150 



PHEGOPTERIS. 



Phegopteris rudis Mett. Fil. Ifort. Lips. 83. 1856. 

 Near Santa Teresa, August 12 (No. 2213). 



POLYPODIUM. 



Polypodium angustifolium Sw. Fl. Ind. Oec. 3 : 1627. 1806. 



Foothills Sierra Madre, Sinaloa, near Colonial, July 16 (No. 1691); .also "between 

 Dolores and Santa Gertrudis. Tepic, August 7 (No. 2039). Sori irregularly uniserial. 

 but lamina broad enough (i to f inch) for type. 

 Polypodium aureum L. Sp. PL 2 : 1087. 1753. 



Sierra Madre, west of Bolanos, Jalisco, September 15 to 17 (No. 2968). Small 

 plants, scarcely, or very slightly, glaucous beneath, one young state three-lobed and 

 fertile. Probably Fee's Clirysoptcris trilobata mentioned 1 as a dwarf form with three 

 lobes was founded on some such specimen. The specimens show free veinlets within 

 the areolae and must be considered as young plants of the species. With this is another 

 sheet, not numbered (stamped) and without special data, but ticketed "No. 5c from 

 Guanuato, A. Dnges." It contains a single frond about 10 inches tall with a terminal 

 lobe and five pairs of lateral ones, glaucous beneath and without free veinlets. The 

 specimen, therefore, is the variety areolatum (H. B. K.) Baker. But a variety based 

 on such unsubstantial differences is scarcely worth maintaining. 

 Polypodium furfuraceum Schlccht. Linnaeu, 5 : 607, 1830. 



Between Rosario and Colomas, July 13 (No. 1642). 



This is one of the most interesting Polypodiums that I know of, on account of the 

 singularly beautiful and varied scales with which the fronds are everywhere clothed. 

 P. skinneri Hook, resembles it very much, but is less densely clothed with scales, and 

 has a system of free veinlets, while those of the present species are forked. 

 Polypodium lanceolatum L. Sp. PI. 2 : 1082. 1753. 



Near Colotlau, August 29 (No. 3609). Weather-beaten, shrunken, small fronds, 

 but characteristic of this species. Also west of Bolanos, September 16 (No. 3716), 

 small plants, some fronds lobing slightly. 



Polypodium pectinatum L. Sp. PI. 2 : 1085. 1753. Nou herb., nee auct. 



Foothills Sierra Madre, near Colomas, Sinaloa, July 18 (No. 3201). 



I place the specimens here on account of the villous stipe and rachises, but the 

 plants are small and might pass for 7'. elaslicum Rich., a species doubtfully distinct. 

 Both have forked venation, with the lower pinnae reduced, the other characters 

 being equally variable in both species, which appear to differ only in size. 

 Polypodium eubpetiolatum Hook, in Benth. PI. Hartw.54. 1840. 



Near Santa Teresa, August 12 (No. 2205). 



Polypodium thysanolepis A. Br. ; Klotzsch, Linnaea, 20 : 392. 1847. 



West of Bolanos, September 16 (No. 3710;; Sierra Madre, Zacatecas, August 18 

 (No. 2399)— all very small, young plauts. Also near Plateado, September 4 (No. 2797), 

 plants more mature. 



PTERIS. 



Pterin aquilina lanuginosa (Bory) Hook. Sp. Fil. 2:196. 1858. Pteris lanuginosa 

 Bory; Willd. Sp. P1.5: 403. 1810. 

 Near Santa Teresa, August 12 (No. 2212). 



WOODSIA. 



Woodsia mexicana Fee, 7 1 ' Mem. 66, t. 26, figs. 3-7. 1854-1857. 



West of Bolanos, September 16 (No. 3719) ; specimens narrow and slender. Also a 

 larger form from near Plateado, Zacatecas, September 4 (No. 2796). 



•Baker, Syn. Fil. 317. 



