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Shorter Notes Record First of Pellaea ovata (Pteridaceae) from Brazil.—According to the monograph of Pellaea sect. Pellaea by Alice Tryon (Ann. Missouri Bot. Gard. 44:125-193. members 1957], the of this section (about 10 species) occur primarily in the southwestern United and Mexico and and States four species their varieties [P. ternifolia Cav., P. ovata (Desv.) Weath., P. sagittata (Cav.) and Link, P. myrtillifolia Mett. ex Kuhn) are also distributed along the Andes, reaching Argentina and only one to Chile; species occurs in Africa (P. rufa A.F. Tryon]. Alice Tryon commented Hicken (I.e.) also that (Soc. Arg. Cienc. Nat. had 13:206. 1916] reported P. ternifolia from Minas Gerais, Brazil, but she had not seen material of this species from Brazil during the revision of group. this Subsequent authors such as Sota (in Cabrera, Fl. Prov. Jujuy Rep. Argentina 13:109-111. Tryon and 1977], Stolze (Fieldiana, 22:2-83. Bot., n.s. 1989], Murillo-Pulido and Harker-Useche (Helechos Afines Col.:158-159. y Pi. 1990], Moran Yatskievych and {in Riba, Meso. 1:136-137. Arbelaez Fl. 1995], (in and Jorgensen Leon-Yanez, Monogr. Syst. Bot. Missouri Bot. Gard. 75:168-176. Prado Hokche Nuevo 1999], (in et al, Cat. Fl. Vase. Venez.:162. 2008], and Ponce Zuloaga Monogr. et al. (in et Syst. Bot. Missouri Bot. Card. 107:161. al., confirmed 2008] also this pattern of distribution of these four Pellaea species Andean along the and Prado and Cordillera, Sylvestre Forzza (in et al., Cat. Pi. and Fungi of Brazil, 1:557-558. 2010] corroborated absence their in Brazil. However, work recently, in 2010, the author, during Master first field for his found thesis, a population of Pellaea ovata growing mountains in the in the center of the state of Sao Paulo, more precisely in the Municipality of Pavuna Botucatu, Farm, trail to the waterfall, 22 50'15"S, 48 30'40"W, 750 m, 13 Jan 2010, Biral Gomes 511 (BHCB, HRCB, 2011 we same Er SP]. In visited the population of this species and another sample was Pavuna Farm, collected: km Road Marechal Rondon (SP 300], 259, between Botucatu and Sao Manuel, May 22 50'S, 48 30'W, 600 m, 6 2011, Prado 2143 (DUKE, HRCB, MO, et al. NY, P, SP, UC]. Pellaea ovata belongs to the Section Pellaea and can be it easily recognized by the scandent habit, creeping and dichotomously branched rhizomes, flexuous and pubescent and rachises, stalked ovate to cordate segments, and lamina glabrous on both Our two surfaces (Fig. collections 1]. represent the record of ovata from first P. Brazil. Pellaea ovata is distributed from the southern United States (Turner et al. Atlas Vase. Texas, PI. v.2, Sida, Bot. Misc., 666. 2003] to Argentina, pg. including Central America and Hispaniola (Tryon At Pavuna the Farm, I.e.]. among grows and Aechmea it grasses at the bases of distichantha Lem. and (Bromeliaceae] Praecereus euchlorus Weber] (F.A.C. N.P. Taylor (Cacta- The Pavuna Farm encompasses ceae]. the largest fragment of the "Mata da Pavuna" and occupies an area of 378.49 ha at an elevation of 600-761 m. The relief is steep, with slopes between 30 -90 of inclination, and soils that are and shallow, sandy. There two dry, are distinct climatic seasons in this region, AMERICAN FERN VOLUME NUMBER JOURNAL: 102 (2012) 1 summer the rainy and dry winter. Average monthly temperatures range from 12.4 C (September) to 28.1 C (January) and mean monthly from rainfall mm mm 270.15 (January) to 27.92 (August) (data graciously provided by the Farm Meteorological Station of Experimental Sao Manuel, Faculdade de SHORTER NOTES Ciencias Agrarias, University of Sao Paulo Botucatu, The State, SP, Brazil). main vegetation in the area semideciduous is forest non-Atlantic forest) (i.e., and on the tops of the slopes there are some xerophitic elements among rocks, Aechmea such as distichantha, Praecereus euchlorus and Cereus hildmannia- nus Schum. K. (Cactaceae). This area belongs to the "Residual Pleistocenic Seasonal Formations Arc" in South America (Prado and Gibbs, Ann. Missouri Bot. Gard. 80:902-927. According nowadays 1993). to these authors, this arc contains remnants of the dry vegetation of that time, including the genera noted above. The arborescent component of the slopes in this area is dominated by Aspidosperma riedelii Miill. Arg. (Apocynaceae), a species by Prado and cited Gibbs as typical of dry seasonal South (I.e.) forests of America. Pellaea ovata can be added here another example as of a relictual element, because its distribution is coincident with this dry arc, especially along the line of latitudes between 15=-28"S, between Bolivia (Chuquisaca, La Paz, Tarija, Cochabamba), Argentina (Catamarca, and Tucuman), and Salta Brazil (Sao Paulo). It is also cited as occurring in dry vegetation in Ecuador (Wiggins, Amer. Fern 36(l):l-7. 1946). J. This note one is of the results of the project "Vascular flora of 'Mata da Pavuna', Botucatu, SP, Brazil" developed by the author and A. first Julio Lombardi, and was supported by The National Council and for Scientific We Technological Development (CNPq). thank Souza Klei preparing for the drawings.— Leonardo Universidade Biral, Estadual Paulista de Mesquita "Julio Filho", de CEP Instituto Biociencias, Depto. de Botanica, 13506-900, Rio Claro, and SP, Brazil, Jefferson Prado, Instituto de Botanica, Herbario SP, Av. Miguel CEP Stefano, 3687, 04301-012 Sao Paulo, SP, Brazil.