BORAGE FAMILY 199 



I, ClLIATAE. 

 Lower siirface of the leaves decidedly pubescent. 1. M. subpubescens. 



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

 Calyx-lobes oblong. l..''>-2 mm. long. 



Stem-leaves, at least the upper ones, narrowly lanceolate; plant very pale; pedi- 

 cels usually strigillose. 2. M. pallida. 

 Stem-leaves all ovate or broadly lanceolate: pedicels usually pustulate-muricate 



3. M. ciliata. 

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



II. LONGIFLORAE. 



Plant with a tuberous-thickened root and mostly a single stem. 



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



Leaves glabrous at least beneath. 



Calyx-lobes lineeir-lanceolate, long-ciUate; pedicels strigose; leaves linear-oblong 



to oblong-lanceolate. 6. M. oblongifolia. 



Calyx-lobes short-ciUate; pedicels glabrous or murlculate; leaves broader. 



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



above. 7. M. longiflora. 



CoroUa-tube almost three times as long as the limb and throat; leaves merely 

 papillose above. 8. M. pulchella. 



Plant not tuberous-rooted, more or less cespitose. 



Floral leaves oblong. 9. M. nutans. 



Floral leaves ovate. 



Pedicels scabrous-muricate; corolla-tube about three times as long as the Umb 



and throat. 10. M. tubiflora. 



Pedicels glabrous or minutely pustulate; corolla-tube about twice as long as the 

 Umb and throat. 11. M. foliosa. 



III. Paniculatae. 



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

 Corolla about 1 cm. long ; stem sparingly pubescent. 



Calyx-lobes lance-linear to lanceolate, acuminate. 13. M. paniculata. 



Calyx-lobes oblong-lanceolate, acutish. 14. M. toyabensis. 



IV. Membranaceae. 

 Pedicels hairy. 



Corolla 1 cm. or less long. 



Fruiting pedicels strongly reflexed. 15. M. refracta. 



Fruiting pedicels ascending or nodding. 



Corolla-tube over 4 mm. wide; calyx bristly-ciUate. 16. M. cynoglossoides. 



CoroUa-tube 2-3 mm. wide. 



Calyx strigose; stem-leaves ovate. 17. M. membranacea. 



Calyx only ciUate on the margins; leaves oblong-lanceolate or only the 

 uppermost ovate. 

 Hairs of the pedicels not with pustulate bases. 



Plant stout; pedicels bristly-hispid with spreading hairs. 



18. M. muriculata. 

 Plant slender; pedicels strigose. 32. M. viridis. 



Hairs of the pedicels very short, and with pustialate bases. 



35. M. coronata. 

 Corolla about 1.5 cm. long. 19. M. praiensis.- 



Pedicels muricate-scabrous or smooth. 



Calyx-lobes not longer than the fruit; leaves broadly ovate. 20. M. brachycalyz. 

 Calyx much exceeding the fruit; leaves oblong or lanceolate, or ovate in no. 23. 

 Calyx-lobes shorter than the calyx-tube, bristly ciUate. 21. M. arizonica. 

 Calyx-lobes longer than the calyx-tube. 



CoroUa about 15 mm. long; pedicels smooth or sparingly caUous-pustulate. 

 CoroUa-tube not shorter than the Umb and throat. 



Upper leaves at least three times as long as wide. 22. M. intermedia 

 Upper leaves not more than twice as long as wide. 23. M. praecox. 

 CoroUa-tube shorter than the Umb and throat. 24. M. Leonardi. 



CoroUa 10 mm. long; pedicels with smaU hispldulous hairs with pustulate 

 bases. 35. M. coronata. 



V. Lanceolatae. 

 Pedicels decidedly strigose or hirsute. 



Stem from a fusiform root; leaves glabrous beneath. 25. M. fusiformis. 



Stem from a more or less woody caudex or rootstock. 



Leaves pubescent on both sides ; calyx usuaUy densely pubescent aU over. 

 Leaves Unear or only the uppermost lanceolate. 26. M. lateriflora 



Blades of the lower leaves ovate or spatulate. 



Plant more or less grayish and densely strigose throughout. 



27. M. Bakeri. 

 Plant green. 



Pubescence short, on the stem sparse. 



Calyx conspicuously pubescent. 28. M. nivalis. 



Calyx glabrous except the ciUate margins. 29. M. media. 

 Pubescence longer and loose. 



Calyx less than half as long as the coroUa-tube. 



30. A/. myosotifoHa 

 Calyx fuUy half as long as the corolla-tube. 31. M. amoena. 

 Leaves glabrous beneath; calyx usually glabrous, except the ciUate margins and 

 sometimes the midrib. 



