TAB. XXX. 



Asplenium (Euaspleniu.m) Hallii, Hook. 



Cauclice crassiusculo ascendente, stipitibus cajspitosis ebeneis 

 nitidis 1-2 uncias longis, frondibus 6-12 uncias longis sub- 

 membranaceis fusco-viridibus obloDgis lanceolatisve basi 

 attenuates apice longe acuminatis flagelliformibus suba- 

 phyllis radicantibus subbipinnatis seu pinnato-pinnatifidis, 

 pinnis primariis sessilibus ovato-lanceolatis obtusis f ad 

 unciam longis horizontalibus subpectinato-pinnatifidis, seg- 

 mentis linearibus obtusis ad basin superiorem subauriculatis 

 bifidis vel inferne iterum pinnatis, pinnis infimis frondis 

 nanis, venis pinnatis solitariis in quoque segmento, soris 

 parvis oblongis costara versus, involucris membranaceis, 

 rachi ebenea. 



Asplenium Hallii, Hook, Sp. Fil. 3. p. 202. 



Asplenium pectinatum, Moore, mst. in Herb. Hook, et in Lid. 

 Fil. (name only) not of Hallich, nor of Mettenius. 



Hab. Forest of Esmeraldas, Ecuador, Col. Hall; Sao Gabriel, 

 valley of the Amazon, on young trees and shrubs, "fronds 

 spreading horizontally," (no doubt rooting at the extremity), 

 Spruce, n. 2357. 



No other stations than the above have yet been recorded for 

 this rare species. In the flagelliform and radicant apex it 

 resembles Aspl. rhizophyllum, but the pinme and pinnules 

 are widely different. It is remarkable for the ebeneous short 

 stipes and rachis, and the dwarfed lower pinna? extending 

 almost to the caudex. 



Fertile plant : nat. size. Fig. 1 . portion of a bipinnate 

 form: nat. size.f. 2. primary pinna, fertile, and/ 3. involucre : 

 magnified. 



