speciesHymenoxys brandegeei (Porter ex A. Gray) K. F. Parker Madroño 10: 159. 1950. Mark W. Bierner Common names: Brandegee’s rubberweed western bitterweed
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Basionym: Lepidium montanum subsp. demissum C. L. Hitchcock Madroño 10: 157. 1950, Treatment appears in FNA Volume 7. Treatment on page 576. Mentioned on page
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speciesHymenoxys grandiflora (Torrey & A. Gray) K. F. Parker Madroño 10: 159. 1950. Mark W. Bierner Common names: Graylocks rubberweed four-nerved daisy IllustratedEndemic
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distinct (D. S. Correll 1950; C. L. Hitchcock et al. 1955–1969, vol. 5; J. A. Calder and R. L. Taylor 1968; E. Hultén 1941–1950, vol. 3) have been summarized
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Setaria (Poaceae: Paniceae). Sida 18:1037-1047 Hitchcock, A.S. 1951 [title page 1950]. Manual of the Grasses of the United States, ed. 2, rev. A. Chase. U.S.D
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(1973) considered Geocaulon as a species of Comandra, whereas M. L. Fernald (1950) recognized separate genera. The treatment here follows the most comprehensive
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where it has been named Sedum atropurpureum N. S. Turczaninow (E. Hultén 1941–1950, vol. 5), and R. rosea seems to extend (although not verified by chromosome
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College Station, Texas, U.S.A. 653 pp. Hitchcock, A.S. 1951 [title page 1950]. Manual of the Grasses of the United States, ed. 2, rev. A. Chase. U.S.D
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in varied descriptions. The genus has been called dioecious (M. L. Fernald 1950), subdioecious (H. A. Gleason and A. Cronquist 1991), and polygamous (Xia
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393–412. Gaiser, L. O. 1950. Chromosome studies in Liatris. I. Spicatae and Pycnostachyae. Amer. J. Bot. 37: 122–135. Gaiser, L. O. 1950b. Chromosome studies
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genusKallstroemia speciesKallstroemia perennans B. L. Turner Field & Lab. 18: 155. 1950. Duncan M. Porter Conservation concernEndemic Basionym: Kallstroemia hirsuta L
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Eula’s aster Endemic Basionym: Aster eulae Shinners Field & Lab. 18: 35. 1950 Treatment appears in FNA Volume 20. Treatment on page 516. Mentioned on page
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Hasseanthus blochmaniae subsp. brevifolius Moran Desert Pl. Life 22: 80, fig. 4. 1950 Synonyms: Dudleya blochmaniae subsp. brevifolia (Moran) Moran Treatment appears
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brevissimus var. multiflorus Cronquist Res. Stud. State Coll. Wash. 18: 80. 1950. James D. Morefield Common names: Delta woolly marbles Endemic Treatment
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and Allozyme Data. M.S. thesis. San Diego State University. Moran, R. V. 1950. Notes on Hasseanthus, I. Desert Pl. Life 22: 76–82. Moran, R. V. 1951b.
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ed. 2. Edwin B. Smith, Fayetteville, Arkansas, U.S.A. 489 pp. Snyder, L.A. 1950. Morphological variability and hybrid development in Elymus glaucus. Amer
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N.S., Que., Europe. Subspecies vestita was recognized by M. L. Fernald (1950) and A. E. Roland and E. C. Smith (1966) as Alchemilla minor Hudson, a misapplication
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common example is Comandra richardsiana, which according to M. L. Fernald (1950) represents a western and northern extreme form with a corymbose inflorescence
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thistle Endemic Basionym: Cirsium davisii Cronquist Leafl. W. Bot. 6: 46. 1950 Treatment appears in FNA Volume 19. Treatment on page 135. Mentioned on page
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spergulinum var. pratense (S. Stokes) J. T. Howell Leafl. W. Bot. 6: 80. 1950. James L. Reveal Common names: Mountain meadow wild buckwheat Endemic Basionym:
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