Adkins, S.W., G.M. Simpson, and J.M. Naylor. 1984. The physiological basis of seed dormancy in Avena fatua. III. Action of nitrogenous compounds. Physiol. Plant 60:227-233.

________, ________, and ________. 1984. The physiological basis of seed dormancy in Avena fatua. IV. Alternative respiration and nitrogenous compounds. Physiol. Plant 60:234-238.

________, ________, and ________. 1984. The physiological basis of seed dormancy in Avena fatua. VI. Respiration and the stimulation of germination by ethanol. Physiol. Plant 62: 148-152.

________, ________ and ________. 1985. The physiological basis of seed dormancy in Avena fatua. VII. Action of organic acids and pH. Physiol. Plant 65: 310-316.

Aker, C.L. 1982. Spatial and temporal dispersion patterns of pollinators and their relationship to the flowering strategy of Yucca whipplei (Agavaceae). Oecologia 54:243-252.

Argue, C.L. 1983. Pollen morphology in the genus Mimulus (Scrophulariaceae) and its taxonoic significance. Am. J. Bot. 76: 68-87.

Baker, G.A. 1980. Seed dimorphism in Hypochoeris glabra L. Crossosoma 6: 1-4.

________ , and D.J. ODowd. 1982. Effects of parent plant density on the production of achene in the annual Hypochoeris glabra. J. Ecol. 70:201-215.

Bell, D.T., and C.H. Muller, 1973. Dominance of California annual grassland by Brassica nigra. Am. Midl. Nat. 90:277-299.

Bjeldanes, L.F., and T.A. Geissman. 1971. Sesquiterpene lactones: constituents of an F1 hybrid Encelia farinosa x Encelia californica. Phytochemistry 10: 1079-1081.

Black, M. 1959. Dormancy studies in seed of Avena fatua. I. The possible role of germination inhibition. Can. J. Bot. 37: 393-402.

Brayton, R.D. 1978. Seed-soil color and predation as selective factors on Salvia columbariae Benth. M.S. thesis, Calif. State Univ., Los Angeles. 51 p.

________, and B. Capon. 1980. Productivity, depletion, and natural selection of Salvia columbariae seeds. Aliso 9: 581-587.

Brecht, P.E. 1969. Variations in seed germination and morphology among populations of Salvia columbariae. Benth. in southern California. M.A. thesis, Calif. State Univ., Los Angeles. 37 p.

Cairns, A.L.P., and O.T. de Villiers. 1986. Breaking dormancy of Avena fatua L. seed by treatment with ammonia. Weed Res. 26: 191-197.

Capon, B., and P.E. Brecht. 1970. Variations in seed germination and morphology among populations of Salvia columbariae Benth. in southern California. Aliso 7:207-216.

________, G.L. Maxwell, and P.H. Smith. 1978. Germination responses to temperature pretreatment of seeds from ten populations of Salvia columbariae in the San Gabriel Mountains and Mojave Desert, California. Aliso 9: 365-373.

Clark, C., and D.L. Sanders. 1986. Floral ultraviolet in the Encelia Alliance (Asteraceae: Heliantheae). Madroño 33: 130-135.

Clark, N.C. 1984. Preliminary scanning electron microscopic study of the peduncle, phyllary, and pale trichomes of Encelia (Asteraceae: Heliantheae). Crossosoma 10: 1-7.

Cole, N.H.A. 1967. Comparative physiological ecology of the genus Eriogonum in the Santa Monica Mountains, southern California. Ecol. Monogr. 37: 1-24.

Comstock, J., and J. Ehleringer. 1986. Photoperiod and photosynthetic capacity in Lotus scoparius. Plant Cell Environ. 9: 609-612.

Coquillett, D.S. 1983. On the pollination of Yucca whipplei in California. Insect Life 5: 311-314.

Cummings, B.G., and J.R. Hay. 1958. Light and dormancy in wild oats (Avena fatua L.). Nature 182: 609-610.

Cushwa, C.T., R.E. Martin, and R.T. Miller. 1968. The effects of fire on seed germination. J. Range Manage. 21:250-254.

Darmency, H., and C. Aujas. 1986. Polymorphism for vernalization requirement in a population of Avena fatua. Can. J. Bot. 64: 730-733.

Davis, Z.W. 1980. The effects of applied nutrients on Salvia mellifera (black sage) stands of different ages. M.A. thesis, Univ. of Calif., Los Angeles. 83 p.

DeMason, D.A. 1984. Offshoot variability in Yucca whipplei subsp. percursa (Agavaceae). Madroño 31: 197-202.

Dement, W.A., B.J. Tyson, and H.A. Mooney. 1975. Mechanism of monoterpene volatilization in Salvia mellifera. Phytochemistry 14:2555-2557.

DeSouza, J., P.A. Silka, and S.D. Davis. 1986. Comparative physiology of burned and unburned Rhus laurina after chaparral wildfire. Oecologia 71: 63-68.

Diggle, P.K. 1982. The relationship between the PTM and STM in Yucca whipplei Torr.: Histology of the mature vegetative stem. II. Development of the vegetative stem. M.S. thesis, Univ. of Calif., Riverside. 96 p.

Eby, F.S. 1939. The anatomy of Rhus laurina Nutt., a typical chaparral plant. M.A. thesis, Univ. of Calif., Los Angels. 33 p.

Eckart, J.R. 1970. Pollination studies in Mimulus longiflorus (Nutt.) Grant. M.A. thesis, Calif. State Univ., Los Angeles. 88 p.

Etuk, K.A. 1968. Some aspects of germination and seedling growth of Festuca megalura and Eriodium botrys on two local soil types. M.A. thesis, Univ. of Calif., Davis, 85 p.

Evans, R.A., and J.A. Young. 1972. Germination and establishment of Salsola in relation to seedbed environment. Part II. Seed distribution, germination and seedling growth of Salsola and microenvironmental monitoring of the seedbed. Agron. J. 64:219-224.

________ , and ________. 1975. Enhancing germination of dormant seeds of downy brome. Weed Sci. 23: 354-357.

________, ________, and R.B. Hawkes. 1979. Germination characteristics of Italian thistle (Carduus pycnocephalus) and slenderflower thistle (Carduus tenuflorus). Weed Sci. 27: 327-332.

Fay, P.K., and W.B. Duke. 1977. Assessment of allelopathic potential in Avena germ plasm. Weed Sci. 25:224-228.

Flint, S.D., and I.G. Palmblad. 1978. Germination dimorphism and developmental flexibility in the ruderal weed Heterotheca grandiflora. Oecologia 36: 33-43.

Fuller, P.J., and M.E. Hay. 1983. Is glue production by seeds of Salvia columbariae a deterrent to desert granivores? Ecology 64: 960-963.

Goldthwaite, J.J., J.C. Bristol, A.C. Gentile, and R.M. Klein. 1971. Light-suppressed germination of California poppy seed. Can. J. Bot. 49: 1655-1659.

Grant, V. 1949. Seed germination in Gilia capitata and its relatives. Madroño 10: 87-93.

Gray, R., and J. Bonner. 1948. An inhibitor of plant growth from the leaves of Encelia farinosa. Am. J. Bot. 35: 52-57.

Gulmon, S. L. 1983. Carbon and nitrogen economy of Diplacus aurantiacus, a Californian Mediterranean-climate drought-deciduous shrub. Pages 167-178 in F.J. Kruger, D.T. Mitchell, and J.U.M. Jarvis, editors. Mediterranean-type ecosystems: the role of nutrients. Springer-Verlag, Berlin.

________, and C.C. Chu. 1981. The effects of light and nitrogen on photosynthesis, leaf characteristics, and dry matter allocation in the chaparral shrub, Diplacus aurantiacus. Oecologia 49:207-212.

Haines, A.L. 1939. A study of variation in Yucca whipplei. M.A. thesis, Univ. of Calif., Los Angeles. 64 p.

________. 1941. Variation in Yucca whipplei. Madroño 6: 33-45.

Halligan, J. P. 1975. Toxic terpenes from Artemisia californica. Ecology 56: 999-1003.

________. 1976. Toxicity of Artemisia californica to four associated herb species. Am. Midl. Nat. 95: 406-421.

Hilton, J.R. 1985. The influence of light and potassium nitrate on the dormancy of germination of Avena fatua L. (wild oat) seed stored buried under natural conditions. J. Exp. Bot. 36: 974-979.

Hobbs, R.J., and H.A. Mooney. 1985. Vegetative regrowth following cutting in the shrub Baccharis pilularis ssp. consanguinea (DC) C.B. Wolf. Am. J. Bot. 72: 514-519.

Hoffman, G.R., and D.L. Hazlett. 1977. Effects of aqueous Artemisia extracts and volatile substances on germination of related species. J. Range Manage. 30: 134-137.

Homer, J.T. 1960. A study of the toxins of poison ivy (Rhus toxicodendron), poison oak (Rhus diversiloba) and poison sumac (Rhus vernix) by the techniques of immunodiffusion and immunoelectrophoresis. M.S. thesis, Calif. State Univ., Sacramento. 55 p.

Hoover, D.A. 1973. Evidence from population studies for two independent variation patterns in Yucca whipplei Torrey. M.S. thesis, Calif. State Univ., Northridge. 145 p.

Hsiao, A.I., G.I. McIntyre, and J.A. Hanes. 1983. Seed dormancy in Avena fatua. I. Induction of germination by mechanical injury. Bot. Gaz. 144:217-222.

Hull, J.C. 1974. The potential for dominanc by Stipa pulchra in a California grassland. Ph.D. dissertation, Univ. of Calif., Santa Barbara. 100 p.

________, and C.H. Muller. 1977. The potential for dominance by Stipa pulchra in a California grassland. Am. Midl. Nat. 97: 147-175.

Jain, S.K. 1982. Variation and adaptive role of seed dormancy in some annual grassland species. Bot. Gaz. 143: 101-106.

Jana, S., and J.M. Naylor. 1980. Dormancy studies in seed of Avena fatua. 11. Heritability for seed dormancy. Can. J. Bot. 58: 91-93.

________, S.N. Acharya, and J.M. Naylor. 1979. Dormancy studies in seed of Avena fatua. 10. On the inheritance of germination behavior. Can. J. Bot. 57: 1663-1667.

Johnson, N.D., C.C. Chu, P.R. Ehrlich, and H.A. Mooney. 1984. The seasonal dynamics of leaf resin, nitrogen, and herbivore damage in Eriodictyon californicum and their parallels in Diplacus aurantiacus. Oecologia 61: 398-402.

Jones, C.E., and M. Cruzan. 1982. Floral color changes in deerweed (Lotus scoparius): possible function. Crossosoma 8:1-6.

Jones, C.S., and W.H. Schlesinger. 1980. Emmenanthe penduliflora (Hydrophyllaceae); further consideration of germination response. Madroño 27: 122-125.

Keeley, J. E. 1986. Seed germination patterns of Salvia mellifera in fire-prone environments. Oecologia 71: 1-5.

________. 1986. Inter- and intralocular distribution of yucca moth larvae in Yucca whipplei (Agavaceac). Bull. South. Calif. Acad. Sci. 85: 173-176.

________. 1987. Role of fire in seed germination of woody taxa in California USA chaparral. Ecology 68: 434-443.

________. 1987. Role of fire in the germination of chaparral herbs and suffrutescents. Madroño 34 (3):240-249.

________. 1991. Seed germination and life history syndromes in the California chaparral. Bot. Rev. 57: 81-116.

________, B.A. Morton, A. Pedrosa, and P. Trotter. 1985. Role of allelopathy, heat, and charred wood in the germination of chaparral herbs and suffrutescents. J. Ecol. 73: 445-458.

________, and M.E. Nitzberg. 1984. The role of charred wood in the germination of the chaparral herbs Emmenanthe penduliflora (Hydrophyllaceae) and Eriophyllum confertiflorum (Asteraceae). Madroño 31:208-218.

________, and D.A. Tufenkian. 1984. Garden comparison of germination and seedling growth of Yucca whipplei subspecies. Madroño 31:24-29.

________, S.C. Keeley, and D.A. Ikeda. 1986. Seed predation by yucca moths on semelparous, iteroparous and vegetatively reproducing subspecies of Yucca whipplei (Agavaceae). Am. Midl. Nat. 115: 1-9.

________, S.C. Keeley, C.C. Swift, and J. Lee. 1986. Seed predation due to the Yucca-moth symbiosis. Am. Midl. Nat. 112: 187-191.

LaPre, L.F. 1979. Physiological ecology of Yucca schidigera. Ph.D. dissertation, Univ. of Calif., Riverside. 117 p.

Lincoln, D.E. 1981. Leaf resin flavonoids of Diplacus aurantiacus. Biochem. Syst. Ecol. 8: 397-400.

________, and H.A. Mooney. 1984. Herbivory on Diplacus aurantiacus shrubs in sun and shade. Oecologia 64: 173-176.

________, and M.D. Walla. 1986. Flavonoids from Diplacus aurantiacus leaf resin. Biochem. Syst. Ecol. 14: 195-198.

________, T.S. Newton, P.R. Ehrlich, and K.S. Williams. 1982. Coevolution of the checkerspot butterfly Euphydryas chalcedona and its larval food plant Diplacus aurantiacus: larval response to protein and leaf resin. Oecologia 52:216-223.

Lloret, F., and P.H. Zedler. 1991. Recruitment of Rhus integrifolia in chaparral. J. Veg. Sci. 2:217-230.

Lockhead, L.J. 1974. Hybridization and its consequences in some species of Calystegia in California. M.A. thesis, Univ . of Calif., Santa Barbara. 53 p.

Lokerst, J.D. 1981. Reproductive strategies in Calochortus. M.A. thesis, Calif. State Unv., Chico. 78 p.

Lorber, P. 1974. Allelopathic effects of volatile monoterpenes produced by Salvia leucophylla. Ph.D. dissertation, Univ. of Calif., Santa Barbara. 101 p.

________, and W.H. Muller. 1976. Volatile growth inhibitors produced by Salvia leucophylla: effects of seedling root tip ultrastructure. Am. J. Bot. 63: 195-211.

________, and ________. 1980. Volatile growth inhibitors produced by Salvia leucophylla: effects on cytological activity in Allium cepa. Comp. Physiol. Ecol. 5: 60-67.

________, and ________. 1980. Volatile growth inhibitors produced by Salvia leucophylla: effects on metabolic activity in mitochondrial suspensions. Comp. Physiol. Ecol. 5: 68-75.

Louda, S.M. 1982. Distribution, ecology, and variation in plant recruitment over a gradient in relation to insect seed predation. Ecol. Monogr. 52:25-42.

________. 1982. Inflorescence spiders: a cost/benefit analysis for the host plant, Haplopappus venetus Blake (Asteraceae). Oecologia 55: 185-191.

________ 1982. Limitation of the recruitment of the shrub Haplopappus squarrosus (Asteraceae) by flower-and seed-feeding insects. J. Ecol. 70: 43-53.

________. 1983. Seed predation and seedling mortality in the recruitment of a shrub Haplopappus venetus Asteraceae along a climatic gradient. Ecology 64: 511-521.

Mahall, B. E. 1985. Chaparral shrubs and their endurance of extreme drought. Chaparral ecosystem research, program & abstracts, May 16-17. Univ. of Calif., Santa Barbara.

________, and D. S. Gill. 1981. Leaf curling, photoinhibition and recovery from drought in Salvia mellifera. Bull. Ecol. Soc. Am. 62: 66.

Manheim, B.S. 1978. Epicuticular wax constituents in Dudleya (Crassulaceae). M.A. thesis, Claremont Graduate School, Claremont, California. 31 p.

Martin, B.D. 1984. Influence of slope aspect on postfire reproduction of Encelia farinosa (Asteraceae). Madroño 31: 187-189.

Maxwell, G.L. 1972. The effects of temperature pre-treatments on the germination of seeds from ten populations of Salvia columbriae in the San Gabriel Mountains, California. M.A. thesis, Calif. State Univ., Los Angeles. 31 p.

McCahon, C.B., R.G. Kelsey, R.P. Sheridan, and F. Shafizadeh. 1973. Physiological effects of compounds extracted from sagebrush. Bull. Torrey Bot. Club100:23-28.

McIntyre, G.I., and A.I. Hsiao. 1985. Seed dormancy in Avena fatua. II. Evidence of embryo water content as a limiting factor. Bot. Gaz. 146: 347-352.

Mooney, H.A., K.S. Williams, D.E. Lincoln, and P.R. Ehrlich. 1981. Temporal and spatial variability in the interaction between the checkerspot butterfly, Euphdryas chalcedona and its principal food source, the Californian shrub Diplacus aurantiacus. Oecologia 50: 195-198.

________, P.R. Ehrlich, D.E. Lincoln, and K.S. Williams. 1980. Environmental controls on the seasonality of a drought deciduous shrub, Diplacus aurantiacus and its predator the checkerspot butterfly, Euphdryas chalcedona. Oecologia 45: 143-146.

Muller, C. H. 1965. Inhibitory terpenes volatilized from Salvia shrubs. Bull. Torrey Bot. Club 92: 38-45.

________, and R. del Moral. 1966. Soil toxicity induced by terpenes from Salvia leucophylla. Bull. Torrey Bot. Club 93: 130-137.

Muller, K.K. 1950. Native buckwheats. Santa Barbara Botanic Garden Leaflet, Volume 1, No. 8.

Muller, W.H, and C. H. Muller. 1964. Volatile growth inhibitors produced by Salvia species. Bull. Torrey Bot. Club 91: 327-330.

________. 1965. Volatile materials produced by Salvia leucophylla: effect on seedling growth and soil bacteria. Bot. Gaz. 126: 195-200.

________, and R. Hague. 1967. Volatile growth inhibitors produced by Salvia leucophylla: effect on seedling anatomy. Bull. Torrey Bot. Club 94: 182-191

________, P. Lorber, and B. Haley. 1968. Volatile growth inhibitors produced by Salvia leucophylla: effects on seedling growth and respiration. Bull. Torrey Bot. Club 95: 415-522.

________, ________, ________, and K. Johnson. 1969. Volatile growth inhibitors produced by Salvia leucophylla: effect on oxygen uptake by mitochondrial suspensions. Bull. Torrey Bot. Club 96: 819-895.

Mulroy, T.W. 1976. The adaptive significance of epicuticular waxes in Dudleya (Crassulaceae). Ph.D. dissertation, Univ. of Calif., Irvine. 105 p.

Munz, P.A. 1932. Dermatitis produced by Phacelia. Science 76: 194.

Naylor, J.M., and P. Fedec. 1978. Dormancy studies in seed of Avena fatua. 8. Genetic diversity affecting response to temperature. Can. J. Bot. 56:2224-2229.

________, and S. Jana. 1976. Genetic adaptation for seed dormancy in Avena fatua. Can. J. Bot. 54: 306-312.

Newton, W.C. 1979. Physiology ecology of Salvia columbariae seed germination. M.S. thesis, Calif. State Univ., Los Angeles. 30 p.

Nilsen, E.T. 1980. Phenology of Lotus scoparius (Nutt. in T. & G.) Ottley: climatic control and adaptive significance. Ph.D. dissertation, Univ. of Calif., Santa Barbara. 134 p.

________. 1982. Productivity and nutrient cycling in the early postburn chaparral species Lotus scoparius. Pages 291-296 in C. E. Conrad and W. C. Oechel, technical coordinators. Proceedings of the symposium on dynamics and management of Mediterranean-type ecosystems. Pacific Southwest Forest and Range Experiment Station General Technical Report PSW-58, Berkeley, California.

________, and W. H. Muller. 1980. An evaluation of summer deciduousness in Lotus scoparius. (Nutt. in T. & G.) Ottley. Am. Midl. Nat. 103: 88-95.

________, and ________. 1981. Phenology of the drought deciduous shrub Lotus scoparius: climatic controls and adaptive significance Ecol. Monogr. 51: 323-341.

________, and ________. 1981. The influence of low plant water potential on the growth and nitrogen metabolism of the native California fire response shrub Lotus scoparius (Nutt. in T. & G.) Ottley. Am. J. Bot. 68: 402-407.

________, and ________. 1982. The influence of photoperiod on drought induction of dormancy in Lotus scoparius. Oecologia 53: 79-83.

OLeary, J.F. 1976. Habitat preferences of the genus Lupinus in the western Transverse Ranges of southern California. M.A. thesis, Univ. of Calif., Los Angeles. 66 p.

________. 1982. Habitat preferences of Lupinus (Fabaceae) in the western Transverse Ranges of southern California. Southwest. Nat. 27: 369-397.

Pitelka, L.F. 1978. Variation in caloric values of annual and perennial lupines (Lupinus: Leguminosae). Am. Midl. Nat. 99: 454-461.

Powell, J.A., and R.A. Mackie. 1966. Biological interrelationships of moths and Yucca whipplei (lepidoptera: Gelechiidae, Blastobasidae, Prodozidae). Univ. of Calif. Publications in Entomol. 42: 1-59.

Preston, K.P. 1993. Selection for sulfur dioxide and ozone tolerance in Bromus rubens along the south-central coast of California. Ann. Assoc. Am. Geog. 83: 141-155.

Quick, C.R. 1947. Germination of Phacelia seeds. Madroño 9: 17-20.

Ratliff, R.D. 1974. Eriogonum fasciculatum Benth. California buckwheat. Pages 382-383 in C.S. Schopmeyer, editor. Seeds of woody plants in the United States. USDA Forest Service, Agriculture Handbook No. 450. 883 p.

Raven, P. H. 1988. The California flora. Pages 109-137 in M. G. Barbour and J. Major, editors. Terrestrial vegetation of California. John Wiley and Sons, New York.

Read, E. 1983. Pollen dispersal and the pollination ecology of Salvia carduacea. Benth. (Lamiaceae). Crossosoma 9: 1-13.

Rieseberg, L.H., and E.E. Schilling. 1985. Floral flavonoids and ultraviolet patterns in Viguira (Compositae). Am. J. Bot. 72: 999-1004.

Savage, W. 1967. Anatomical studies in Eriodictyon californicum ( Hook. and Arn.) Torrey (Hydrophyllaceae). Ph.D. dissertation, Univ. of Calif., Berkeley. 79 p.

Sawhney, R., and J.M. Naylor. 1982. Dormancy studies in seed of Avena fatua. 13. Influence of drought stress during seed development on duration of seed dormancy. Can. J. Bot. 60: 1016-1020.

________, W.A. Quick, and A.I. Hsiao. 1985. The effect of temperature during parental vegetative growth on seed germination of wild oats (Avena fatua L.). Ann. Bot. 55:25-28.

Schlising, R.A. 1966. Reproductive ecology of plants in the genus Marah ( Cucurbitaceae). Ph.D. dissertation, Univ. of Calif., Berkeley. 179 p.

________. 1969. Seedling morphology in Marah (Cucurbitaceae) related to California Mediterranean climate. Am. J. Bot. 56: 552-561.

________. 1976. Reproductive proficiency in Paeonia californica (Paeoniaceae). Am. J. Bot. 63: 1095-1103.

Simpson, G.M. 1965. Dormancy studies in seed of Avena fatua. 4. The role of gibberellin in embryo dormancy. Can. J. Bot. 43: 792-816.

Taylor, K.F. 1968. The ecology of Emmenanthe Benth. (Hydrophyllaceae). M.A. thesis, San Francisco State Univ., San Francisco, CA. 64 p.

Tinnin, R.O. 1969. The allelopathic influence of Avena fatua on herb distribution. Ph.D. dissertation, Univ. of Calif., Santa Barbara. 88 p.

________, and C.H. Muller. 1971. The allelopathic potential of Avena fatua: influence on herb distribution. Bull. Torrey Bot. Club 98:243-250.

________, and ________. 1972. The allelopathic potential of Avena fatua: the allelopathic mechanism. Bull. Torrey Bot. Club 99: 386-392.

Tyson, B., W. Dement, and H. A. Mooney. 1974. Volatilization of terpenes from Salvia mellifera. Nature 252:119-120.

Udovic, D. 1981. Determinants of fruit set in Yucca whipplei: reproductive expenditure vs. pollinator availability. Oecologia 48: 389-399.

________, and C.L. Aker. 1981. Fruit abortion and the regulation of fruit number in Yucca whipplei. Oecologia 49:245-248.

Visco, F.H. 1968. Pollination mechanisms in three species of Salvia native to southern California. M.A. thesis, Calif. State Univ., Los Angeles. 97 p.

Vlamis, J., A.M. Schultz, and H.H. Biswell. 1958. Nitrogen-fixation by deerbrush. Calif. Agric. 12: 11-15.

Werk, K.S., and J.R. Ehleringer. 1983. Photosynthesis by flowers in Encelia farinosa and Encelia californica (Asteraceae). Oecologia 57: 311-315.

Wicklow, D.T. 1977. Germination response in Emmenanthe penduliflora (Hydrophyllaceae). Ecology 58: 201-205.

Wilkin, D.H. 1971. Seasonal dimorphism in Baccharis glutinosa (Compositae). Madroño 21: 113-119.

Williams, K. S., G.W. Koch, and H.A. Mooney. 1985. The carbon balance of flowers of Diplacus aurantiacus (Scrophulariaceae). Oecologia 66: 530-535.

Wimber, D.R. 1958. Pollination of Yucca whipplei Torrey M.A. thesis, Claremont Graduate School, Claremont, California. 77 p.

Young, D.A. 1974. Comparative wood anatomy of Malosma and related genera (Anacardiaceae). Aliso 8: 133-146.

Youngken, H.W., and F.W. Heaps, Jr. 1948. Studies on the leaf of Salvia leucophylla. J. Am. Pharm. Assoc. 37:284-287.