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Shorter Notes New Fern Records for the State of Zacatecas and San Luis Mexico.— Potosi, Based on made we recent collections in the last two years, have found two species that are recorded for the first time from the states of Zacatecas and San Luis Potosi, Mexico. Our taxonomic and distributional standard has been the Mexican New pteridoflora by Mickel and Smith (Mem. York Card. 88:686- Bot. which 692. 2004), includes both a general range statement and the state-level distribution of each taxon based on cited voucher specimens. Mickel and Smith (2004) treated eight species of the genus Woodsia as occurring in Mexico. The genus widely distributed in north temperate is regions and higher elevations in the tropics. Woodsia phillipsii Windham was known New previously from Arizona, Mexico and Texas in USA, and widely is distributed Mexico, from in Baja California Norte, Baja California Sur, Chihuahua, Coahuila, Durango, Mexico, Michoacan and Jalisco, Sonera, but has not been documented previously from Zacatecas. This species characterized by stramineous narrowly is stipe bases, linear to oblong blades, translucent projections on pinnule margins mostly multicellu- form lar, often to filaments, indusial lobes filamentous most of their length and far exceeding the sporangia and 7-18 pairs of pinnules. Our specimens match the description except which 45-50 for the spores, are \im bigger than those described. Mickel and Smith (2004) discuss these plants with larger spores as possible allotetraploid hybrids. The voucher specimens Woodsia of the population were phillipsii collected km Municipio at Jerez de Garcia Sahnas, 2 from El Cargadero Dam, 22 43'N, W 103 06' {Pacheco et al, 3843 UAMIZ; Perez-JaramiUo 55 UAMIZ). The et al. plants were growing in secondary Quercus 2331 m. The forest population at occupies a small area, but the plants are abundant. On the other hand, Didymoglossum known petersii (A. Gray) Copel. from is southeastern United States to Costa Rica, but in Mexico has only been reported from Chiapas, Puebla and The documented Veracruz. distribution likely is biased because of the small size of the plants that has resulted in under collection of the species by botanists. Frequently grows on the walls of it calcareous sinkholes 1400-2200 m. at Didymoglossum Didymoglossum petersii is related to ovale E. Fourn. in its small size, the lack of submarginal veins and the presence of marginal stellate but hairs, differs in lack of dark involucral margins. its Didymoglossum was petersii discovered in San Luis Municipio Potosi, Xilitla, Manantial de San Antonio, 21 22'N, 99 OO'W [Pacheco 3886 et al., UAMIZ; Sanchez-Morales et 244 UAMIZ). The tiny plants were growing al. as trunk epiphytes on the north side of the stream wet montane in forests at m.— 1140 Leticia Pacheco and Andres SAnchez-Morales, Universidad Auton- oma Metropolitana-Iztapalapa, Depto. de Biologfa, Area de Botanica Estruc- tural y Sistematica Vegetal. Apdo. Postal 55-535, 09340 Mexico, D. Mexico. F.,