

TAB. C XVI II 



ACROSTICHUM TRIP ARTITUM. 



^ 



FILICES.— Gyratje. Br. 



Polypodiace*. Kaulf. Filices verse. Willd., Spreng 



Gen. Char. ACROSTICHUM, Linn. Sori amorphi, seu Capsula per totam paginam in- 



feriorem frondis (interdum diversae) vel ad ejus partem sparsae. Involucrum nullum (nisi 

 squamulae, vel setae in quibusdam capsulis interstinctae) . Br. 



Acrostichum tripartitum; frondibus longe petiolatis, sterilibus reniformibus tripartitis, laciniis 



cuneatis trilobis, fertili trilobo valde squamoso. 



Hab. In sylvis provinciae Esmeraldas, Am. Merid. arborum truncis, legit D. Prof. Gul. Jame- 

 son, ad alt. 5000 ped. 



Caudex repens, hic illic radiculosus, undique ferrugineo-squamosus. 



Stipites erecti, frondium sterilium vix unciam, fertilium duas ad tres uncias longi, flavo-fusci, squamosi, squamis 



fuscis lanceolato-acuminatis membranaceis sparsis. 

 Frondes simplices, steriles, reniformes, subcoriacea?, squamosae, squamis demum deciduis, tripartitae, laciniis 



cuneatis basi attenuatis, trilobis, lobis obtusis plerumque integris : fertiles circumscriptione cordatae, primum 



valde fusco-squamosae, dein nudiusculae, trilobae, lobis rotundatis, integris vel subsinuatis. 

 Cajpsulce totam inferiorem partem frondis tegentes, squamis interspersas, sphericae, intense fuscae, annulo lato fere 



completo cinctse. 

 Semina ovalia, vel subrotunda, laevia. 

 Fig. 1. Capsulae. f. 2. Semina: — magn. auct. 



I 



The 



affinity with this plant 



questionably the A.flabellatum of Humboldt, a native 



of rocky places in Venezuela ; but that is much larg 



has the sterile fronds in the first 



bipartite, the segments multifid ; whilst the fertile ones are orbicular and peltate, (according to the 



fi 



& 



but reniform in the description,) quite glabro 



free from scales, and 



ounded by 



diaphanous and crenated margin. That species appears, as it were, intermediate between our plant 



and A.peltatum of Swartz. 







