Ferns from the Southwest 113 



the foothills," in the mountains of southeast ern Ari- 

 zona, by William M. Courtis in 1880. It was illustrated 

 by Faxon. Within the next three or four years it was 

 collected by several botanists in different parts of Ari- 

 zona; for example, in the Dragoon Mountains by G. 

 R. Vasey, in the Huachuca Mountains by Lemmon, 

 in the foothills of the Santa Rita Mountains by Pringle, 

 in the Baboquiverai Mountains by Pringle, at Clifton 

 by Rusby, and at Bowie by M. E. Jones. It is credited 

 also to Texas and is known from two collections in 

 northern Mexico by Dr. Edward Palmer. The Texas 

 plants have not been seen by the writer. Of the others, 

 which are all represented in the National Herbarium, 

 the Arizona plants of Lemmon and G. K. Vasey are 

 the best developed and are in close 1 agreement with the 

 original specimens, as delineated in Faxon's excellent 

 illustration. 



If Professor Gooding's species is eventually recognized 



as distinct from X. Gray! it can not be known as Xotho- 

 laena hypoleuca, since this name was given long ago 

 by Kunze 1 to a South American species which is regarded 



a-- valid. 



Pellaea truxcata Goodding, Muhlenbergia 8: 94. 

 1912. 



Founded upon specimens collected in rocky "draws" 



of the Mule Mountains, Cochise County, Arizona, 

 August, 1911, by Leslie X. Goodding (Xo. 977): United 

 States National Herbarium, Xos. 692,689 and 692,690. 



Upon one of the type sheets is mounted a single, 

 very large, leafy, nearly sterile specimen; upon the other 

 a smaller fertile plant, with two detached fronds, these 



with small, strongly fertile segments. All are to be 



referred to the common and exceedingly variable specie - 



^.innaea 9: 54. 1834. 



