110 American Fern Journal 



species of the group of A. Trichomanes in having the 

 fronds recurved and proliferous at the tip, many of 

 them actually striking root and developing young 

 plants. Although the Arizona specimens are typical, 

 this feature is not very readily apparent to one unac- 

 quainted with this species, since most of the fronds 

 (which are fragile) are broken off in their apical part, 

 only one or two of them showing the characteristic 

 proliferation. The position of the sori midway between 

 the margin and midvein is also distinctive, those of 

 A. resiliens (A. parvulum) being borne much nearer the 

 margin. A synopsis of Asplenium Trichomanes and 

 its American allies has recently been published by the 

 writer. l 



Asplenium rupium Goodding, Muhlenbergia 8: 92. 1912. 



Founded upon specimens collected in Asplenium 

 Canyon, Mule Mountains, Cochise County, Arizona, 

 by Leslie N. Goodding, in August, 1911 (No. 969), 

 and April, 1909 (No. 67). The first of these, being 

 the more perfect, may stand as the type; United States 

 National Herbarium, No. 692,685. 



The specimens just cited agree in every particular 

 with the plant described as a new species from the 

 same general region several years ago as Asplenium 

 Ferrissi Clute. 2 This has since been reduced 3 to As- 

 plenium alternans Hook., or (as it ought properly to 

 be called) Ceterach Dalhousiae (Hook.) C. Chr., a species 

 known otherwise only from Abyssinia and the Himalaya. 

 Although this is a most unusual distribution, it must 

 be confi d that the Arizona plants offer no tangible 

 points of difference from those of the Old World. If 



>Contr. U. S. Nat. Herb. 17: 134-153. 1913. 

 'Fern Bull. 16: i. plate. 1908. 

 *Fem Bull. 19: 33 et eeq. 1911. 



