~~ 
a rae é 
$. Mertensia Roth. Pinevetter—} chintns Settee) 
Perennial herbs with erect leafy stems; leaves alternate. Flowers 
perfect, in terminal cymes or cymose panicles. Calyx deeply S=cleft, 
persistent. Corolla tubular-funnelform or trumpet~shaped, blue or rarely 
white. Stamens included, the filaments usually flattened, inserted in the 
throat of the corolla. WNutlets attached at the base. 
@ Stems 10-20 cm. tall; corolla 15-20 mm, long /. Me oblongifolia 
0 Stems 60-100 cm. tall or more; corolla 10-12 mm. long 2. Me paniculata 
_ sénclaen. ee tS eS 
1. Me oblongifolia (Nutt.) Don. Stems solitary or two or three 
arising from a globose tuber about 1 om. in diameter, 10-20 cm. tall, unbranched 
glabrous; leaves few, the lowermost obovate, 1.5-3 om. long, the upper oval 
or oblong, 2¢5=5 cme long, obtuse or rounded, narrowed at the base, nearly 
glabrous or papillose or more or less glaucous; |.‘ slovs: flowers showy, in 
one or two loose more or less nodding cymes, on slender pedicels 2-4 mm. long; 
calyx-lobes lanceolate, 3-5 mm. long, mostly very acute, glabrous and often 
glaucous, the margins usually ciliolate; corolla deep blue, rarely pure white 
1.5-2 cm. long, tubular, the limb 4 mn. long; asi mamta : 
Fg ee Oe = ee) 
hn ash tan Ee Py ee 
nutlets 2 mm. long, rounded 
and scabrous on the back. 
Frequent on gravelly open slopes. 
4 
2e Me paniculata (Ait.) Don. Stems several or mmerous, erect fr 
a woody crown, 60-100 cm. tall or more, : | 
glabrous or sparingly hispid; leaves mostly ovate, or the uppérmest ovate? =) 
lanceolate or oblong-lanceolate, 6-14 om. long, 2-6 om. broad, gently acuminate, 
rounded at the base and narrowed to a petiole 1-4 cm. long, both surfaces 
entirely glabrous or papillose, or more or less scabrous or hirtellous, 
glaucous or green; flowers in lax terminal panicles, the branches of which 
arise in the uppermost axils, pedicels 2-10 mm. long, 1-2 cm. in fruit, glabrous 
or more commonly hispidulous, slender; calyx-lobes triangularelanceolate, 1.56 =] 
3S mme long in flower, 3-4.5 mm. long in fruit, acute, glabrous and ciliate or : 
more commonly hispidulous; corolla pink, then blue, tubular-funnelform, 9-12 (or 15). 
mme long, the tube approximately subequal to the j 
limb; stamens seated in the throat, fate the filaments j 
tlattenedp subequal to the anthers; mutlets silvery, 3-4 mm. long, rugose and i 
papillose. (M. membranacea Rydb..M. pratensis ta.” a. 
1 
) 
+ 
ee ate hs eae! 
Common and variable throughout our region, in meadows and along streams. 
