156 Flora of the Patotise Region 



N. attenuata Torrey. Annual, erect and slender, 30-60 cm. high, gland- 

 ular-pubescent, especially above: leaves entire, petioled, the upper lanceo- 

 late or linear, attenuate-acuminate, the lower oblong or ovate, 3-iocm. long: 

 panicle loose, bracteate only below: calyx 6-8 mm. long, the teeth lanceo- 

 late or subulate, subequal, much shorter than the tube: corolla white, tub- 

 ular-sal verform, 2.5-3 cm - long, the limb ascending, 5-lobed, 8-12 mm. broad: 

 capsule as long as the calyx-tube. Sandy soil along Snake River. 



Family 69. SCROPHULARIACEAE. 



Herbs, sometimes shrubs: leaves alternate or opposite, without 

 stipules: flowers perfect, mostly complete and irregular: corolla ir- 

 regular, more or less 2-lipped, the upper lip 2-lobed, the lower 3- 

 lobed: stamens on the corolla-tube, 4 and didynamous or only 2, 

 rarely all 5 present and fertile: style single; stigma entire or 2- 

 lobed, fruit a 2-celled usually many-seeded capsule, with axile 

 placenta: seeds mostly small; endosperm copious. 



Anther-bearing stamens 5: leaves alternate. 263. verbasctm. 



Anther-bearing stamens 2 or 4: leaves alternate, opposite or whorled. 

 Fifth sterile stamen present. 



Sterile stamen a gland or scale adherent to the upper side of the 

 corolla. 

 Peduncles several-flowered. 264. scrophuearia. 



Peduncles 1 -flowered. 



Corolla conspicuously 2-lipped. 266. COELINSIA. 



Corolla obscurely if at all 2-lipped. 267. TONELEA. 

 Sterile stamen elongated, about equalling the others. 



265. PENTSTEMOX. 

 Fifth sterile stamen not present. 



Stamens 4, 2 anther-bearing and 2 sterile. 



Sterile filaments simple and included or none. 



269. CRATIOEA. 

 Sterile filaments unequally 2-forked, exserted. 



270. ILYSANTHES. 

 Stamens 2, anther-bearing. 



Calyx 5-parted. 269. graTiola. 



Calyx 4-parted. 



Leaves alternate. 272. synthyris. 



Leaves, at least the lower, opposite or whorled. 



273. VERONICA. 

 .Stamens 4, all anther-bearing. 



Corolla nearly regular. 271. EIMOSEEEA. 



Corolla 2-lipped. 



Stamens not enclosed in the upper corolla-lip. 



268. MIMUEUS. 

 Stamens enclosed in the upper corolla-lip. 



Anthers equally 2-celled. 276. PEDICUEARIS. 



Anthers unequally 2-celled. 



Upper lip much longer than the lower. 



274. CASTIEEEIA. 

 1'pper lip scarcely longer than the lower. 



275. ORTHOCAK1TS. 



