258 UNDERWOOD: REVIEW OF THE GENERA OF FERNS 
1763 
Adanson (Famille des Plantes, 2: 20, 21) recognized twelve 
genera of ferns of which the following were new: 1. Thelypteris, 
citing '* Filix-foemina Fuchs, 596” and “Pteris Lin.,” among 
other references, but characterized as having “ membrane que 
borde comme une ligne tout le contour de chaque division des 
feuilles," and thus being a clear equivalent of Pteris/; 2. Scolo- 
pendrium, clearly based on Lingua-cervina Tourn.;* 3. Ceterac, 
based on Asplenium of Tournefort which was the common ceterach 
of Europe; 4. Fix, based on Filix baccifera Cornut, 5, which is 
unmistakably our Cystopteris bulbifera which Cornut figured in 
1635, and which Linnaeus correctly quoted under Polypodium 
bulbiferum; 5. Dryopteris, based on Filix-mas of Fuchs and Tourne- 
fort, M. 377, 312; 6. Angiopteris, adopted from Mitch. Gen. 29, 
and exactly synonymous with Ozoclea L. 
1782 — 
Berg [ius] (Acta Acad. Sci. Imp. Petrop. 6: 248. M. 7, f. 7-3) 
established the genus Caenopteris based on Caenopteris furcata 
from Bourbon, C. rutacfolia from Cape Colony and C. vivipara 
(Acrostichum viviparum L.) also from Bourbon. These species 
have usually been relegated to Asplenium (8 Darea). 
1783 
Lamarck (Encyclop. method. Botanique) commenced his treat- 
ment of the ferns which continued until 1808 when the work was 
completed by Poiret. They accepted only the twelve original Lin- 
naean genera, but added considerably to the number of ferns, their 
enumeration reaching 444 species. (Cf. footnote under 1806, 
Swartz.) 
1786 
Thouin, according to Pfeiffer, established the genus Celanthera 
“Act. Ac. Paris (?)”; this genus Pfeiffer refers to Marattia Swz., 
which if a true citation it antedates by two years. We have been 
unable to locate the original of this citation. 
early every writer of the present century has wrongly attributed this name to 
Sem 1793; it is high time that its original source be publicly noted. 
