342 Scorphulariaceae 
M. Leaves nearly all basal, entire, linear; stem-leaves only 2—4. 
CHELONEAE. (p. 343) 
MM. Not as above in all points. 
N. Calyx deeply cleft at the front or the rear or both. 
RHINANTHEAE (p. 354) 
NN. Calyx about equally notched into 5 teeth or lobes. 
O. Flowers solitary in the leaf axils, either with 4 anther-bearing sta- 
mens and no rudiment of a 5th stamen, or else with 2 anther-bearing 
stamens and 2 rudimentary ones. GRATIOLEAE (p. 349) 
OO. Flowers in terminal or axillary clusters, with 4 anther-bearing 
stamens and the rudiments of a 5th stamen. CHELONEAE (p. 343) 
KK. Calyx 1—4-toothed or -lobed. 
P. Corolla regular or nearly so, rotate to salverform, never yellow; stamens 2. 
DIGITALEAE (p. 352) 
PP. Corolla plainly 2-lipped, tubular, often yellow; stamens 4. 
RHINANTHEAE (p. 354) 
AA. Shrubs. 
Q. Plant with young parts glutinous, 6—I1I8 dm. high; leaves 2.510 cm. long, 
pubescent beneath with branched hairs. GRATIOLEAE (p. 349) 
QQ. Plant not glutinous, |—6°dm. high; leaves 0.6—5 cm. long, not pubescent 
beneath with branched hairs. CHELONEAE (p. 343) 
VERBASCEAE 9(MULLEIN TRIBE) —Herbs, biennial or perennial, 6——30 dm. 
high (ours), erect. Leaves all alternate, pinnately veined, entire to pinnatifid, 10—30 
cm. long (ours). Flowers in racemose or spike-like clusters. Calyx 5-toothed or -lobed. 
Corolla rotate, slightly irregular, not spurred nor saccate at base, white or yellow. Anther- 
bearing stamens 5. Capsule septicidal. Seeds many. 
VERBASCUM MULLEIN 
Leaves pinnatifid or dentate or entire. Flowers rather large. Calyx deeply 5-cleft. 
Corolla 5-lobed. Stamens on base of corolla, unequal; filaments at least of the upper 3 
stamens pilose. Ovary 2-celled. Capsule globose to oblong; 2-valved; valves usually 
2-cleft at apex. Seeds rugose, not winged. (L. barbascum—bearded; on account of | 
its hairness. ) 
A. Plant densely woolly; stem-leaves strongly decurrent; flowers in a dense terminal 
spike; filaments of 3 upper stamens hairy, those of two lower ones glabrous. W. E. 
V. thaspus L. (Common Mullein) 
AA. Plant nearly glabrous; leaves not decurrent; flowers in a loose terminal raceme; 
filaments of all 5 stamens hairy. E. 
V. blattaria L. (Moth Mullein ) 
ANTIRRHINEAE  (SNaApP-pDRAGON TRIBE)—Herbs, annual or biennial or 
perennial, erect to vines. Leaves alternate or rarely opposite, pinnately veined and entire 
or palmately veined and lobed. Flowers in racemes or spike-like clusters or solitary in the — 
leaf-axils. Calyx 5-toothed or -lobed. Corolla somewhat tubular, 2-lipped, spurred or 
saccate at base in front, variously volored. Anther-bearing stamens 4, the 5th antherless 
or gone entirely. Capsule opening by pores. Seeds many. 
A. Plant a vine; leaves palmately veined, lobed. CYMBALARIA (p. 343) 
AA. Plant erect or spreading, not a vine; leaves pinnately veined, entire. 
B. Leaves sessile; corolla spurred at base. Linaria (p. 343) 

