170 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
Of these the three species earlier described have been so generally 
misunderstood or confused with each other that further notes may 
be of value. 
1. Bommeria ehrenbergiana (Klotzsch) Underw. Bull. Torrey Club 29: 633. 1902. 
Gymnogramme ehrenbergiana Klotzsch, Linnaea 20: 411. 1847. 
Gymnogramme podophylla Hook. Sp. Fil. 5: 152. 1864. 
Stegnogramme ehrenbergiana Fourn. Mex. Pl. 1: 71. 1872. 
Hemionitis podophylla J. Smith, Hist. Fil. 150, 1875. 
Dictyogramme podophylla Trev. Atti Ist. Veneto V. 3: 591. 1877. 
Bommeria podophylia Fourn. Bull. Soc. Bot. France 2'7: 328. 1880. 
Tyre Locauity: ‘Ad thermas prope Grande, in regno mexicano” (Ehrenberg 662). 
DistriputTion: Probably confined to Mexico, though reported also from Guatemala, 
IntustraTion: Hook. loc. cit. pl. 296 (as Gymnogramme podophylla). 
This species appears to be rare in collections. Klotzsch had but a single collection; 
Hooker had only Miiller’s plant (no. 719), beside Wright’s Boundary Survey speci- 
mens (which are B, hispida); Underwood cites only a single collection; and there is 
in the National Herbarium but one specimen, this collected upon Orizaba in July, 
1891, by Henry E. Seaton (no. 492), distributed as Gymnogramme podophylla. 
2. Bommeria subpaleacea Maxon, Contr. U. 8. Nat. Herb. 17: 169. 1913. 
TYPE LOCALITY: Province of Pueblo, Mexico. 
DisTriBuTION: Known only from the type collection (Purpus 4025). 
Ittustration: Contr. U. 8. Nat. Herb. 17: pl. 6. 
3. Bommeria hispida (Mett.) Underw. Bull. Torrey Club 29: 633. 1902. 
Gymnogramme hispida Mett.; Kuhn, Linnaea 36: 72. 1869. 
Bommeria schaffnert Fourn. Bull. Soc. Bot. France 27: 327. 1880. 
Gymnogramme schaffneri Baker, Ann. Bot. 5: 484. 1891, not Moore, 1861. 
Neurogramme hispida Diels in Engl. & Prantl, Pflanzenfam. 14: 264. 1899. 
Gymnopteris hispida Underw. Native Ferns ed. 6. 84. 1900. 
Type LocaLity: ‘‘ Pass of the Limpia, [Texas,] crevices of rocks on the mountains” 
( Wright 819). 
DistrIBuTION: Western Texas to southern California; also common in Mexico. 
This species shows wide variation in leaf shape and size. The most peculiar state 
is that represented by Pringle’s 4420, which is the type of his variety muralis, a form 
which owes its reduced stature possibly to an unfavorable habitat upon the face of 
cliffs; some of the fronds, though less than 1 cm. wide, are yet perfectly fertile. 
Besides the type collection of Bommeria hispida the following specimens are in the 
U.S. National Herbarium: 
Texas: Limpio Mountains, July, 1883, V. Havard. 
New Mexico: Bear Mountains, November, 1886, Rusby. Organ Mountains, Dona 
Ana County, alt. 1,650 meters, Wooton 105; also other specimens. Guade- 
lupe Canyon, at Mexican boundary line, Mearns 695. 
Arizona: Lowell, May, 1884, W. F. Parish. Nogales, William Palmer 1204; Ever- 
mann. Bowie, Jones 4254, Baboquivari Mountains, April 6, 1884, Pringle. 
Chiricahua Mountains, Rothrock 513; Blumer 1962. Huachuca Mountains, 
August-October, 1882, Lemmon. Rincon Mountains, north slope, Blumer 
3294. Santa Catalina Mountains, March, 1881, G. R. Vasey. Santa Rita 
Mountains, Griffiths 6055. 
CaLirornia: Without locality, #. Palmer. 
Mexico: Fronteras, Sonora, alt. 1,400 meters, Hartman 29. Huchuerachi, Sonora, 
Lloyd 482, San Luis Potosf, alt. 1,800 to 2,100 meters, Parry & Palmer 1006. 
Valley of Mexico, Schaffner 32. Cliffs near Tequila, Jalisco, Pringle 4420. 
Rocky hills, Sandia Station, alt. 2,100 meters, Pringle 10151. Durango and 
vicinity, 1896, E. Palmer 556. Otinapa, Durango, 1906, Z. Palmer 358. 
