Bibiography:  Reference Listing
for the Cyperaceae


Ayers, Brother B. 1946. The Genus Cyperus in México. Catholic University of America, Biological series 1:xii + 103.

Bailey, L. H. 1889. Studies of the types of various species of the genus Carex. Memoirs of the Torrey Botanical Club 1: 1-85.

Bailey, L. H. 1894a. Carex. In. Committee of the Botanical Club of the American Association for the Advancement of Science, list of Pteridophyta and Spermatophyta growing without cultivation in northeastern North America. 71-101. Memoirs of the Tor

Bailey, L. H. 1894b. Carex. In. J. M. Coulter (ed.) Manual of the phaerogams and pteridophytes of western Texas. 476-484. Contributions from the United States National Herbarium. Smithsonian Institutuion 2: 347-588.

Ball, P. W. 1998. Carex mckittrickensis (Cyperaceae), a new species from western Texas. Novon 8: 220-224.

Ball, P.W. 1990. Some aspects of the phytogeography of Carex. Canad. J. Bot. 68:1462-1472.

Beetle, A. A. 1941. Studies in the genus Scirpus L III. The American species of the section Lacustres Clarke. Amer. J. Bot. 28:691-700.

Beetle, A. A. 1942. Studies in the genus Scirpus L. IV. The section Bolboschoenus Pall. American Journal of Botany 42:82-88.

Beetle, A. A. 1947. Scirpus. N. Amer. Fl. 18:481-504.

Beetle, A. A. 1950. Bulrushes and their multiple uses Econ. Bot. 4:132-138.

Bernard, J.M. 1990. Life history and vegetative reproduction in Carex Canad. J. Bot. 68:1441-1448.

Boott, F. 1858. Illustrations of the genus Carex. Vol. 1. William Pamplin, London.

Bridges, E. L. and S. L. Orzell. 1989b. A new species of Carex (sect. Oligocarpae) from the Edwards Plateau of Texas. Phytologia 67:148-154.

Britton, N. L. 1884. A list of Cyperaceae. Bulletin of the Torrey Botanical Club 11:85-87.

Brown, L. E. and C. D. Peterson. 1984. Carex rosea (Cyperaceae), Trifolium lappaceum (Fabaceae), and Aira caryophyllea (Poaceae) new to Texas. Sida 10:363-364.

Browning, J., K.D. Gordon-Gray, and S.G. Smith. 1995. Achene structure and taxonomy of North American Bolboschoenus (Cyperaceae) Brittonia 47:433-445.

Bruhl, J.J. 1995. Sedge genera of the world: Relationships and a new classification of the Cyperaceae Austral. Syst. Bot. 8:125-305.

Bruhl, J.J., L. Watson, and M.J. Dallwitz. 1992. Genera of Cyperaceae: Interactive identification and information retrieval Taxon, 41:225-234.

Bryson, C. T. 1980. A revision of the North American Carex section laxiflorae (Cyperaceae). Ph.D. Disseration. Mississippi State University, Starksville.

Bush, B. F. 1905. The North American species of Fuirena. Annual report of the Misssouri Botanical Garden 16:87-99.

Carr, B. 1988. Cyperus difformis L. (Cyperaceae) new to Texas. Sida 13:25-26.

Carr, W. 1988. Cyperus difformis L. (Cyperaceae) new to Texas Sida 13:255-256.

Carter, J. R. 1984. A systematic study of the New World species of section Umbellati of Cyperus. Ph.D. Disseration. Vanderbilt University, Nashville, TN.

Carter, J.R. and R. Kral. 1990. Cyerus echinatus and Cyperus croceus, the correct names for North American Cyperus ovularis and Cyperus globulosus (Cyperaceae) Taxon 39:322-327.

Carter, J.R. and S.D. Jones. 1997. Notes on the Cyperus retroflexus complex (Cyperaceae) with three nomenclatural proposals Rhodora 99:319-334.

Carter, R. 1990. Cyperus entrerianus (Cyperaceae), an overlooked species in temperate North America. Sida 14(1):69-77.

Carter, R. and R. Kral. 1990. Cyperus echinatus and Cyperus croceus, the correct names for North American Cyperus ovularis and Cyperus globulosus (Cyperaceae). Taxon 39(2):322-327.

Carter, R. and S. D. Jones. 1997. Notes on the Cyperus retroflexus complex (Cyperaceae) with three nomenclatural proposals. Rhodora: 99(900): 319-334.

Carter, R., D. K. Alexander, and C. T. Bryson. 1999. The taxonomy of Cyperus virens and Cyperus drummondiiD200 (Cyperaceae) in the southeastern United States. Sida 18(4):1049-1063.

Core, E. L. 1936. The American species of Scleria. Brittonia 2:1-105.

Core, E.L. 1966. Cyperaceae: Scleria. In: C.L. Lundell, ed;Flora of Texas 1:383-391 Texas Research Foundation, Renner.

Coville, F.V. 1890. Revision of the United States species of the genus Fuirena Bull. Torrey Bot. Club 17:1-8.

Crins, W. J. 1990. Phylogenetic considerations below the sectional level in Carex. Canadian Journal of Botany 68: 1433-1440.

Delahoussaye, J.A. and J.W. Thieret. 1967. Cyperus subgenus Kyllinga (Cyperaceae) in the Continental United States Sida 3:128-136.

Denton, M. F. 1978. A taxonomic treatment of the Luzulae group of Cyperus. Contributions from the University of Michigan Herbarium 11(4):197-271.

Drapalik, D.J. and R.H. Mohlenbrock. 1960. A study of Eleocharis, series Ovatae Amer. Midl. Naturalist 64:339-341.

Fairey, J. E. 1969. Scleria pauciflora Muhl. and its varieties in North America. Castanea 34:87-90.

Fairey, J. E. 1975. Nomenclatural changes in the North American species of Scleria (Cyperaceae), sections Hypoporum and Scleria. Association of southeastern biologists bulletin 22(2):52.

Fernald, M. L. 1943. The identity of Scleria setacea of Poiret. Rhodora 45:296-297.

Fernald, M.L. and A.E. Brackett. 1929. The representatives of Eleocharis palustris in North America Rhodora 31:57-77.

Friedland, S. 1942. The American species of Hemicarpha. American Journal of Botany 28(10):855-861.

Gale, S. 1944a. Rhynchospora, sectionEurhynchospora, in Canada, the United States and the West Indies. Rhodora 46(544):89-134.

Gale, S. 1944b. Rhynchospora, section Eurhynchospora, in Canada, the United States and the West Indies (continued). Rhodora 46(545):159-197, 821-826.

Gale, S. 1944c. Rhynchospora, section Eurhynchospora, in Canada, the United States and the West Indies (continued). Rhodora 46(546):207-249, 827-831.

Gale, S. 1944d. Rhynchospora, section Eurhynchospora in Canada, the United States and the West Indies (continued). Rhodora 46(547):255-278, 832-835.

Goethtghebeur, P. 1987. A holosystematic approach of the family Cyperaceae. In: W. Greuter, B. Zimmer, and H.-D. Behnke, eds Abstracts of the 14th International Botanical Congress, Berlin, Jul 24-Aug 1, 1987 Pp. 276. (Abstr.), Botanical Museum Berlin-Dahlem, Berlin.

Gonz?lez-Elizondo, M. and P.M. Peterson. 1997. A classification of and key to the supraspecific taxa in Eleocharis (Cyperaceae) Taxon 46:433-449.

Govindarajalu, E. 1970. Studies in Cyperaceae III. Novelties in Scleria Berg. Proceedings of the Indian Academy of Science 71(6):221-225.

Handell, S.N. 1978. New ant-dispersed species in the genera Carex, Luzula, and Claytonia Canad. J. Bot. 56:2925-2927.

Harms, L. J. 1972. Cytotaxonomy of the Eleocharis tenuis complex. American Journal of Botany 59:483-487.

Harms, L.J. 1968. Cytotaxonomic studies in Eleocharis subser. Palustres: Central United States taxa Amer. J. Bot. 55:966-974.

Heiser, C.B., Jr. 1978. The totora (Scirpus californicus) in Ecuador and Peru Econ. Bot. 32:222-236.

Hermann, F. J. 1970. Manual of the Carices of the Rocky Mountains and Colorado Basin. Agricultural Handbook 374, United States Department of Agriculture, Washington, D.C.

Hermann, F.J. 1954a. Addenda to North American carices Amer. Midl. Naturalist 51:265-286.

Hines, D. M. 1975. A monograph of the Eleocharis ovata complex (Cyperaceae) in North America. Ph.D. Disseration. The Univesity of Michigan, Ann Arbor.

Jermy, A. C., A. O. Chater, and R. W. David. 1982. Sedges of the British Isles. Botanical Socoiety of the British Isles. London.

Johnston, M.C. 1964. Scirpus molestus M.C. Johnston (Cyperaceae), sp. nov. from Arkansas, Louisiana, and Texas SouthW. Naturalist 9:310-312.

Johnston, M.C. 1966. The Texas species of Cyperus subgenus Kyllinga (Cyperaceae) SouthW. Naturalist 11:123-124.

Jones, M. E. 1933. Fuirena. Contributions to Western Botany 18:25.

Jones, S. D. 1994a. A taxonomic study of the Carex muhlenbergii and C. cephalophora complexes (Cyperaceae:Phaestoglochin). Ph.D. Disseration. Texas A&M University, College Station.

Jones, S. D. 1994b. A new species of Carex (Cyperaceae: Phaestoglochin) from Oklahoma and Texas; typification of section Phaestoglochin, and notes on sections Bracteosae and Phaestoglochin. Sida 16(2):341-353.

Jones, S. D. and A. A. Reznicek. 1991. Carex bicknellii. Phytologia 70(2):115-118.

Jones, S. D. and G. D. Jones. 1990. Rhynchospora capillacea (Cyperaceae), new to Texas. Sida 14(1):134-135.

Jones, S. D. and G. D. Jones. 1993. A new species of Carex (Cyperaceae: Triquetrae) from the Chisos Mountains, Texas, and a key to species of section Triquetrae. Sida 15:509-518.

Jones, S. D. and J. K. Wipff. 1992. Bulbostylis barbata (Cyperaceae) previously unreported for Texas. Phytologia 73(5):381-383.

Jones, S. D. and S. L. Hatch. 1990. Synopsis of Carex section Lupulinae (Cyperaceae) in Texas. Sida 14:87-99.

Jones, S. D., G. D. Jones, and J. K. Wipff. 1990a. Carex fissa, sectionMultiflorae (Cyperaceae), new to Texas. Phytologia 68(6):47-50.

Jones, S. D., G. D. Jones, and J. K. Wipff. 1990b. The rediscovery of Carex lupuliformis, section Lupulinae (Cyperaceae) in Texas. Phytologia 69(5):346-347.

Jones, S. D., G. D. Jones, and S. L. Hatch. 1991. The deletion of Carex stipata (Cyperaceae) from the Texas flora. Phytologia 71(1):1-4.

Jones, S. D., J. K. Wipff, and G. D. Jones. 1991. The rediscovery of Carex gigantea (Cyperaceae) in Texas. Sida 14(3):511-512.

Jones, S. D., J. K. Wipff, and R. Carter. 1996. Nomenclatural combinations in Cyperus (Cyperaceae). Phytologia 80(4):288-290. Note: this volume is marked April 1996 but was not published until December 1996.

Kessler, J. W. 1983. Cyperaceae new to Texas and Louisiana. Sida 10:190-191.

Kessler, J. W. 1987. A treatment of Scleria (Cyperaceae) for North America north of México. Sida 12:391-407.

Kessler, J. W. and L. E. Brown. 1984. Scirpus cernuus Vahl var. californicus (Torr.) Beetle (Cyperaceae) new to Texas. Sida 10:322.

Kessler, J. W., and T. Starbuck. 1983. Cyperaceae new to Texas and Louisiana. Sida 10(2):190-191.

Kolstad, O.A. 1986. Fimbristylis. In: Great Plains Flora Association Flora of the Great Plains Pp. 1104-1105, Univ. Press of Kansas, Lawrence.

Kolstad, O.A. 1986. Scirpus. In: Great Plains Flora Association Flora of the Great Plains Pp. 1107-1112, Univ. Press of Kansas, Lawrence.

Koyama, T. 1961. Classification of the family Cyperaceae. I. Journal of the Faculity of Science, University of Tokyo 8:37-148.

Koyama, T. 1962. The genus Scirpus Linn. Some North American aphylloid species. Canadian Journal of Botany 40:913-937.

Koyama, T. 1963. The genus Scirpus Linn. Critical species in the section Pterolepis. Canadian Journal of Botany 41:1107-1131.

Kral, R. 1971. A treatment of Abildgaardia, Bulbostylis and Fimbristylis (Cyperaceae) for North America. Sida 4(2):57-227.

Kral, R. 1978. A synopsis of Fuirena (Cyperaceae) for the Americas north of South America. Sida 7(4):309-354.

Kral, R. 1999. A revised taxonomy for two North American Rhynchospora (Cyperaceae) and for two North American Xyris (Xyridaceae). Novon 9: 205-219.

Kreczetovicz, V. I. 1935. Genus Carex. In: Komarov, V. L. (ed.), Flora of USSR III. Translated in English by Israel Program for Scientific Translation. Jerusalem.

Kükenthal, G. 1909. Cyperaceae: Caricoideae. Das Pflanzenreich. IV. 20 (Heft 38): 296-353. W. Engelmann, Leipzig, Germany.

Kükenthal, G. 1935-1936. Cyperaceae-Scirpoideae-Cypereae. Subgen. I. Eucyperus (Griseb.) C. B. Clarke; Subgen. II. Juncellus (Griseb.) C. B. Clarke. In. Engler. Das Pflanzenreich. IV. 20 (Heft 101):42-315. Wilhelm-Engelmann: Leipzig, Germany.

Kükenthal, G. 1936. Cyperaceae-Scirpoideae-Cypereae. In. Engler. Das Pflanzenreich. IV. 20 (Heft 101, pt. 2). Engelmann-Cramer, Stuttgart, Germany.

Kükenthal, G. 1949. Vorarbeiten zu einer Monographie der Rhynchosporideae. Rhynchospora. Botanische Jahribücher für Systematik 74:375-509.

Kükenthal, G. 1950a. Vorabeiten zu einer Monographie der Rhynchosporideae. Botanische Jahribücher für Systematik 75(1):90-126.

Kükenthal, G. 1950b. Vorabeiten zu einer Monographie der Rhynchosporideae. Botanische Jahribücher für Systematik 75(2):127-195.

Kükenthal, G. 1951. Vorarbeiten zu einer Monographie der Rhynchosporideae. Botanische Jahribücher für Systematik 75(3):273-314.

La Hham, J. N. 1980. A taxonomic study of the Carex pensylvanica complex (Cyperaceae) in North America. Ph.D. Disseration. The Pennsylvania State University.

Lipscomb, B.L. 1978a. Cyperus surinamensis (Cyperaceae): New to Arkansas, Kansas, and Oklahoma Sida 7:307.

Lipscomb, B.L. 1980. Cyperus difformis L. (Cyperaceae) in North America Sida 8:320-327.

Mackenzie, K. K. 1931-35. North American Flora. 18. Cyperaceae, Tribe 2, Caricae. New York Botanical Garden, Bronx, NY.

Mackenzie, K.K. 1940. North American Cariaceae, 2 vols New York Bot. Garden, Bronx.

Manhart, J.R. 1990. Chemotaxonomy of the genus Carex (Cyperaceae) Canad. J. Bot. 68:1457-1461.

Marcks, B. G. 1972. Population studies in North American Cyperus Section Laxiglumi (Cyperaceae). Ph.D. Disseration. University of Wisconsin, Madison.

Marcks, B. G. 1974. Preliminary reports on the flora of Wisconsin. No. 66. Cyperaceae. II - Sedge family. II. The genus Cyperus-the umbrella sedges. Wisconsin Academy of Sciences, Arts and Letters 62:261-284.

McGivney, M. V. D. P. 1938. A revision of the subgenus Eucyperus found in the United States. Catholic University of America, Biological series 26.

McGivney, Sister M.V. 1941a. A revision of the subgenus Mariscus found in the United States Catholic Univ. Amer., Biol. Ser. 33:1-147.

McGivney, Sister M.V. 1941b. A revision of the subgenus Pycreus found in the United States Catholic Univ. Amer., Biol. Ser. 37:1-68.

Menapace, F. 1991. A revision of the genus Eleocharis (Cyperaceae) section: Maculosae. Ph.D. Disseration. Southern Illinois University at Carbondale.

Menapace, F. J., D. E. Wujeck, and A. A. Reznicek. 1986. A systematic revision of the genus Carex (Cyperaceae) with respect to the section Lupulinae. Canadian Journal of Botany 64:2785-2788.

Mohlenbrock, R. H. and J. Schwegman. 1969. A new species of Carex section Bracteosae. Brittonia 21: 77-79.

Naczi, R. F. C. 1990. The taxonomy of Carex bromoides (Cyperaceae). Contributions from the University Michigan Herbarium 17:215-222.

Naczi, R. F. C. 1992. Systematics of Carex section Griseae (Cyperaceae) (phylogenetic systematics, cytology). Ph.D. Disseration. The University of Michigan, Ann Arbor.

Naczi, R. F. C. and C. T. Bryson. 1990. Noteworthy records of Carex (Cyperaceae) from the southeastern United States. Bartonia 56:49-58.

Naczi, R. F. C., A. A. Reznicek, and B. A. Ford. 1998. Morphological, geographical, and ecological differentiation in the Carex Willdenowii complex (Cyperaceae). American Journal of Botany 85(3): 434-447.

O'neill, H.T. 1940. Botany of the Maya area: The sedges of the Yucatan Peninsula Carnegie Inst. Wash. Publ. No. 19.

Raynal, J. 1976a. Notes Cyperologiques: 26. Le Genre Schoenoplectus. II. L'amphicarpie et la sect. Supini. Adansonia, series 2, 16:119-155.

Raynal, J. 1976b. Notes Cyperologiques: 27. Identification de deux Scleria de Poiret. Adansonia, series 2, 16:211-217.

Rettig, J. H. 1988. A biosystematic study of the Carex pensylvanica group (section Acrosystis) in North America. Ph.D. Disseration. University of Georgia, Athens.

Rettig, J. H. 1989. Nomenclatural changes in the Carex pensylvanica group (section Acrocystis, Cyperaceae) of North America. Sida 13(4):449-452.

Rettig, J. H. 1990. Correct names for the varieties of Carex albicans-C. emmonsii. Sida 14(1):132-133.

Reznicek, A. A. 1990. Evolution in sedges (Carex: Cyperaceae). Canadian Journal of Botany 68:1409-1432.

Reznicek, A. A. and M. S. González-Elizondo. 1995. The Carex lurida group (Cyperaceae) in the Neotropics. Contributions from the University Michigan Herbarium 20: 217-230.

Reznicek, A. A. and P. E. Rothrock. 1997. Carex molestiformis (Cyperaceae), a new species of section Ovales from the Ozark Mountain Region. Contributions of the University of Michigan Herbarium 21:299-308.

Reznicek, A. A. and P. W. Ball. 1980. The taxonomy of Carex section Stellulatae in North America north of México. Contributions from the University Michigan Herbarium 14:153-203.

Reznicek, A. A. and R. F. C. Naczi. 1993. Taxonomic status, ecology, and distribution of Carex hyalina (Cyperaceae). Contributions from the University Michigan Herbarium 19:141-147.

Robinson, E. A. 1964. Notes on Scleria. III. Scleria hirtella Sw. and some allied species: a transatlantic group. Kirkia 4:175-184.

Rolfsmeier, S.B. 1995. Keys and distributional maps for Nebraska Cyperaceae, Part 1: Bulbostylis, Cyperus, Dulichium, Eleocharis, Eriophorum, Fimbristylis, Fuirena, Lipocarpha, and Scirpus Trans. Nebraska Acad. Sci. 22:27-42.

Rothrock, P. E. 1991. The identity of Carex albolutescens, C. festucacea, and C. longii (Cyperaceae). Rhodora 93(873):51-66.

Rothrock, P. E., A. A. Reznicek, and L. R. Ganion. 1997. Taxonomy of the Carex straminea complex (Cyperaceae). Canadian Journal of Botany 75:2177-2195.

Schippers, P, S. J. Ter Borg, J. J. Bos. 1995. A revision of the Infraspecific taxonomy of Cyperus esculentus (yellow nutsedge) with an experimentally evaluated character set. Systematic Botany 20(4):461-481.

Schuyler, A. E. 1966. The taxonomic delineation of Scirpus lineatus and Scirpus pendulus. Notulae Naturae of the Academy of Natural Sciences of Philadelphia 3:1-3.

Schuyler, A. E. 1974. Typification and application of the names Scirpus americana Pers., S. olneyi Gray, and S. pungens Vahl. Rhodora 76(805):51-52.

Schuyler, A.E. 1967. A taxonomic revision of North American leafy species of Scirpus Proc. Acad. Nat. Sci. Philadelphia 119:295-323.

Schweinitz, L. D. von. 1925. A monograph of the North American species of the genus Carex. Annals of the Lyceum of Natural History of New York 1(2):283-373.

Smith, S. G. 1995. New combinations in North American Schoenoplectus, Bolboschoenus, Isolepis, and Trichophorum (Cyperaceae). Novon 5:97-102

Smith, S. G. and G. Yatskievych. 1996. Notes on the genus Scirpus sensu lato in Missouri. Rhodora 98(894): 168-179.

Smith, S.G. 1996. Schoenoplectus Unpublished manuscript of forthcoming Flora of North America treatment.

Smith, S.G. 1997a. Bolboschoenus Unpublished manuscript of forthcoming Flora of North America treatment.

Smith, S.G. 1997b. Isolepis Unpublished manuscript of forthcoming Flora of North America treatment.

Standley, L.A. 1990. Anatomical aspects of the taxonomy of sedges (Carex, Cyperaceae) Canad. J. Bot. 68:1449-1456.

Steudel, E. G. 1855. Synopsis plantarum cyperaceum. J. B. Metzler, Stuttgart, Germany.

Strong, M. T. 1994. New combinations in Schoenoplectus (Cyperaceae). Novon 3:202-203.

Strong, M.T. 1994. Taxonomy of Scirpus, Trichophorum, and Schoenoplectus (Cyperaceae) in Virginia Bartonia 58:29-68.

Svenson, H. K. 1957. Poales; Cyperaceae; Scirpeae (Continuatio): Fuirena Rottb. North American Flora 18(9):505-507. New York Botanical Garden, Bronx, NY.

Svenson, H.K. 1929. Contributions from the Gray Herbarium of Harvard University--No. LXXXVI Monographic studies in the genus Eleocharis, Rhodora 31:121-135, 152-163, 167-191, 199-219, 224-242.

Svenson, H.K. 1939. Monographic studies in the genus Eleocharis--V Rhodora 41:1-19, 43-77, 90-110.

Svenson, H.K. 1953. The Eleocharis obtusa-ovata complex Rhodora 55:1-6.

Thomas, W. W. 1984. The systematics of Rhynchospora section Dichromena. Memoirs of the New York Botanical Garden 37:1-116.

Thomas, W. W. 1992. A synopsis of Rhynchospora (Cyperaceae) in Mesoamerica. Brittonia 44:14-44.

Torrey, J. and W. Hooker. 1836. In. J. Torrey.Monograph of North American Cyperaceae. Annals of the Lyceum of Natural History of New York. Vol. 3.

Tucker, G. C. 1983. The taxonomy of Cyperus (Cyperaceae) in Costa Rica and Panama. Systematic Botany Monograph 2:1-85.

Tucker, G. C. 1984a. Taxonomic notes on two common neotropical species of Cyperus (Cyperaceae). Sida 10:298-307.

Tucker, G. C. 1984b. A revision of Kyllinga Rottb. (Cyperaceae) in Mexico and Central America. Rhodora 86:507-538.

Tucker, G. C. 1985a. The correct name for Cyperus cayennensis (C. flavus) Cyperaceae. Southwestern Naturalist 30:607-608.

Tucker, G. C. 1985b. Cyperus flavicomus, the correct name for Cyperus albomarginatus. Rhodora 87:539-541.

Tucker, G. C. 1987. The genera of Cyperaceae in the southeastern United States. Journal of the Arnold Arboretum 68:361-445.

Tucker, G. C. 1994. Revision of the Mexican species of Cyperus (Cyperaceae). Systematic Botany Monograph 43:1-213.

Watson, F.D. 1985. The nomenclature of pondcypress and baldcypress Taxon 34:506-509.

Webber, J. M. and P. W. Ball. 1984. The taxonomy of the Carex rosea group (section Phaestoglochin) in Canada. Canadian Journal of Botany 62:2058-2073.

Wilson, K. L. 1990. Typification and application of Scirpus geniculatus L. Cyperaceae Newsletter 7:6-8.

Wujek, D. E. and F. J. Menapace. 1986. Taxonomy of Carex section Folliculatae using achene micromorphology. Rhodora 88:399-403.