. Rocky Mountain flowers : an illustrated guide for plant-lovers and plant-users. 5, fig. 4; pi. 6, fig. 28-29. Sepals 4, petals 4. yellow, orange or purple, pod linear, 4-sided, seeds PLATE 6 .MUSTARD FAMILY 1. Lepidium Fremontii 23-25. 2. Lepidium virginicum 26. 3. Bursa bursa-pastoris 27. 4. Hutchinsia procumbens 28. 5. Thlaspi arvense 29. 6. Thlaspi alpestre 30. 7. Alyssum calycinum 31. 8. Camelina sativa 32. 9. Lesquerella argentea 33. 10. Lesquerella montana 34. 11. Subularia aquatica 35. 12-13. Roripa palustris 36. 14. Roripa curvisiliqua 37. 15-16. Physaria didymocarpa 38. 17. Dithyrea
. Rocky Mountain flowers : an illustrated guide for plant-lovers and plant-users. 5, fig. 4; pi. 6, fig. 28-29. Sepals 4, petals 4. yellow, orange or purple, pod linear, 4-sided, seeds PLATE 6 .MUSTARD FAMILY 1. Lepidium Fremontii 23-25. 2. Lepidium virginicum 26. 3. Bursa bursa-pastoris 27. 4. Hutchinsia procumbens 28. 5. Thlaspi arvense 29. 6. Thlaspi alpestre 30. 7. Alyssum calycinum 31. 8. Camelina sativa 32. 9. Lesquerella argentea 33. 10. Lesquerella montana 34. 11. Subularia aquatica 35. 12-13. Roripa palustris 36. 14. Roripa curvisiliqua 37. 15-16. Physaria didymocarpa 38. 17. Dithyrea Wislizeni 39. 18. Draba oligosperma 40. 19. Draba caroliniana 41. 20. Draba aurea 42. 21-22. Smelowskia calycina 43. Sisymbrium incisumSisymbrium linifoliumConringia orientalisErysimum asperumErysimum cheiranthoidesBarbarea vulgarisThelypodium aureumThelypodium integrifoliumBrassica junceaBrassica arvensisBrassica nigraRaphanus raphanistrumStanleya pinnatifidaCaulanthus crassicaulisCardamine BreweriStenophragma virgatumArabis DrummondiiArabis HolboelliiStreptanthus cordatus. 24 MUSTARD ORDER in 1 row, style stoutish, stigma 2-lobed; flowers in racemes or corymbs;leaves entire, sinuate-toothed or lobed, often gray-hairy; annual, biennialor perennial. 1. Flowers small, petals 3-6 mm. long; pods cm. long E. c heir ant hoides 2. Flowers medium to large, petals 6-20 mm. long; pods 3-20 cm. longa. Annual or biennial, i. e., no old woody stemspresent (1) Petals 6-10 mm. long; pods 3-8 cm. long E. parvvHorum (2) Petals 12-20 mm. long; pods 5-20 cm. long E. aspernm. b. Perennials, i. e., bases of former stems usually evident (1) Flowers yellow; plant low, 2-6 in. high (2) Flowers orange to brownish-orange, or rose-purple; plant 6-16 in. high E. Wheeleri Hutchinsia Robert Brown 1812 (Named for Miss Hutchins, an Irish botanist) PI. 6, fig. 4. Sepals 4, petals 4, white, stamens 6, pod more or less elliptic, flattenedat right angles to the partition, slightly notched, severa
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectwildflo, bookyear1920
