TAB. XXVIII. 



FTERIS DENTICULATA. 



FILICES. — GYRATiE.. Br. Polypodiace^. Kaulf. 



Filices verae. Willd. 



Gen. Char. Sori lineares, marginales, continui ; capsidis sinu involucri insertis. Involucrum mar 



ginale, continuum, scariosum, intus liberum. Br. 





Pteris denticulata; frondibus pinnatis, pinnis decurrentibus suboppositis, duobus vel tribus paribus 



inferioribus margine exteriore (praecipue) pinnatifidis raro bipinnatifidis setoso-dentatis, ferti- 



libus ad apicem solummodo denticulatis. 



Pteris denticulat 



Sw. Fl. Ind. O 



v 



p. 1600. Sw. Syn. Fil. p. 97. Kaulf. Enum. Fil 



P 



Pteris brasiliensis. Raddi Syn. Fil. Brasil 



1 



Raddi Fil. Brasil. p. 4J. t. 68 (bis) 



Pteris quadrifida. B. Presl. in Del. Prag. \.p. 182. num. 32 (fide Raddi) 



Pteris tristicula. Raddi Fil. Brasil. p. 46. t. 69 ? 

 Hab. In lapidosis umbrosis Hispaniolae. 



Swartz. In Brasilia. Chamisso, Raddi, Burchell 

 D a Maria Graham. Cult. In Hort. Bot. Liverpool. 



Caudex non vidimus, sed teste cel. Raddi, « subnullus, radiculis numerosis filiformibus flexuosis rigidis instructus, 



\ 



apice dense squamuloso, squamulis lanceolato-acuminatis, denticulatis 



nigris. 



» 



Stipites 



pollicares ad pedalem, graciles, tetragoni, utrinque canaliculati, glabri, superne subalati 



Frondes pedales, nunc, fide Raddi, bipedales, circumscriptione ovatae, vel deltoidese, pinnata^ 



ppositas, lanceolatse, acuminatas, costata-, reticulatas ; superiores decurrentes 



reliq 



Pinnce plerumque 

 \ce magis minusve 



petiolata?; intermedice ad basin divisae, infi. 



margine exteriore (nunc interiore) pinnatifidae, laciniis 



sime divisis 



Pinnce omnes, planta sterili, margine dentatae, dentibus setosis, fertili, ad apicem, solummodo 



dentato-spinulosis. Rachis petiolique alati, superiore parte praecipue 



Sori continui, omnem marginem, praeter apices 



pantes 



Capsulce in sinubus involucri numerosae, sphaericae, annulatae, longissime pedicellatae, pedicello 



celluloso. 



Semina triangularia, granulis minutissimis immixta 



Fig. 1. Frons fertilis 



f. 2. Frons 



f. 3. Pinnae portio 



f. 4. S 



f. 5. Capsula 



f. 6. Semina cum granulis \—magn. auct. 



If 



are 



not deceived, this is a plant liable to considerable variation. 



We know, fro 



speci 



mens 



d from the author, as 



ell as from the description and fig 



that it is Raddi 



Pt. Brasiliensis : but then we equally believe it to be the Pt. denticulata of Swartz and Willdenow 



And we have in our own possession such 



of specimens, as almost make us believe that the 



Pt. tristicula of Raddi, and even his Pt. spinulosa, are states of the same plant. 



The Messrs. Shepherds of the Liverpool Botanic Garden cultivate this plant in the 

 is well worthy a piace in every collection. 



and 



