SCROPHULARIACEAE (FIGWORT FAMILY) 2OI 



aa. Leaves not entire, serrate or crenately dentate to pinnately divided; 



corolla 12-40 mm. long; seeds several or many. 



b. Stem without black lines near the top; leaves pinnately veined, either 

 some of them pinnately lobed or else the upper lip of the corolla long and 

 elephant-trunk-like; corolla white or red or purple or yellow. 



PEDICULARIS (p. 208) 



bb. Stem with fine black lines near the top; leaves merely crenate-dentate; 



upper lip of the corolla not elephant-trunk-like; corolla yellow. W. C. E. 



(Gk. rhin = a snout, anthos = a flower; referring to the compressed corolla 



wings.) Rhinanthus crusgalli (YELLOW RATTLE) 



AA. Shrubs. 



c. Plant with young parts glutinous, 6-18 dm. high; leaves 2.5-10 cm. long, 

 pubescent beneath with branched hairs. U. (Gk. dis = 2, plakos = a pla- 

 centa; the splitting of the capsule shows 2 conspicuous placentae.) 



Diplacus glutinosus 



cc. Plant not glutinous, 1-6 dm. high; leaves 0.6-5 cm. long, not pubescent be- 

 neath with branched hairs. PENTSTEMON (p. 202) 



VERBASCUM (MULLEIN) 



Flowers rather large. Stamens unequal. Seeds rugose, not winged. 

 (L. barbascum = bearded ; on account of its hairiness.) 



A. Plant densely woolly; stem leaves strongly decurrent; flowers in a dense terminal 

 spike; filaments of 3 upper stamens hairy, those of 2 lower ones glabrous. W. E. 

 Medicinal plant. V. thapsus (COMMON MULLEIN) 



AA. Plant nearly glabrous; leaves not decurrent; flowers in a loose terminal raceme; 

 filaments of all 5 stamens hairy. E. V. blattaria (MOTH MULLEIN) 



LINARIA (TOADFLAX) 



Leaves alternate or opposite or whorled, linear or linear-oblong. Flowers 

 in racemes or spikes, yellow or blue. Upper lip of corolla 2-lobed; lower 

 3-lobed. Fifth stamen represented by a gland on the inside of the corolla. 

 (L. linum = flax, which some species resemble.) 



A. Perennial, pale green; flower yellow, 25-32 mm. long; seed winged. W. E. 



L. vulgaris (BUTTER AND EGGS) 



AA. Annual or biennial, green, not pale; flower blue, 6-8 mm. long; seed wingless. 

 W. E. L. canadensis 



ANTIRRHINUM (SNAPDRAGON) 



Leaves alternate or opposite. Upper lip of corolla 2-lobed ; lower 3-lobed ; 

 throat nearly closed. Stamens 4, 2 shorter, the 5th represented by a 

 gland inside the corolla tube. Seed oblong, not winged. Cultivated or 

 escaped or accidentally introduced. (Gk. anti = like, rhin = a snout ; re- 

 ferring to the form of the corolla.) 



A. Annual; corolla 6-16 mm. long. 



B. Calyx segments 10-14 mm. long, linear; corolla purple, 10-15 mm. long. W. 



A. orontium 



BB. Calyx segments 2-4 mm. long, subulate; corolla dull purple, 8-16 mm. long. 

 U. C. A. leptopetalum 



