RHINANTHACEAE 1193 
faint bluish-purple lines: capsule long: seeds yellowish. [Gratio 
pilosa Michx. Sophronanthe B ms Small ]|—Pinelands, Coastal Plain 
C pen. Fla. to E Tex. and N. d through northern Ala. and northern 
Ga., reaching the mountain- tame of T Tenn. and W N. C.—Sum.—fal 
11. SOPHRONANTHE Benth. Erect much branched herbs, with peren- 
nial roots, the plant covered nearly throughout with stiff white bristle-like hairs. 
Leaves opposite; blades entire, strongly revolute, pide VPE -punetate, 
sessile. Flowers sessile, axillary to leaf-like brae r : 
very unequal, the outer three longer than the as Eun Com A salver- 
form, slightly personate: tube very narrow, short-pubescent within on all sides; 
lobes shorter than the tube, the posterior 
united to apex. Two postero- hut stamens 
polleniferous, the antero-laterals represented 
rudimentary filaments or lacking. Con- 
nective not dilated. Stigmas lip-like. Cap- 
sule narrowly pyramidal, acuminate, deeply- 
suleate, glabrous, dedic idal. Seeds numer- 
ous, nearly rectagonal, finely lined, wingless. 
—One species. 
1. S. hispida Benth. Stem 0.5-2 dm. tall, 
hispid: leaf-blades 0.8—1.5 em. long, firm, 
j an in- 
rustati bove, D Eod ib be- 
th: sepals 3-6 mm. long, linear RE linear- br = exceeded by the 
actlets: corolla 10-13 mm nis sule 4—5 mm. long: seeds nearly black. 
Horis sutulata Baldw. ]—Dry Md. CAEN Plain, S Fla. to Miss. and 
Ga.—Spr.—fall. 
12. AMPHIANTHUS Torr. Delicate e annual herb, from a caudex . 
sending i several lax stems each buoyed the surface of the water by 
he pair of leaves that aet as floats. T opposite; blades obseurely 
ade -punctate, dimorphic; the basal immersed ones la ys acute, widely 
sessile; the distal floating ones oval, rounded at apex, narrowed to a semi- 
petiolar base. Flowers axillary to both types of leaves, although from the two 
floating leaves there is usually only one, di e terminal, the basal flowers 
and eleistogamie. Bractlets none Be epals 5, slightly united, somewhat 
nequal. 
orolla of e 
or whitish, campanulate, Pos dinde 
lobes shorter than the tube: while not s 
the corollas of the basal flowers pr sbably a 
not open. Stamens 2. Stigmas plate-like. 
Capsule wider than long, flattened contrary 
to septum, of two rounded cavities, loculi- 
eidal to base, even splitting the septum. 
Seeds numerous, M retieulate, wing- 
less.—One species 
silius Torr. Stem filiform, 0.1-0.5 
dm. p branched only E base: leaf-blades 
about 0.5 em. long: pedicels 0.5-2 mm. long, 
