TAB. XXII. 



ASPLENIUM (EUASPLENIUM) GlBERTIANUM, Hook. 



Caudice crasso descendente copiose radiculoso superne setoso- 

 squamoso, stipitibus numerosis caaspitosis vix unciam longis 

 compressis viridibus demum dorso prsecipue castaneis su- 

 perne alatis, frondibus subsemipedaKbus lanceolatis mem- 

 branaceis pulchre viridibus pinnatis, pinnis numerosis approx- 

 imatis ^-f-unciam longis patentibus ovato-lanceolatis pro- 

 funde pinnatifidis sessilibus basi oblique cuneatis et in alam 

 latiusculam longe (usque ad insertionem) pinna? adjacentis 

 inferioris profunde pinnatifidis, lobis oblongo-lanceolatis 

 acutissimis integerrimis infernis subcuneatis biquadrifidis 

 pinnis infimis subflabelliformibus, venis simplicibus vel in 

 laciniis 2 — 4-fidis bi-furcatis, soris oblongis discoidalibus (e 

 margine et costa remotinsculis), involucro membranaceo 

 albido, rachi insigniter compressa herbacea apice ssepius 

 longe excurrente prolifera. 



Asplenium Gibertianum, Hook. Spec. Fil. vol. S. ined. 



Asplenium inciso-alatum, Moore, MS. in Herb. Hook, and in 

 Index Fil. p. 137. (name only). 



Hab. Assumption, State of Paraguay, (not Island of As- 

 sumption, as given by Mr. Moore), M. Gibert. 



A very delicate and beautiful species, of which I have seen 

 only one fine specimen, kindly sent me by M. Gibert, a 

 gentleman chiefly resident at Monte Video, but who has 

 contributed much to our knowledge of the Nat. History of 

 Paraguay, and to whom I desire to dedicate the species. It 

 belonging to a family of plants, of which there are compara- 

 tively few representatives in Paraguay, judging from the 

 proportion of them with other plants that have yet come to 

 us. It will rank near the well-known Aspl. cicutarium. 



Fig. 1- Sterile pinna and winged rachis. f. 2. Fertile 

 pinna and winged rachis. f. 3. Bifid segments of a pinna 

 and sorus:— magnified. 



CEKl. 2. 1. 32. 



