1194 RHINANTHACEAE 
shorter than the bracts: d ER 1 mm. long: corolla (of emersed flowers) 6-8 mm 
long: capsule 2 mm. long, 3 m vide: seeds 1-1.2 mm. lo ng, those of the basal 
pee smaller. —Aqu uatic in si low depressions in Sd rocks, Piedmont, Ga. 
—Spr.—Th ds of this plant apparently lie dormant during dry seasons, 
and meee in years of heavy winter precipitation. It is accordingly to be 
found only at long or irregular intervals. 
13. ILYSANTHES Raf. Erect, diffuse or creeping herbs, usually much- 
branched, with biennial or annual roots. Leaves opposite: blades toothed to 
entire, glandular-punctate, sessile or somewhat petioled. Flowers axillary to 
leaf-like bracts. Bractlets none. Sepals 5, distinct or united, linear, slightly 
unequal in length. Corolla blue-violet or paler, zygomorphic: lobes shorter than 
the tube, the two posterior arched and united over half their length, the three 
anterior projecting and with two conspicuous yellow pubescent ridges formed 
by the adnate proximal portions of the anterior filaments. Filaments four, 
didynamous, the two posterior shorter, anther-bearing; the two anterior pro- 
jecting distally as two short yellow pubescent processes, at or near the apex of 
which a reflexed glabrous upeurving prolongation may be evident. Stigmas 
plate-like. Capsule narrowly ellipsoid to ovoid, somewhat oblique by the 
greater development of the anterior carpel and with the callose white style- 
base attached posteriorly; glabrous, septicidal throughout. Seeds numerous, 
yellowish, nearly ellipsoid, prismatic- angled or winged, with fine transverse lines. 
—About 70 species, widely distributed, especially in warm regions.—FaALSE- 
PIMPERNELS. 
Stem prostrate and extensively creeping: leaf- blades orbicular to eed OO 
rounded at base, all closely sessile: seeds winged. I. BAZ 
Stem erect or ascending: leaf-blades more or less elongate, at 
east the lowermost narrowed at e base: seeds not 
winged. II. EUILXSANTHES. 
I. BAZINA 
Matted plant, a a when in flower by the numerous 
mottled corollas 1. I. grandiflora. 
IJUILYSANTHES 
Seeds a ae than wide, truncate: basal leaves small or lack- 
d ng E form a rosette: stem and rcm 
sli Entis 7 m 
Seeds pale-y ripe iode twice or thrice as long aS wide: leaf- 
blades 1-3 em. long, the lower obviously narrowed at base: 
s shor ter or longer than the bracts: later flowers 
cleistog: us. 2. I. dubia. 
Seeds Bn bp mostly less ren twice as long as 
Du leaf- es 0.5—1.5 em. long, nearly all widest pe 
base and tou dd iae ing: edicels much exceeding the 
Dic a throughout the season all open 3. I. inaequalis. 
Seeds as wide long, apiculate: basal leaves usually larger, 
present mo of the season and forming a winter-rosette: 
stem and pedicels prominently ridge-angled. 
Stem 0.3-1 dm. tall, uniformly leafy, the cauline leaves being 
little smaller than the basal: pedicels 7-15 mm. long: cap- 
sule 1-2 mm. long. 4. I. saxicola. 
Stem 1-3 dm. tall, nearly bare above, the upper leaves ee 
reduced to subulate bracts: pedicels 15-50 mm. long: cap- 
sule 3-5 mm, long. 5. I. monticola. 
I. grandiflora (Nutt.) Benth. Stems 0.2—4 dm. long, much-branched, ex- 
tensively creeping: leaf-blades 0.5-1 em. long, orbieular or ovate- orbieular, 
