ASPLENIUM, § EUASPLENIUM. 203 



ous, rachis not unfrequently gemmiferous at its side. — Var. a. 

 tenuifrons ; pinnules 3-4. Pr. Rel. Hcenk. i. 2^. 45. Hook, 

 et Grev. Ic. Fil. t. 88. Brack. Fil. U. St. Exjd. Exp. j)- 159. 

 Metten. Asplen. j)- 125. A. herbaceum, Fee,8me Mem. Foug. 

 p. 55. t. 22. /. 3 [according to the specimen referred to of 

 Schlim), pinnules 3-5. — Var. /3. majus ; larger subcoriaceous, 

 pinnules more numerous. Aspl. imbricatum, Hook, et Grev. 

 Ic. Fil. t. 1G5. Brack. Fil. U. S. Eapl. Exp. p. 159. Metten. 

 Asplen. p. 125. Moore, Ind. Fil. 7;. 137. A. ternatum, Pr. 

 Rel. Hcenk. i. j). 45. Fee, ']me Mem. p. 54. t. 16./. 4 {accord- 

 ing to the specimen referred to of Schlim). A. sessilifolium, 

 Desv. — Var. 7. compactum ; small, pinnae and pinnules sub- 

 coriaceous densely compacted firm and coriaceous (appa- 

 rently very alpine). 



Hab. Var. a. Cordillera of Peru, Hanke. Cerro Pasco and Iluamantanga, 

 Mathetcs, n. 606 and 966. Valley of Canta, Crnckshanks. Ecuador, Quitinian 

 Andes, elev. 15,000 feet, Jameson. — Var. ^8. Pichinca, Jameson, same elev. New 

 Granada, elev. 10-1100 feet, Schlim,ii. 327. — Var. 7. Andes of Peru, apparently 

 from a great elevation, il/'Zeaw. Chimborazoand Antisana, Ecuador, 13,000 and 

 14,000 feet elev., Jameson. — Since tbe first discovery, and the publication by 

 Presl, of the Aspl. triphyllum, our herbarium has been enriched with specimens 

 which compel me to unite other supposed species with it : and I am far from 

 certain that other synonyms may not yet have to be added. I have already ob- 

 served that some of our small compact specimens (here called var. 7), have a 

 great affinity with A. divaricaium of Kunze ; and that Moore unites it, I fear 

 correctly enough, with A. myriophyllurn, itself a very variable species : and I feel 

 exceedingly doubtful about the A. cladolepton, Fee, 8me Mem. Foug. t. 22. f. 4, 

 whicii has quite the aspect of a large form of ^. triphyllum, with more numerous 

 pinna; than usual ; but my specimens of Schlim, to which he refers, are quite 

 the A. myriophyllum of Sw. (Canopteris), and this, as well as A. cladolepton, 

 Mettenius refers to A. rhizophyllum, while Moore maintains cladolepton as 

 distinct. 



195. A. (Euasplenium) ridaceum, Metten.; caudex stout 

 oblique densely rooting, stipites tufted ^ an inch to 2 inches 

 long castaneous as is the rather strict main rachis which is 

 prolonged beyond the frond rooting and proliferous at the 

 apex, fronds dark green membranaceous 10-12 inches long 

 broad-lanceolate acuminated attenuated at the base in conse- 

 quence of the dwarfed lower pinnae bi-tripinnate, primary 

 pinnce 1-1 i inch long numerous approximate from a broad 

 nearly sessile base oblong obtuse, secondary pinnae 2 lines 

 long all petiolate pinnated with 2-3 obovato-spathulate rarely 

 acute pinnae entire or 2-lobed tapering into a very distinct 

 petiole, lowest pair most compound and rather larger often 

 reflexed upon the rachis, ultimate pinnules on the primary 

 piiniac upon the frond entire or 2-lobed the lobes roundish. 



