149 



Seaton published and described in Contributions from the United States National 

 Herbarium' as Xotkolaentt nealleyi, and in February, 1891, I published in the Botan- 

 ical Gazette some observations ou the same in comparison with Pringle's No. 1864, 

 from near Guadalajara, Mexico, 1888, in which I referred the latter to A T . nealleyi as 

 variety mexicana. Subsequently Dr. Underwood established the identity of Nealley's 

 plant with Schaffner's, and the above result was published in my notes on Prinze's 

 ferns in Garden and Forest.- I am not sure now that it is best to maintain the 

 variety, although the characters which I pointed out in the Botanical Gazette seem- 

 ingly continue to hold good, and the specimens which Dr. Rose has collected are 

 tine examples of the form. 

 Notholaena sinuata Kaulf. Ennm. 135. 1821. 



On the road between Colotluu and Bolafios, Jalisco, September 7 to 9 (No. 2824). 



PELLAEA. 



Pellaea angustifolia (H. B. K.) Baker, Syn. Fil. 150. 1808. Allosonts angustifolins 

 Presl, Tent. Pterid. 152. 1836. Cheilantlien angustifolia H. B. K. Nov. Gen. et 

 Sp.l: 21. 1815. 



Near Santa Teresa, August 12 (No. 3416); Dolores, August 6 (No. 3366). Bits in 

 envelope are part this, and part No. 1808 (P. rigida). Above Colomas, foothills of 

 Sierra Madre, State of Sinaloa, July 19, form approaching variety omeata Baker 

 (Cheilanthes cuneata Link) (No. 1809, a and b). Also Santa Teresa, August 12 (No. 

 2211 iu part, and in part specimens by me marked a, b, and c), the form P. marginata 

 pyramidalix Baker. 



The series shows much variation and is an unusually interesting one. 

 Pellaea cordata (Cav.) J. Smith, Cat. Kew Ferns, 4. 1845. Pterin eordata Cav. 

 Prael. 1801: No. 662. 1801. Allosorus cordalu* Presl, Tent. -Pterid. 153. 1836. 



Near Plateado, Zacatecas, September 4 (No. 2795). 



The specimens show considerable variation in the shape of the pinnules, some of 

 the younger ones being distinctly cordate, aud older ones more like variety sagittata. 

 Pellaea marginata Baker, Syn. Fil. 151. 1868. 



Santa Teresa, August 12 (No. 2208). Fronds somewhat deltoid in outline, and near 

 normal forms of the species. Also between Dolores and Santa Gertrudis, Tepie, 

 August 7 (No. 3373). Plants very tall, approaching and perhaps best called variety 

 pyramidalis (Cheilanthes pyramidalis Fee), but not pendent as is usual in that form. 

 The specimens are elegant and so different in appearance from usual forms as almost 

 to suggest a new species. 



Pellaea rigida (Sw.) Hook. Sp. Fil. 2: 144. 1858. Pterin rigida Sw. Syn. Fil. 104. 

 1806. 

 Foothills, Sierra Madre, above Colomas, Sinaloa, July 19 (No. 1808). Small plants 

 and very pubescent. A part of this in envelope with No. 3416. 

 Pellaea seemanni Hook. Sp. Fil. 2 : 141, 1. 117 B. 1858. 



Between San Blascito and Aguacata, Tepic, August 5 (No. 3346). Dr. Rose's 

 specimens are characteristic of this very distinct species (so admirably represented 

 by Hooker's tigure) and strengthen a suspicion which I have long held, that two 

 distinct species have been referred to this name in our herbaria. 

 Pellaea teruifolia (Cav.) Fee, Can. Fil. 129. 1850-52. Pterin ternifolia Cav. Praelect. 

 1801: No. 657. 1801. 

 Near Plateado, September 4 (No. 2792); also near Santa Teresa, August 10 (No. 

 3403). Specimens all good, but the latter especially fine. 



'Vol.1, p. 61. * Vol. 4, p. 519. 



