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Taxonomic significance of seed morphology in the genus Mollugo s.l. (Molluginaceae)

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ABSTRACTThe genus Mollugo L. comprises ca. 35 species distributed throughout the tropics, and it is clearly polyphyletic. The seed morphology and ornamentation of 27 Mollugo representatives is studied with regard to their significance for systematics and taxon delimitation. The species belonging to the “M. cerviana” and “M. fragilis” groups, as well as M. tenella, are characterized by D-shaped or roundish seeds, whereas other taxa have reniform seeds. The seed ornamentation can be considered to be one of the most valuable characters for disentangling the taxonomic diversity in the genus. Mollugo cerviana shares the same reticulate ornamentation with M. namaquensis, M. pusilla, M. tenella and M. tenuissima, while the smooth surface is peculiar to M. fragilis, M. spathulata and M. walteri. The close relationship of M. fragilis and relatives to Hypertelis spergulacea is carpologically supported. Some taxa share a papillate ornamentation (M. decandra, M. floriana, M. molluginis, M. nudicaulis, M. pentaphylla, M. pentaphylla var. rupestris), but this character appears to be a homoplasy in the light of existing molecular phylogeny. The “Mollugo nudicaulis” group (M. angustifolia, M. cuneifolia, M. decandra, M. nudicaulis s.str., M. nudicaulis var. navassensis) as well as M. molluginis from the “M. pentaphylla” group have foveolate cell boundaries. Seed ornamentation can be an additional character supporting reinstatement at species rank of the forgotten New Caledonian taxon M. digyna, as well as Caribbean M. nudicaulis var. navassensis. Mollugo pentaphylla and M. verticillata are found not to be uniform in seed characters. The endemics of the Galapagos archipelago that have been studied (M. flavescens, M. floriana, M. gracillima, M. snodgrassii) differ in their ornamentation from M. verticillata. Mollugo tenella is distinguished from all other species in having short, trichome-like depositions of epicuticular wax on the seed surface. The discovered carpological characters can be important for the delimitation and taxonomy of different Mollugo groups.

Affiliations: 1: Department of Higher Plants, Biological Faculty, Lomonosov Moscow State University suchor@mail.ru ; 2: Department of Plant Physiology, Biological Faculty, Lomonosov Moscow State University

10.1080/07929978.2016.1249137
/content/journals/10.1080/07929978.2016.1249137
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1. Adamson RS. 1958. "The South African species of Aizoaceae. IV. Mollugo, Pharnaceum, Coelanthum, and Hypertelis". J S Afr Bot. Vol 24:1165.
2. Andersson NJ. 1855. "Om Galapagos-öarnes vegetation". Kongliga Vetenskaps-Akademiens Handlingar [ser. 3]. Vol 41:61256.
3. Bhargava HR. 1934. "Contribution to the morphology of Mollugo nudicaulis, Lamk". Proc Indian Ac Sci (sect. B). Vol 1(6):271278.
4. Boetsch JR. 2002. "The Aizoaceae and Molluginaceae of the southeastern United States". Castanea. Vol 67(1):4253.
5. Bogle AL. 1970. "The genera of Molluginaceae and Aizoaceae in the southeastern United States". J Arnold Arbor. Vol 51:431462. [Crossref]
6. Christenhusz MJM,, Brockington SF,, Christin P-A,, Sage RF. 2014. "On the disintegration of Molluginaceae: a new genus and family (Kewa, Kewaceae) segregated from Hypertelis, and placement of Macarthuria in Macarthuriaceae". Phytotaxa. Vol 181(4):238242. http://dx.doi.org/10.11646/phytotaxa.181.4.4 [Crossref]
7. Christin P-A,, Sage TL,, Edwards EJ,, Ogburn RM,, Khoshravesh R,, Sage RG. 2011. "Complex evolutionary transitions and the significance of C3–C4 intermediate forms of photosynthesis in Molluginaceae". Evolution. Vol 65:643660. http://dx.doi.org/10.1111/j.1558-5646.2010.01168.x [Crossref]
8. Conçalves ML., 1970. "Aizoaceae s.l. (incl. Molluginaceae)". In: Exell AW,, Fernandes A,, Mendes EJ, editors. Conspectus florae Angolensis. Rosaceae-Alangiaceae, vol. 4. Lisboa: Oficinas gráficas da Imprimarte; p. 302333.
9. Ekman EL. 1929. "Plants of Navassa Island, West Indies". Arkiv Bot. Vol 22A(16):1106.
10. Eliasson U., 1971. "Molluginaceae". In: Wiggins II,, Porter DM, editors. Flora of the Galapagos Islands. Stanford, CA: Stanford University Press; p. 217222.
11. Endress ME,, Bittrich V,. 1993. "Molluginaceae". In: Kubitzki F,, Rohwer JG,, Bittrich V, editors. The families and genera of vascular plants, vol. 2: Flowering plants, Dicotyledons: Magnoliid, Hamamelid and Caryophyllid families. New York: Springer; p. 419426.
12. Febulaus GNV,, Pullaiah T. 1990. "Embryology of Mollugo pentaphylla L". Taiwania. Vol 35:253258.
13. Fenzl E. 1836. "Monographie der Mollugineen und Steudelieen, zweier Unterabteilungen der Familie der Portulacaceen". Ann Wiener Mus Naturgesch. Vol 1:337384.
14. Friedrich H-C., 1966. "Molluginaceae". In: Merxmüller H, editor. Prodromus einer Flora von Südwestafrika 26. München: Cramer Verlag; p. 121.
15. Funk V,, Hollowell T,, Berry P,, Kelloff C,, Alexander SN. 2007. "Checklist of the plants of the Guiana Shield (Venezuela: Amazonas, Bolivar, Delta Amacuro; Guyana, Surinam, French Guiana)". Smithsonian Inst (Contrib US Nat Herb). Vol 55:1584.
16. Gilbert MG,, Thulin M. 1993. "A new species of Mollugo (Molluginaceae) from Somalia". Nordic J Bot. Vol 13:169170. http://dx.doi.org/10.1111/j.1756-1051.1993.tb00031.x [Crossref]
17. Grisebach A. 1866. Catalogus plantarum cubensium exhibens collectionem Wrightianam aliasque minores ex insula Cuba missas. Lipse: Gulielmum Engelmann.
18. Guillaumin A. 1948. Flore analitique et synoptique de la Nouvelle-Caledonie phanerogames. Paris: Office de la recherché scientifique coloniale.
19. Hassan NMS,, Meve U,, Liede-Schumann S. 2005. "Seed coat morphology of Aizoaceae-Sesuvioideae, Gisekiaceae and Molluginaceae and its systematic significance". Bot J Linn Soc. Vol 148:189206. http://dx.doi.org/10.1111/j.1095-8339.2005.00407.x [Crossref]
20. Hofmann U. 1973. "Morphologische Untersuchungen zur Umgrenzung und Gliederung der Aizoaceen (Centrospermen-Studien 6)". Bot Jahrb Syst. Vol 93:247324.
21. Howell JT. 1933. "The genus Mollugo in the Galapagos Islands". Proc California Ac Sci, ser. 4. Vol 21(3):1323.
22. Hutchinson JL,, Dalziel J. 1927. Flora of West Tropical Africa, vol. 1. London: Crown agents.
23. Jaffré T,, Morat Ph,, Veillon J-M,, Rigault F,, Dagostini G. 2001. Composition and characteristics of the native flora of New Caledonia. Noumea: Centre IRD de Noumea.
24. Jeffrey C., 1961. "Aizoaceae (incl. Molluginaceae)". In: Hubbard CE,. Milne-Redhead E, editors. Flora of Tropical East Africa. London: Crown Agents.
25. Kennedy RA,, Laetsch WM. 1974. "Plant species intermediate for C3, C4 photosynthesis". Nature. Vol 184:10871089.
26. Lu D,, Hartmann HEK,. 2003. "Molluginaceae". In: Wu Z,, Raven PH, editors. Flora of China, vol 5: Ulmaceae–Basellaceae. St. Louis: Missouri Bot. Garden Press; p. 437439.
27. Netolitzky F., 1926. "Anatomie der Angiospermen-Samen". In: Linsbauer K, editor. Handbuch der Pflanzenanatomie, vol.10. Berlin: Bornträger.
28. Ocampo G. 2013. "Morphological characterization of seeds in Portulacaceae". Phytotaxa. Vol 141(1):124. http://dx.doi.org/10.11646/phytotaxa.141.1.1 [Crossref]
29. Ocampo G. 2015. "Systematic implications of seed morphological diversity in Portulacaceae (Caryophyllales)". Pl Syst Evol. Vol 301:12151226. http://dx.doi.org/10.1007/s00606-014-1146-1 [Crossref]
30. Pax F., 1889. "Aizoaceae (incl. Molluginaceae)". In: Engler A,, Prantl K, editors. Die Natürlichen Pflanzenfamilien, Teil 3, 1b. Leipzig: Engelmann; p. 3351.
31. Plisko MA., 1991. "Molluginaceae". In: Takhtajan AL, editor. Anatomia seminum comparativa, vol 3. Leningrad: Nauka; p. 2427.
32. Sage RF. 2004. "The evolution of C4 photosynthesis". New Phytol. Vol 161:341370. http://dx.doi.org/10.1111/j.1469-8137.2004.00974.x [Crossref]
33. Sage RF,, Christin P-A,, Edwards EJ. 2011. "The C4 plant lineages of planet Earth". J Exp Bot Vol 62(9):31553169. http://dx.doi.org/10.1093/jxb/err048 [Crossref]
34. Sayre RT,, Kennedy RA. 1977. "Ecotypic differences in the C3 and C4 activity in Mollugo verticillata, a C3–C4 intermediate". Planta. Vol 134:257262. [Crossref]
35. Seringe NC., 1824. "Caryophylleae". In: De Candolle A, editor. Prodromus systematis naturalis regni vegetabilis, vol. 1. Paris: Treuttel & Würtz; p. 351422.
36. Sivarajan VV,, Usha T. 1983. "On reinstating Mollugo stricta L. (Molluginaceae)". Taxon. Vol 32(1):123126. [Crossref]
37. Sivarajan VV,, Gopinathan MC. 1985. "Seedcoat micromorphology of Caryophyllales: observations of some Molluginaceae". Proc Indian Ac Sci (Plant Sci). Vol 94(1):5157.
38. Sukhorukov AP,, Kushunina MA. 2015. "Taxonomy and chorology of Corbichonia (Lophiocarpaceae s.l.) with further description of a new species from Southern Africa". Phytotaxa. Vol 218(3):227240. http://dx.doi.org/10.11646/phytotaxa.218.3.2 [Crossref]
39. Sukhorukov AP,, Mavrodiev EV,, Struwig M,, Nilova MV,, Dzhalilova KK,, Balandin SA,, Erst A,, Krinitsyna AA. 2015. "One-seeded fruits in the core Caryophyllales: their origin and structural diversity". Plos One. Vol 10(2): e0117974. http://dx.doi.org/10.1371/journal.pone.0117974 [Crossref]
40. Sukhorukov AP,, Kushunina MA. 2016. "Taxonomic revision and distribution of herbaceous Paramollugo (Molluginaceae) in the Eastern Hemisphere". Phytokeys Vol 73:93116. http://dx.doi.org/10.3897/phytokeys.73.10365 [Crossref]
41. Thiers B. 2015. "Index Herbariorum: a global directory of public herbaria and associated staff". New York Botanical Garden's Virtual Herbarium. Available from: http://sweetgum.nybg.org/ih/ (accessed April 15, 2016)
42. Thulin M,, Harley RM. 2015. "Mollugo brasiliensis sp. nov. (Molluginaceae) from eastern Brazil". Nordic J Bot. Vol 33:175177. http://dx.doi.org/10.1111/njb.00621 [Crossref]
43. Thulin M,, Moore AJ,, El-Seedi H,, Larsson A,, Christin P-A,, Edwards EJ. 2016. "Phylogeny and generic delimitation in Molluginaceae, new pigment data in Caryophyllales, and the new family Corbichoniaceae". Taxon Vol 65(4):775793. [Crossref]
44. Vincent MA., 2003. "Molluginaceae". In: Flora of North America Editorial Committee, editors. Flora of North America, North of Mexico, vol 4. New York & Oxford: Oxford University Press; p. 509512.
45. Wallace RS. 1987. "Seed characters, biogeography, and systematics of the genus Mollugo L. (Molluginaceae)". Am J Bot. Vol 74:763763.
46. Wilson P., 1932. "Tetragoniaceae (incl. Molluginaceae & Aizoaceae)". In: Wilson P,, Rydberg PA, editors. North American Flora: Chenopodiales, vol. 21. New York: New York Bot. Garden; p. 267277.
47. Wunderlich R. 1967. "Some remarks on the taxonomic significance of the seed coat". Phytomorphology. Vol 17:301311.
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2017-07-17
2018-05-24

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