524 SCROPHULARIACEZ ILYSANTHES 
LIMOSELLA 
Corolla irregular, the tube somewhat expanded above, the limb 
bilabiate: upper lip 2-cleft; the lower larger and 3-lobed, spread- 
ing. Fertile stamens 2, included, their anther-cells divergent: 
sterile filaments 2, two-lobed, one of the lobes capitate-glandular, 
the other glabrous and shorter. Capsule oblong or ovoid, septi- 
cidally dehiscent. Seeds numerous, wrinkled. " 
I. gratioloides Benth. DC. Prodr. x, 419. Stem slender usually erect 
at length diffusely branched, 3-8 inches high: leaves ovate, ovate-oblong 
or the lowest obovate, sessile or slightly clasping at base, remotely dentic- 
ulate or entire, thickish, 3-7-nerved, 6-12 lines long; the uppermost ones 
commonly much smaller: peduncles slender, 2-3 times as long as the sub- 
tending leaves: sepals linear-lanceolate, about 2 lines long, acute: corolla 
violet to purple, about 3 lines long: capsule narrowly ovoid-oblong, 2-3 lines 
long, longer tban the calyx: seeds a line long, reddish, usually truncate at 
the ends. In wet or muddy places, California to Brit. Columbia and 
across the Continent. 
15 LIMOSELLA.L. Sp. 631. (1753.) 
Low stemless glabrous succulent annual (or perennial by sto- 
lons) herbs with rosulate leaves and small flowers on scape-like 
one-flowered peduncles. Calyx campanulate, 5-lobed.. Corolla 
nearly regular, open-campanulate, with a short, tube and 5-cleft 
limb. Stamens 4, inserted on the tube. of the corolla,’ scarcely 
exserted : filaments short; anthers confluently one-celled. Style 
short: stigma capitate. Ovary two-celled at the base, one-celled 
above. Capsule two-celled only at the base; the large central 
placenta many-seeded. Seeds ovoid, rugulose. 
__ Ie aquatica L. Sp. 631. Stoloniferous stems slender, 1-3 inches long: 
leaves lanceolate to oblong or spatulate, the blade 4-6 lines long, on fili- 
form petioles 3-4 times as long: peduncles shorter than the leaves, arising 
with the petioles from the base of the plant, or from nodes of the stolons: 
calyx-lobes ovate, acute or acutish, about the length of the tube: corolla 
white or,pink, about a line broad, scarcely longer than the calyx: stamens 
high up on the corolla-tube: filaments slightly longer than the. anthers: 
capsulefglobose or oblong-globose, obtuse, 144 lines high, longer than the 
calyx. On muddy banks and in brooks, Washington to California and 
across,the Continent: Europe, Asia and 8. America. P 
SERIES 11 RHINANTHTDEH Benth. in DC. Prodr. x, 189. Leaves 
various. Inflorescence simply centripetal. Lower lip or lateral 
lobes of the corolla external in the bud. Stamens very rarely 
more than four. 
Tribe’5 Digitalex Benth. l. ¢: Herbs or shrubs, none parasitic. 
Corolla little if at all bilabiate; the lobes all plain: the lateral or one 
of them external in the bud. Anther-cells contiguous at the apex, 
and often confluent. bal 
16 SYNTHYRIS Benth. in DC. Prodr. x, 545. 
Perennial herbs} with simple stems, mainly radical leaves and 
rather small purple blue or pink flowers in terminal spikes or 
racemes. ‘Calyx 4-parted: the segments oblong. Corolla from 
oblong to short campanulate, 4-cleft, more or less irregular, rare 
