524 SCROPHULAKIACEJE 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 than 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- eel led only at the base ; the large central 

 placenta many-seeded. Seeds ovoid, rugulose. 



L. 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 

 \vhiteorjpink, about a line broad, scarcely longer than the calyx: stamens 

 high up on the corolla-tube : filaments slightly longer than the anthers : 

 capsule'globose or oblong-globose, obtuse, \% lines high, longer than the 

 calyx. On muddy banks and in brooks, Washington to California and 

 acrossjthe Continent : Europe, Asia and S. America. 



SERIES"III RHINANTHIDE^ 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 Digitalese Benth. L c. 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. 



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 



