26 CONTRIBUTIONS FROM THE NATIONAL HERBARIUM. 
10. PHANEROPHLEBIA Presl. 
Rootsteck short and creeping; fronds pinnate, the pinnz 10 to 16, usually auriculate 
at the base, serrate or incised; sori round, borne on the back of forking veins; indusium 
peltate, opening all around the margin. 
1. Phanerophlebia auriculata Underw. Bull. Torrey Club 26: 212. pl. 359. f. 8, 4. 
1899. 
Aspidium juglandifolium of authors, in part, not Kunze. 
Type Locaity: ‘‘Cool damp cliffs, Mapula Mountains, Chihuahua.”’ 
RanGE: Mountains of southern Arizona and New Mexico and western Texas. 
New Mexico: Organ Mountains. Transition Zone, 
11. FILIX Adans. 
Fronds oblong-lanceolate, 10 to 30 cm. long, 2 to 3-pinnatifid, thin, bright green; 
sori roundish, each borne on the back of a vein; indusium membranous, hoodlike, 
attached by a broad base on its inner side. 
1. Filix fragilis (L.) Underw. Native Ferns ed. 6. 119. 1900. BRITtTLE FERN. 
Polypodium fragile L. Sp. Pl. 1091. 1753. 
Cystopteris fragilis Bernh. Journ. Bot. Schrad. 1: 26. 1806. 
Typg LocaLity: “Habitat in collibus Europae frigidioris.”’ 
RanGeE: Throughout temperate North America, and in temperate regions around 
the world. 
New Mexico: Common in all the mountains from the Black Range and White 
Mountains northward. Transition Zone. 
12. WOODSIA R. Br. 
Sori orbicular, borne on the back of simply forked, free veins; indusium inferior, 
thin, in ours conspicuous, breaking at the top and splitting into several laciniate 
lobes. 
Ferns with much the aspect of the fragile fern, but the fronds stiffer and the divi- 
sions shorter, the indusial characters, also, different. 
KEY TO THE SPECIES. 
Fronds lanceolate; pinne short, triangular-lanceolate, not glan- 
dular........ 0... e eee eee ee eee eee cee cece eee eens 1. W. mexicana, 
Fronds broader than lanceolate; pinnz longer, the subdivisions 
broader, glandular-hairy.............-.-.-+-+---++------ 2. W. plummerae. 
1. Woodsia mexicana Fée, Mém. Foug. 7: 66. 1854. 
Type Locauity: ‘‘ Habitat in Republica Mexicana, prope San Angel.”’ 
Ranae: Western Texas to Arizona, south into Mexico. 
New Mexico: Tunitcha Mountains; Chama; Winsors Ranch; Rio Pueblo; Sierra 
Grande; Magdalena Mountains; Mogollon Mountains; Organ Mountains; Gilmores 
Ranch. Transition Zone. 
2. Woodsia plummerae Lemmon, Bot. Gaz. 7: 6. 1882. 
Woodsia obtusa glandulosa D. C. Eaton & Faxon, Bull. Torrey Club, 9: 50. 1882. 
Tyre Locauity: ‘On the north side of a high peak of the Chirricahua Mountains,” 
Arizona, 
Ranae: New Mexico and Arizona. 
New Mexico: Burro Mountains (Rusby). 
