BORAGE FAMILY 199 



I. CiLIATAE. 



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



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

 Calv.x-lobes oblong. l.."-2 mm. long. 



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

 cels usuallv strigillose. 2. M. pallida. 

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



3. A/, ciliata. 

 Caly.x-lobes linear, 3 mm. long, ciUate. 4. M. platensis. 



II. LONGIFLORAE. 



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



Leaves densel.v pubescent on both sides. 5. M. eplicata. 



Leaves glabrous at least beneath. 



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



to oblong-lanceolate. 6. M. oblongifolia. 



Calyx-lobes short -ciliate ; pedicels glabrous or muriculate; leaves broader. 



Corolla-tube twice as long as the hmb and tliroat; leaves setulous-scabrous 



above. 7. M. longi flora. 



Corolla-tube almost three times as long as the Umb 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 limb 



and throat. 10. M. tubiflora. 



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

 hmb and tlu-oat. 11. M. foliosa 



III. Panicul,\tae. 

 Corolla about 1.5 cm. long: stem densely pubescent. 12. M. pilosa. 



Corolla aboxit 1 cm. long; stem sparingly pubescent. 



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



Calyx-lobes oblong-lanceolate, acutish. 14. A/, toyabensis. 



IV. Membranaceae. 

 Pedicels hairy. 



Corolla 1 cm. or less long. 



Fruiting pedicels strongly reflexed. 15. A/, refracia. 



Fruiting pedicels ascending or nodding. 



Corolla-tube over 4 mm. wide; calj^x bristly-ciliate. 16. A/, cynoglossoides. 



Corolla-tube 2-3 mm. wide. 



Caly^x strigose; stem-leaves ovate. 17. M. membranacea 



Caly"x only ciUate on the margins; leaves oblong-lanceolate or only the 

 uppermost ovate. 

 Hairs of the pedicels not with pustulate bases. 



Plant stout; pedicels bristl.v-liispid with spreading hairs. 



18. M. muriculata. 

 Plant slender; pedicels strigose. 32. A/, viridis. 



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



35. M. coronata. 

 Corolla about 1.5 cm. long. 19. M. pratensis. 



Pedicels muricate-scabrous or smooth. 



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

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

 Calyx-lobes shorter than the calyx-tube, bristly ciliate. 21. A/, arizonica. 

 Calyx-lobes longer than the calj'x-tube. 



Corolla about 15 mm. long; pedicels smooth or sparingly callous-pustulate. 

 Corolla-tube not shorter than the limb and throat. 



Upper leaves at least three times as long as wide. 22. A/, intermedia 

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

 Corolla-tube shorter than the hmb and throat. 24. M. Leonardi. 



Corolla 10 mm. long: pedicels with small hispidulous hairs with pustulate 

 bases. 35. M. coronata 



V. L.lXCEOL.\TAE. 



Pedicels decidedly strigose or hirsute. 



Stem from a fusiform root; leaves glabrous beneath. 25. A/, fusiformis. 



Stem from a more or less woody- caudex or rootstock. 



Leaves pubescent on both sides; calyx usually densely pubescent all over. 

 Leaves linear or only the uppermost lanceolate. 26. A/, lateriflora 



Blades of the lower leaves ovate or spatulate. 



Plant more or less grayish and denselv 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. A/, media 

 Pubescence longer and loose. 



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



30. A/, myosotifolia 

 Calyx fully half as long as the corolla-tube. 31. A/, amoena. 

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

 sometimes the midrib. 



