Anatomy of the sporophyte of Doryopteris lorentzii (Hieron.) Diels (Pteridaceae)
Keywords:
Doryopteris lorentzii, sporophyte, anatomy, glandular trichomes, stomataAbstract
Terán, Guillermo; Analía Benavidez; Marcela Hernández. 2009. “Anatomy of the sporophyte of Doryopteris lorentzii (Hieron.) Diels (Pteridaceae)”. Lilloa 46 (1-2). The genus Doryopteris is represented in Argentina by 7 species, 5 of which are found in the province of Tucumán, in the pedemonte, subtropical montane forests, and upper montane woods, between 500 y 2400 m.s.n.m. This fern was studied in the frame of the Project Pteridaceae, which is proposed the anatomic characterization of the sporophyte of the species which are growing in the province of Tucumán. The material was collected at El Sunchal and Río Cajón, Burruyacu Depar tment, Tucumán. Reference samples were deposited in LIL. Conventional anatomic techniques were used. The stomatic and trichome index, size of stomata and trichomes were numerically calculated. For the first time the sporophyte anatomy was studied. The presence of trichomes in lamina and petiolo were described. The results showed that this species is hipostomatic, and that it presents 3 types of stomata, polocytic, anisocytic and diacytic, 50,22 µm x 38,91 µm, Stomatic index 8,86. Glandular trichomes with an unicelular foot and a head in the petiole, as well as the blade, were reported. The petiole showed differences in the distribution of the tissue along its length.
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References
Cartaginese, M.S. 1977. Revisión del género Doryopteris en Argentina. Revista Mus. Argent. Cienc. nat. Bernardino Rivadavia 5 (5): 105-132.
D’Ambrogio de Argüeso, A. (ed.). 1986. Manual de técnicas en Histología Vegetal. pp. 52. Hemisferio Sur. Buenos Aires.
Dizeo de Strittmater, C. 1973. Nueva técnica de diafanización. Bol. Soc. Argent. Bot., 15 (1): 126-129.
Dizeo de Strittmater, C. 1980. Coloración con violeta de cresyl. Bol. Soc. Argent. Bot., 19 (1-2): 273-276.
Foster, A. 1934. The use of Tannic acid and iron chlorid for staining cell walls in meristematic tissue. Stain. technol. 9:91-92.
Hernández, M. y Albornoz, P. 2001. Mor fología y anatomía foliar en especies de Cheilanthes (Pteridaceae) del noroeste argentino. Lilloa 40 (2): 187-207.
Johansen, D. A. 1940. Plant microtechnique: Mc Graw Hill, N.Y. London.
Metcalfe, C. R. & L. Chalk. 1972. Anatomy of the Dicotiledons, Leaves, stem, and wood in relation to taxonomy with notes. Oxford University Press.
Moran, R. C. 2003. Los helechos y licofitas neotropicales. Una guía para estudiantes. Organización para Estudios Tropicales.
Pichi Sermolli & M. P Bizarri, 2005. A revision of Raddi’s pteridological collection from Brazil (1817-1818). Centro Studi Erbario Tropicale, Universita di Firenze. 100: 217-251.
Ponce, M.M.1996. Pteridaceae, en Zuloaga, F.O. y O. Morrone (eds.), Catálogo de las plantas vasculares de la República Argentina 1, Monogr. Syst. Bot. Missouri Bot. Gard. 60: 44-56.
Salisbury, E. J. 1927. On the causes and Ecological Significance of Stomatal Frecuency with Special Reference to The Woodland Flora. Rg. Soc. London 216 (II): 1-65.
Sota de la, E. R. 1972. Sinopsis de las Pteridophytas del Noroeste de Argentina I. Darwiniana 17: 11-103.
Sota de la, E. R. 1977 Pteridophyta. En: A. Cabrera (ed.). Flora de la Provincia de Jujuy. R.A. Col. Cientif. INTA, Bs As. Tomo 13 (2): 2-275.
Sota de la, E. R.; M. Ponce; O. G. Martinez; G. E. Giudice y G. I. Michelena. 2001. Pteridaceae Rchb.En: J.L. Novara (dir.) Flora Valle Lerma. Ap. Bot. Salta. Ser. Flora 6 (9): 1-48.
Tryon, R. M. 1942. A revision of the genus Doryopteris, Cont. Gray Herb., Harv. Univ. 143: 1-80.
Tryon, R. M. & A. F. Tryon. 1982. Ferns and Allied Plants with Special Reference to Tropical America. Springer-Verlag. New York. 293-302.
Van Cotthem, W. R. J. 1970. A classification of stomatal types. Bot. J. Linn. Soc., 63: 235-246.
