Plant Biol (Stuttg) 2001; 3(4): 341-350
DOI: 10.1055/s-2001-16467
Original Paper
Georg Thieme Verlag Stuttgart ·New York

Embryology and Seed Development of Paepalanthus sect. Actinocephalus (Koern.) Ruhland (Eriocaulaceae)

V. L. Scatena 1 , F. Bouman 1
  • 1 Instituto de Biociencias, Universidade Estadual Paulista-UNESP, Rio Claro, Brasil
  • 2 Hugo de Vries Laboratory, IBED, Institute for Biodiversity and Ecosystem Dynamics, University of Amsterdam, Amsterdam, The Netherlands
Further Information

Publication History

January 11, 2001

June 8, 2001

Publication Date:
16 August 2001 (online)

Abstract

The embryology and seed structure of Paepalanthus sect. Actinocephalus species were studied. The embryological and structural seed characters fit well with those of the other commelinaceous families. Within the Commelinales sensu Dahlgren, Eriocaulaceae and Xyridaceae represent two embryologically close families. In Paepalanthus sect. Actinocephalus the ovule is orthotropus, bitegmic, and tenuicellate with a micropyle formed by the inner integument. The seeds are endotestal. The outer cell layer of the testa and the outer periclinal wall of the endotesta disintegrate during development. The endotegmen is tanniniferous. The outer layer of the tegmen becomes compressed and is no longer recognizable in the mature seed. The seeds are operculate.

References

  • 01 Arekal,  G. D., and Ramaswamy,  S. N.. (1968);  Megasporogenesis and development of the female gametophyte in Eriocaulon mysorense. .  Proc. Indian Sci. Congr. Hyderabad. 3 338
  • 02 Arekal,  G. D., and Ramaswamy,  S. N.. (1980);  Embryology of Eriocaulon hookerianum and the systematic position of Eriocaulaceae.  Bot. Notiser. 133 295-309
  • 03 Begum,  M.. (1968);  Embryological studies in Eriocaulon quinquangulare. .  Proc. Indian Acad. Sci.. B 67 148-156
  • 04 Carlquist,  S.. (1960);  Anatomy of Guayana Xyridaceae: Abolboda, Orectante, and Achlyphila. .  Mem. N. Y. Bot. Gard.. 10 65-117
  • 05 Dahlgren,  R. M. T., and Clifford,  H. T.. (1982) The Monocotyledons: a comparative study. London; Academic Press p. 378
  • 06 Dahlgren,  R. M. T.,, Clifford,  H. T.,, and Yeo,  P. F.. (1985) The families of the Monocotyledons. Berlin; Springer p. 520
  • 07 Davis,  G. L.. (1966) Systematic embryology of the Angiosperms. New York; John Wiley & Sons p. 528
  • 08 Feder,  N., and O'Brien,  T. P.. (1968);  Plant microtechnique: some principles and new methods.  Amer. J. of Bot.. 55 123-142
  • 09 French,  J. C.. (1985 a);  Patterns of endothecial wall thickenings in Araceae: subfamilies Pothoideae and Monsteroideae.  Amer. J. Bot.. 72 472-486
  • 10 French,  J. C.. (1985 b);  Patterns of endothecial wall thickenings in Araceae: subfamilies Calloideae, Lasioideae, and Philodendroideae.  Amer. J. Bot.. 146 521-533
  • 11 French,  J. C.. (1986);  Patterns of endothecial wall thickenings in Araceae: subfamilies Colocasioideae, Aroideae, and Pistioideae.  Amer. J. Bot.. 147 166-179
  • 12 Giulietti,  A. M.,, Monteiro,  W. R.,, Mayo,  S.,, and Stephens,  J.. (1988);  A preliminary survey of testa sculpture in Eriocaulaceae.  Beitr. Biol. Pflanzen. 62 189-209
  • 13 Giulietti,  A. M., and Hensold,  N.. (1990);  Padrões de distribuição geográfica dos gêneros de Eriocaulaceae.  Acta bot. Bras.. 4 133-159
  • 14 Giulietti,  A. M.,, Amaral,  M. C.,, and Bittrich,  V.. (1995);  Phylogenetic analysis of inter- and infrageneric relationships of Leiothrix Ruhland (Eriocaulaceae).  Kew Bull.. 50 55-71
  • 15 Giulietti,  A. M.,, Scatena,  V. L.,, Sano,  P. T.,, Parra,  L.,, Queiroz,  L. P.,, Harley,  R. M.,, Menezes,  N. L.,, Ysepon,  A. M. B.,, Salatino,  A.,, Salatino,  M. L.,, Vilegas,  V.,, Santos,  L. C.,, Ricci,  C. V.,, Bonfim,  M. C. P.,, and Miranda,  E. B.. (2000) Multidisciplinary studies on neotropical Eriocaulaceae. Systematics and evolution of monocots. Wilson, K. L. and Morrison, D., eds. Sydney:; Csiro Publishing pp. 580-589
  • 16 Graven,  P.,, Koster,  C. G.,, Boon,  J. J.,, and Bouman,  F.. (1996);  Structure and macromolecular composition of the seed coat of the Musaceae.  Ann. Bot.. 77 105-122
  • 17 Grootjen,  C. J., and Bouman,  F.. (1981);  Development of ovule and seed in Stanfieldiella imperforata (Commelinaceae).  Acta Bot. Neerl.. 30 265-275
  • 18 Grootjen,  C. J.. (1983);  Development of ovule and seed in Marantaceae.  Acta Bot. Neerl.. 32 69-86
  • 19 Grootjen,  C. J., and Bouman,  F.. (1988);  Seed structure in Cannaceae: taxonomic and ecological implications.  Ann. Bot.. 61 363-371
  • 20 Johri,  B. M.,, Ambegaokar,  K. B.,, and Srivastava,  P. S.. (1992) Comparative embryology of angiosperms. Berlin; Springer-Verlag p. 1221
  • 21 Krauss,  J. E.,, Scatena,  V. L.,, Lewinger,  M. E.,, and Trench,  K. U. S.,. (1996);  Morpologia externa e interna de quatro especies de Paepalanthus Kunth (Eriocaulaceae) em desenvolvimento pos-seminal.  Bolm. Botanica, Univ. S. Paulo. 15 45-53
  • 22 Manning,  J. C., and Linder,  H. P.. (1990);  Cladistic analysis of patterns of endothecial thickenings in the Poales/Restionales.  Amer. J. Bot.. 77 196-210
  • 23 Monteiro-Scanavacca,  W. R., and Mazzoni,  S. C.. (1978);  Embryological studies in Leiothrix fluitans (Eriocaulaceae).  Revista. brasil. Bot.. 1 59-64
  • 24 Patel,  C. M., and Patel,  D. S.. (1964);  The morphological and embryological studies in Eriocaulon cinerianum. .  J. Gujrat Univ.. 7 58-70
  • 25 Ramaswamy,  S. N., and Arekal,  G. D.. (1981 a);  Embryology of Eriocaulon setaceum (Eriocaulaceae).  Plant Syst. Evol.. 138 175-188
  • 26 Ramaswamy,  S. N., and Arekal,  G. D.. (1981 b);  Is there a proliferation of antipodal cells in Leiothrix (Eriocaulaceae)?.  Curr. Sci.. 50 382-383
  • 27 Ramaswamy,  S. N., and Arekal,  G. D.. (1981 c);  The development of male and female gametophytes in two Indian species of Eriocaulon. .  Proc. Indian Natl. Sci. Acad.. B 47 682-693
  • 28 Ramaswamy,  S. N., and Arekal,  G. D.. (1982 a);  On the embryology of three taxa of Paepalanthoideae (Eriocaulaceae).  Ann. Bot.. 49 99-102
  • 29 Ramaswamy,  S. N., and Arekal,  G. D.. (1982 b);  Embryology of Eriocaulon xeranthemum (Eriocaulaceae).  Acta Bot. Neerl.. 31 41-54
  • 30 Ramaswamy,  S. N.,, Swamy,  B. G. L.,, and Arekal,  G. D.. (1981);  From zygote to seedling in Eriocaulon robusto-brownianum (Eriocaulaceae).  Beitr. Biol. Pflanzen. 55 179-188
  • 31 Ramaswamy,  S. N., and Nagendran,  C. R.. (1996);  Embryology of Syngonanthus nitens var. nitens (Eriocaulaceae).  S. Afr. J. Bot.. 62 173-177
  • 32 Rudall,  P. J., and Sajo,  M. G.. (1999);  Systematic position of Xyris: flower and seed anatomy.  Int. J. Plant Sci.. 160 795-808
  • 33 Sano,  P. T.. (1999) Revisão de Actinocephalus (Koern.) Sano Eriocaulaceae.  São Paulo. Brasil; Tese de Doutorado, Instituto de Biociências da Universidade de São Paulo
  • 34 Scatena,  V. L.,, Menezes,  N. L.,, and Stützel,  T.. (1993);  Embryology and seedling development in Syngonanthus rufipes (Eriocaulaceae).  Beitr. Biol. Pflanzen. 67 333-343
  • 35 Scatena,  V. L.,, Lemos-Filho,  J. P.,, and Lima,  A. A. A.. (1996);  Morfologia do desenvolvimento pós-seminal de Syngonanthus elegans e S. niveus (Eriocaulaceae).  Acta bot. bras.. 10 85-91
  • 36 Smith,  W. R.. (1910);  The floral development and embryology of Eriocaulon septangulare. .  Bot. Gaz.. 49 281-289
  • 37 Stützel,  T.. (1998) Monocotyledons: Alismatanae and Commelinanae (except Gramineae) IV vol. Flowering Plants: The families and genera of vascular plants. Kubitzki, K., ed. Berlin; Springer-Verlag pp. 197-207
  • 38 Swamy,  B. G. L., and Krishnamurthy,  K. V.. (1970);  On the so-called endothelium in the monocotyledons.  Phytomorphology. 20 262-269
  • 39 Takhtajan,  A.. (1985) Anatomia seminum comparativa. Tomus I. Liliopsida sensu Monocotyledones. Leningrad; Nauka p. 317
  • 40 Tiemann,  A.. (1985);  Untersuchungen zur Embryologie, Blütenmorphologie und Systematik der Rapateaceen und der Xyridaceen-Gattung Abolboda (Monocotyledoneae).  Diss. Bot.. 82 1-201
  • 41 Venturelli,  M., and Bouman,  F.. (1986);  Embryology and seed development in Mayaca fluviatilis (Mayacaceae).  Acta Bot. Neerl.. 35 497-516
  • 42 Venturelli,  M., and Bouman,  F.. (1988);  Development of ovule and seed in Rapateaceae.  Bot. J. Linn. Soc.. 97 267-294
  • 43 Werker,  E.. (1997) Se Paepalanthus sect. Actinocephalus ed anatomy. Handbuch der Pflanzenanatomie, Band 10, Teil, 3. Berlin; Borntraeger p. 424

V. L. Scatena

Instituto de Biociencias
Universidade Estadual Paulista-UNESP

Caixa Postal 199
13506-900 Rio Claro, SP
Brasil

Email: VSCATENA@RC.UNESP.BR

Section Editor: A. M. C. Emons

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