leaf-blades lanceolate or oblanceolate, or those of the branches 
often oblong-spatulate, 1-3 cm. long, obtuse or acute, even slightly apiculate, slightly 
revolute, ciliolate, more or less narrowed at the base, the lower short-petioled : flowers 
terminal and axillary : calyx slender; lobes linear, 4 mm. long, scarious-margined and 
erose-denticulate, persistent and at length twisted : corolla funnelform, 1 cm. long; lobes 
ovate, 2-5 mm. long, obtuse: capsule 2-lobed, 4 mm. high, 5 mm. broad, longitudinally 
marked with distinct lines : seeds dark brown or black, 2 mm. in diameter, tuberculate and 
pitted. — [ Spigeha Lindheimeri A. Gray. ] 
On dry prairies, western and southern Texas to New Mexico, and northern Mexico. 
. 3. Coelostylis Texàna T. & G. Annual, glabrous, slender, dark green. Stems 
simple or sparingly branched from the base, 3-4 dm. tall, branched above: leaf-blades lan- 
ceolate, ovate-lanceolate or elliptic, 3-5 cm. long, thinnish, acute, ciliolate, narrowed at 
the base, sessile or very short-petioled : stipules triangular: flowers terminal or axillary on 
the upper branches : calyx-lobes linear-subulate, 3 mm. long, the margin scabrous : corolla 
8 mm. long, funnelform ; lobes narrowly ovate, acutish, more than twice shorter than us 
tube: capsule 5 mm. broad, 3 mm. high, smooth and glabrous, somewhat 9-lobed : seeds 
dark brown, 1 mm. in diameter, minutely rugose and punctate. 
In dry soil, eastern Texas. 
5 
C. loganioides. 
bo 
. C. Lindheimeri. 
. C. Texana. 
eo 
3. SPIGELIA L. 
Annual or perennial herbs, rarely somewhat shrubby. Stems often branched, mainly 
from the base. Leaves opposite, subtended by small inconspicuous caducous stipules : 
blades entire. Flowers often showy, in terminal spikes or spike-like racemes. Calyx 
slender: tube often bearing 5 or more glands within at the base: lobes narrow. Corolla 
tubular or funnelform : lobes 5, their edges barely turned outward. Stamens 5, often vith 
exserted anthers, adnate to the corolla-tube. Ovary 2-celled : style jointed near the base. 
Ovules numerous in each cavity, densely attached to peltate placentae. Fruit 2-celled, 
borne on a cup-shaped base. 
Annual: inflorescence subtended by a whorl of bracts larger than the leaves. 1. S. anthelmia. 
Perennial : inflorescence not subtended by a whorl of bracts. Marylandica. 
Corolla scarlet without, 4-5 em. long: anthers and style exserted. 4 2. S. tianoides. 
Corolla white or purplish without, 1.5-2.5 em. long: anthers and style included. 3. pies 
1. Spigelia anthélmia L. Annual, deep green. Stem 1-4 dm. tall, often branched: 
leaf-blades lanceolate, 3-12 cm. long, finely ciliolate, acute or slightly acuminate, P 
