s 



730 BORAGINACEAE 



elongate, not leaf y-bracted ; sepals linear-lanceolate; corolla about 8 mm. long. 

 A. parviflora Macbr., in part, not Bernh., nor Heller. Dry places: Ida. — Wash. 

 Nev. Son, Ap-My. 



7. A. tessellata A. Gray. Stem branched, 3-8 dm. high, sparingly hispid; 

 basal leaves oblanceolate, 8-15 cm. long, strongly but rather sparingly hirsute; 

 stem-leaves lanceolate, often somewhat clasping; calyx-lobes broadly lanceolate, 

 5-6 mm. long, in fruit often 1 cm. long; corolla orange, about 1 cm. long. Dry 

 and waste places: Wash. — Ida. — Utah — Calif. Son. — Submont. My-Jl. 



14. MERTENSIA Roth. Lungwort, Bluebells, Languid Lady. 



Perennial caulescent herbs. Leaves alternate, entire. _ Flowers perfect, 

 regular, in racemes or panicles. Calyx deeply 5-cleft, persistent, essentially 

 unchanged in age. Corolla tubular-funnelform or trumpet-shaped, blue or 

 purple, rarely white; throat rarely appendaged; lobes 5, imbricate. ^ Stamens 

 included or barely exserted; filaments often flattened. Nutlets obUquely at- 

 tached by a small scar near the base to the convex receptacle, wrinkled at 

 maturity. Style filiform; stigma entire. 



Filaments equalling or exceeding, and usually broader than the anthers. 

 Calyx-lobes longer than the short tube, rarely slightly shorter. 

 Calyx-lobes linear or oblong, obtuse. 



Stem 3-10 dm. high. I. Cn-IATAE. 



Stem 2-3 dm. high. VIII. Incongruentes. 



Calyx-lobes triangular-lanceolate to linear-lanceolate, acute. 



Tube of the corolla at least twice as long as the throat and limb. 



II. LON'GTFLORAE. 



Tube of the corolla only slightly if at all longer than the throat and Umb. 

 Plant tall, usually more than 4 dm. high; leaves distinctly vemed, m most 



feather-veined, but in a few triple-veined with anastomosmg vems. 

 Stem, calyx-tube and lower surface of the leaves long-hairy. 



III. PAXICULATAE. 



Stem glabrous; calyx strigose or merely ciliate on the margins. ' 



IV. Membhanaceal., 



Plant low, usually less than 4 dm. high; leaves with a strong midrib, with- 

 out distinct lateral veins (except sometimes the basal leaves, wmcn 

 then however are thick and firm). V. Lanceol.vt At. . 



Calyx-lobes rounded-ovate, much shorter than the ample, campanulate tune. 



VI. Brachylobae. 



Anthers subsessUe or on very short narrow filaments inserted in the tube or the throat 

 of the corolla; low plants, 1-3 dm. high, of the habit of the Lanceol.\tae group. 



Vll. ALPIXAE. 



I. ClUU-TAE. 



Lower surface of the leaves decidedly pubescent. !• ^^' subpubescens. 



Lower surface of the leaves glabroias, except the ciliate margins. 



Calyx-lobes oblong, l.r>-2 mm. long. , . j^f^rU^ 



Stem-leaves, at least the upper ones, narrowly lanceolate; plant very paie, p 



eels usually strigillose. 2. M. P^'i_^"^ ,Mnftt(^ 



Stem-leaves all ovate or broadly lanceolate; pedicels usually pustulate-murK.aL«. 



3. M- aliata. ^ 

 Calyx-lobes linear, 3 mm. long, ciliate. 4. M. platensis. 



II. LONGIFIXJRAE, 



Plant with a tuberous- thickened root and mostly a single stem, j- in 



Leaves densely pubescent on both sides. 5. M. epncaia. 



Leaves glabrous at least beneath. ,. /^H^nn^ 



Calyx-lobes Unear-lanceolate, iong-ciUate; pedicels strigose; leaves hnear-or>iu"B 



to oblong-lanceolate. 6. M. oblomifoUa- 



Calyx-lobes short-ciliate; pedicels glabrous op muriculate; leaves *>^*^^^*^^' ^^h-ons 

 Corolla-tube twice as long as the Umb and throat; leaves setulous-scaon^ 



above. ^ 7. M. long^A^ra. 



Corolla-tube almost three times as long as the limb and throat; leaves meic y 

 papiUose above. 8. M. pulchella. 



Plant not tuberous-rooted, more or less cespitose. , 



Floral leaves oblong. 9. M. nutans. 



Floral leaves ovate. .^^ • ]{xa\} 



Pedicels scabrous-muricate ; corolla-tube about tiu-ee times as long ^?^^^"r 



and throat. 10.. Ai. ^"('^■^^^^- the 



Pedicels glabrous or minutely pxistulate: corolla-tube about twice as long 

 limb and throat. U. M. fohosa. 



III. PANICX'LATAE. 



CoroUa about 1.5 cm. long; stem densely pubescent. 12. M. pilosa. 



CoroUa about 1 cm. long; stem sparingly pubescent. , _ ■^.nnia 



Calyx-lobes lance-linear to lanceolate, acinmnate. 13. M. P^^V^J;^-^' 



Calj-x-lobes oblong- lanceolate, acutish. 14. M. toyaOensi^- 



