RHINANTHACEAE 1187 
3. SCOPARIA L. Erect, much-branched herb, the root perennial. Leaves 
opposite: blades petioled, serrate, glandular-punetate. Flowers axillary to leaf- 
like braet Sepals 4, equal. Corolla white 
rotate, Tu -pubeseent on all sides: lobes 
i longer than the tube, the posterior 
united throughout (so that ies appear to 
be only four). Stamens 4. Stigmas mi- 
nute, mainly united. Capsule ovoid, acute, 
septicidal, and only slightly loculicidal at 
apex. Seeds numerous, cylindric-ellipsoid, 
reticulate,  wingless.—About 20 species, 
tropieal and South Ameriean 
1. S. dulcis L. Stem 3-8 dm. tall, gla- 
nii d. or shghtly D pe. des = 
ng, 
vate to lan eolate, uneately n 
rowed to tie short petiole: poi a 3-9 mm. i Ion ng, slender, one or two to an axil: 
sepals abou un s n ong e. elliptic to elliptic- pias three-n nerved: corolla white, 
4—10 mm. wide; lobe ate: capsule 1.5-2 = mm. long: seeds yellowish-brown. 
[S. gran ee Nash ]— “Gon T-WEED.)—W aste- places and cult. ground, Coastal 
Plain, S Fla. to La. and S Ga.— (W. I., Mex. C. A., S —A]l year. 
4. MACUILLAMIA Raf. Creeping and floating succulent, odorless 
eaves opposite: blades entire, palmately 7-9-veined, obscurely 
gander punctate, narrowed to a clasping base. Flowers axillary to kac like 
acts. Sepals 5, unequal, the posterior one orbicular-oval to oval . the two 
Gea ovate; the two innermost lanceolate, long as the othe Corolla 
white, nearly E campan nulate: lobes slighty shorter than the (be equally 
distinct or the posterior slightly united. Stamens 4. Stigmas peltately flat- 
tened. Capsule globose or ovoid, obtuse, Bes equalling the persistent calyx 
septicidal or also loculicidal. Seeds numerous, cylindric, finely reticulate, d 
less.—About 10 species, natives of tropical and temperate America. 
Pedicels 10-15 1 long, pubescent: corolla 6-8 mm. long: capsule 4-5 mm. long, 
both septicidal aad loculicidal. 1. M. rotundifolia. 
oat 5-7 mm. long, nearly glabrous: corolla 3-4 mm. long: 
e 3 un. long, apparently only loculicidal. 2. M. repens. 
1. M. rotundifolia eee Raf. Stem and branches 2-6 dm. long, D aud 
cent, especially above, forming dense mats in water: leaf-blades 1.5-3.5 c 
lon ng obovate to obovate-orbicular: pedicels 
1 
0-15 mm. long, pan than the bracts 
sepals becoming 4-6 mm. long: corolla na 
ong, with di d seeds 0.5 m 
Du yellowish-bros [.Herpestis jd. 
folia SA Pursh Monniera rotundifolia 
Michx. | —Po: Interior Low Plateaus, 
Tenn., and more western a Tex. to 
Colo., '"N. D., 
M. repens ~ Pennell. Stem and 
a 2—4 dm. long, pubescent, Ee 
above, forming mats in water: oe dus 
1-2 em. long, obovate: pedie EE 5-7 
p nearly glabrous, i acl shorter ihan t ve 
bracts: sepals becoming 3-4 mm. long: 
