TAB. XXII. 
Asplenium (Euasplenium) Gibertianum, Hook, 
Caudice crasso descendente copiose radiculoso superne setoso- 
squamoso, stipitibus numerosis csespitosis vix unciam longis 
compressis viridibus demum dorso praecipue castaneis su- 
perne alatis, frondibus subsemipedalibus lanceolatis mem- 
branaceis pulchre viridibus pinnatis, pinnis numerosis approx- 
imatis J-|-unciam longis patentibus ovato-lanceolatis pro- 
funde pinnatifidis sessilibus basi oblique cuneatis et in alam 
latiusculam longe (usque ad insertionem) pinnae adjacentis 
inferioris profunde pinnatifidis, lobis oblongo-lanceolatis 
acutissimis integerrimis infemis 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, racbi insigniter compressa herbacea apice saepius 
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. Gihert. 
A very delicate and beautiful species, of wbich 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. \ Sterile pinna and winged rachis. f. 2, Fertile 
pinna and winged rachis. 3. Bifid segments of a pinna 
and sorus ; — magnified. 
CENT. 2. T. 22. 
