McCourt, RM; Karol, KG; Bell, J; Helm-Bychowski, KM; Grajewska, A; Wojciechowski, MF; Hoshaw, RW. 2000. Phylogeny of the conjugating green algae (Zygnemophyceae) based on rbcL sequences. Journal of Phycology 36(4): 747-758. 
Park, NE; Karol, KG; Hoshaw, RW; McCourt, RM. 1996. Phylogeny of Gonatozygon and Genicularia (Gonatozygaceae, Desmidiales) based on rbcL sequences. European Journal of Phycology 31(4): 309-313.
McCourt, RM; Karol, KG; Kaplan, S; Hoshaw, RW. 1995. Using rbcL sequences to test hypotheses of chloroplast and thallus evolution in conjugating green algae (Zygnematales, Charophyceae). Journal of Phycology 31(6): 989-995.
Amanhart, JR; Hoshaw, RW; Palmer, Jd. 1990. Unique chloroplast genome in Spirogyra maxima (Chlorophyta) revealed by physical and gene-mapping. Journal of Phycology 26(3): 490-494.
McCourt, RM; Hoshaw, RW. 1990. Noncorrespondence of breeding groups, morphology, and monophyletic groups in Spirogyra (Zygnemataceae, Chlorophyta) and the application of species concepts. Systematic Botany 15(1): 69-78.
Wang, JC; Hoshaw, RW; McCourt, RM. 1989. Diversity of Spirogyra (Chlorophyta) filament types on an altitudinal gradient. British Phycological Journal 24(4): 367-373.
Rosowski, JR; Hoshaw, RW. 1988. Advanced anisogamy in Chlamydomonas monadina (Chlorophyceae) with special reference to vacuolar activity during sexuality. Phycologia 27(4): 494-504.
Hoshaw, RW; McCourt, RM. 1988. The Zygnemataceae (Chlorophyta) - a 20-year update of research. Phycologia 27(4): 511-548.
Hoshaw, RW; Wells, CV; McCourt, RM. 1987. A polyploid species complex in Spirogyra maxima (Chlorophyta, Zygnemataceae), a species with large chromosomes. Journal of Phycology 23(2): 267-273.
Hoshaw, RW. 1986. Sexual cycles and their implications for systematics in Sirogonium (Zygnemataceae, Chlorophyta). Phycologia 25(3): 371-378.
McCourt, RM; Hoshaw, RW; Wang, JC. 1986. Distribution, morphological diversity and evidence for polyploidy in North-American Zygnemataceae (Chlorophyta). Journal of Phycology 22(3): 307-313.
Wang, JC; Hoshaw, RW; McCourt, RM. 1986. A polyploid species complex of Spirogyra communis (Chlorophyta) occurring in nature. Journal of Phycology 22(1): 102-107.
Hoshaw, RW; Wang, JC; McCourt, RM; Hull, HM. 1985. Ploidal changes in clonal cultures of Spirogyra communis and implications for species definition. American Journal of Botany 72(7): 1005-1011.
Hull, HM; Hoshaw, RW; Wang, JC. 1985. Interpretation of zygospore wall structure and taxonomy of Spirogyra and Sirogonium (Zygnemataceae, Chlorophyta). Phycologia 24(2): 231-239.
McCourt, RM; Michaels, AF; Hoshaw, RW. 1984. Seasonality of symbiotic Prochloron (proChlorophyta) and its didemnid host in the northern Gulf of California. Phycologia 23(1): 95-101.
Hoshaw, RW. 1983. Systematics of the Zygnemataceae (Chlorophyceae) .3. Transeau collection of the Zygnemataceae - an old collection with modern uses. American Journal of Botany 70(1): 145-153.
Hull, HM; Hoshaw, RW; Wang, JC. 1982. Cytofluorometric determination of nuclear-DNA in living and preserved algae. Stain Technology 57(5): 273-282.
Hoshaw, RW; Wells, CV. 1982. Systematics of the Zygnemataceae (Chlorophyceae) .4. Nuclear cytology of Sirogonium melanosporum, a species with large chromosomes. Transactions of the American Microscopical Society 101(3): 276-286.
Hoshaw, RW; Maluf, LY. 1981. Ultrastructure of the green flagellate Dunaliella tertiolecta (Chlorophyceae, Volvocales) with comparative notes on 3 other species. Phycologia 20(2): 199-206.
Hoshaw, RW. 1980. Systematics of the Zygnemataceae (Chlorophyceae) .2. Zygospore-wall structure in Sirogonium and a taxonomic proposal. Journal of Phycology 16(2): 242-250.
Bleckmann, CA; Hull, HM; Hoshaw, RW. 1980. Cuticular ultrastructure of Prosopis velutina and Acacia greggii leaflets. Botanical Gazette 141(1): 38360.
Wells, CV Hoshaw, RW. 1980. Gamma-irradiation effects on 2 species of the green-alga Sirogonium with different chromosome types. Environmental and Experimental Botany 20(1): 39.
Scalione, TM; Hoshaw, RW. 1980. Conjugation and mating competency in Sirogonium sticticum (Chlorophyta, Zygnematales). British Phycological Journal 15(1): 43-48.
Kennedy, FGR; Hoshaw, RW. 1978. Culture study of reproductive-cycles and systematics in Mougeotia transeaui (Chlorophyta). Journal of Phycology 14(4): 445-450.
Hoshaw, RW. 1978. Interpretation of zygospore-wall structure in relation to systematics of Zygnemataceae. Journal of Phycology 14(Suppl. S): 33.
Tozun, B; Hoshaw, RW. 1976. Nuclear cytology of Cylindrocystis brebissonii meneghini (Chlorophyta). Cytologia 41(38415): 757-760.
Everett, LG; Staker, RD; Hoshaw, RW. 1976. Plankton transect analysis as an indicator of pollution levels. American Midland Naturalist 96(1): 214-221.
Clay, WF; Matsuda, K; Hoshaw, RW; Rhodes, PR. 1975. Nucleic-acid metabolism in Chlamydomonas moewusii undergoing daily cell doubling. Annals of Botany 39 (161): 525-533.
Staker, RD; Hoshaw, RW; Everett, LG. 1974. Phytoplankton distribution and water-quality indexes for Lake Mead (Colorado River). Journal of Phycology 10(3): 323-331.
Hostette.HP; Hoshaw, RW. 1972. Asexual developmental patterns of diatom Stauroneis anceps in culture. Journal of Phycology 8(3): 289.
Wells, CV; Hoshaw, RW. 1971. Nuclear cytology of Sirogonium. Journal of Phycology 7(4): 279.
Rosowski, JR; Hoshaw, RW. 1971. Results of an attempt to obtain pyrenoids of Zygnema by bulk-isolation methods. Journal of Phycology 7(4): 312.
Rosowski, JR; Hoshaw, RW. 1971. Pyrenoid of Zygnema - its growth, division and relation to starch synthesis. Journal of Phycology 7(Suppl. S): 14.
Rosowski, JR; Hoshaw, RW. 1970. Staining algal pyrenoids with carmine after fixation in an acidified hypochlorite solution. Stain Technology 45(6): 293.
Rosowski, JR; Hoshaw, RW. 1970. Isolation of pyrenoids from Zygnema. Journal of Phycology 6: 7.
Hostette.HP; Hoshaw, RW. 1970. Size distribution in a dividing population of diatoms. Journal of Phycology 6: 11.
Hoshaw, RW. 1970. An approach to individualized instruction in biological sciences. American Journal of Botany 57(6): 766.
Hoshaw, RW; Kurtz, EB; Ferko, FA. 1970. Individualized instruction in plant morphology - a case history. American Journal of Botany 57(6): 766.
Rosowski, JR; Hoshaw, RW. 1970. Cultivation of a filamentous alga in quantity on agar plates. Journal of Phycology 6(2): 219.
Hostette.HP; Hoshaw, RW. 1970. Environmental factors affecting resistance to desiccation in diatom Stauroneis anceps. American Journal of Botany 57(5): 512.
Hoshaw, RW. 1969. Problems designed for use of algal cultures. American Biology Teacher 31(1): 21.
Bartels, PG; Hoshaw, RW. 1968. Cylindrical structures in chloroplasts of Sirogonium melanosporum. Planta 82(3): 293.
Wells, CV; Hoshaw, RW. 1968. Nucleus and chromosomes of Sirogonium. Journal of Phycology S 4(Suppl. S): 5.
Hoshaw, RW; Waer, RD. 1967. Polycentric chromosomes in Sirogonium melanosporum. Canadian Journal of Botany 45(7): 1169.
Hoshaw, RW. 1966. New life in teaching organismic biology. American Journal of Botany 53(6P2): 641.
Bartels, PG; Hoshaw, RW 1966. Ultrastructural studies of chloroplast behavior in sexual cycle of green alga Sirogonium. Journal of Phycology S 2(Suppl. S): 5.
Hoshaw, RW 1965. Mating types of Chlamydomonas from collection of Gilbert M Smith. Journal of Phycology 1(4): 194.
Hoshaw, RW 1965. A cultural study of sexuality in Sirogonium melanosporum. Journal of Phycology 1(3): 134.
Hoshaw, RW; Ettl, H. 1966. Chlamydomonas smithii sp nov-a chlamydomonad interfertile with Chlamydomonas reinhardtii. Journal of Phycology 2(3): 93.
Waer, RD; Hoshaw, RW. 1965. Observations on cell division in Sirogonium melanosporum. American Journal of Botany 52(6P2): 643.
Hoshaw, RW; Waer, RD. 1964. Comparative + developmental study of sexual cycles in Sirogonium. American Journal of Botany 51(6P2): 682.
Hoshaw, RW. 1963. Sexuality in Sirogonium melanosporum. American Journal of Botany 50(6P2): 630.
Hoshaw, RW. 1962. Green algae - laboratory exercise. American Journal of Botany 49(6): 680.
Hoshaw, RW. 1961. Availability and use of algal cultures for teaching in biological sciences. American Journal of Botany 48(6): 550.
Shellhorn, SL; Hoshaw, RW. 1957. Rapid method for preparing wood sections. Stain Technology 32(4): 157-160.
Hoshaw, RW; Guard, AT. 1951. Morphological and anatomical effects of 2,4-d on young corn plants. Botanical Gazette 113(1): 65-74.
Hoshaw, RW; Guard, AT. 1950. The morphological and anatomical effects of various concentrations of 2, 4-d on corn seedlings. American Journal of Botany 37(8): 662-663.
Hoshaw, RW; Guard, AT. 1949. Abscission of marcescent leaves of Quercus palustris and Q. coccinea. Botanical Gazette 110(4): 587-593.
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