MAXON — STL'DTES OF TROPICAL AMERICA^^ FERFS, 479 



The proscnt species must be closely related to the forra regarded by Metteniiis 



as typical A, salicifolium and figured by him,^ presumably on a Peruvian plant, 

 collected by Poeppig, this being the only specimen cited by him as of the typi- 

 cal form. Our specimens of A. rcctangiilarc differ in having the pinnic longor- 

 t^talked, broader, and with loss pronounced marginal serrations. The general 

 form of the piniue is exactly the same» 



\ Asplenium integerrimum and A. kappleriunum, reduced to varietal ranlv by 

 Mettenius, are here dealt with separately* 



Asplenium obtusifolium L, Sp. Ph 1080, 1753.^ 



f Asplenium repandulum Kunze, Linna:!a 9: 65. 1S34. (Type from Peru.) 



A^pleulum ripariiim Leibm, Dansk. Vid, Selsk* Skr. V. 1: 244, 1841), (Tyi>t? 

 from Mexico.) 



Not closely related to A, salicifoUnm, but distril)nted under that name, is 

 Moscn's no, 2111 from Caldas, Minas Geraes, Brazil, which must be referred to 

 the polymorphic A. obtusifolium ranging through the West Indies and in larger 

 States from Mexico to Peru and Brazil. That which Hooker considered' the 

 nmst typical form of tlie species he figured^ as A, jHparium Liebmann, a name 

 first applied to Mexicnu specimens; but the plate is drawm, probably, from a 

 Brazilian plant, several of which are cited; none of the Mexican and Central 

 American specimens shows quite the same extreme development, while the 

 Brazilian specimen above mentioned agrees exactly. 



The peculiarities of the species in this broader sense are well brought out by 

 Hooker, who places the better known dwarf mainly lobed or laciniate form as 

 the *'var. ohtusifoUinn " of A. ripanum, notwithstanding its priority of name. 

 Hooker's opinion on the specitic identity of these widely varying forms is here 

 adopted; reluctantly, however, not only because of the inordinate breadth thus 

 ascribed to the species, but also on account of the manifestly inappropriate name 

 under which the extreme form must rest along with the typical West Indian 

 form to which it is properly applicable. 



The following specimens are in the XJ. S, National Herbarium: 



L West Indian form (mainly). Fronds small; jiinna* usually obtuse, sharply 

 cuneate at the base, sometimes nearly entire,^ with sinuate-dentate margins, 

 or more often deeply lobed and irregularly laciniate, with sharply erose- 

 dentate margins, 



Porto Kico: rtuado, Sitiicnis G443, 053:^, 



Grenada: EUiolt 04. 



Dominica: Rosalie, LJoyd G9S* 

 Montskrbat: Turner, 

 Trinidad : Fendlcr 139, 



Colombia: Santa Marta, H. H. Smith 1126. 

 II. Continental roRir. Fronds large (up to 60 cm. long) ; pinn?9 larger and 

 more numerous, nearly all auriculate and less aeutely cuneate at the base, 

 toward the apex acute or (in the Mosen specimen) attenuate, margins 

 sinuate-dentate or irregularly serrate-dentate. (.1. riparlum Liebm.) 



Mexico: Vallee de Cordoba, State of Vera Cruz, Bourgcau 2014 (received 

 as A. rcpanduhim Kunze) ; District of Cordoba, State of Vera Cruz, 

 Finck 35a, 



'lAbhand. Senck. Nnt. GeselL 3: 144. pi -J, /. 7,J. 1860. 



■m 



^Founded on the West Indian Adiantum alis iatiorihus of Petiver (Pter. Am. 

 no, 117 pi, 2. /. J//. 1712, incorrectly cited by Linnseus as /. }). 

 *^Sp. FIl. 3: 119. pJ. 16[), 

 **Hook. & Grev. 2: pL 239. 1S31. 



