859 
dio inferiore semper sterilis. Sori in pinnulis biseriati, suboctoni, 
in pinnula basali superiore subviceni, simul sumtis subquaternis auri- 
eulae, minuti, subrotundi, plani, ferragineo- fusci, castae propiores 
quam margini, in varietate umbratica semper distineti, in forma nor- 
mali demam contigui et confluentes. Indusia umbilicata, coriacea, 
rufo-brunnea. Sporangia anna! Au icilis Navo. "Sporae muri- 
eulatae, nigro-fuscae. Stipes brevis, 3 — 4-pollicaris, saepe pinnae 
anserinae fortioris crassitie, viridis, basi nigrescens, grandi- fusco- 
paleaceus, in var. umbratica obscurius paleaceus; semper paleis mag- 
nis, ovatis, ıninoribus quibusdam et coneoloribus immixtis, Bhachis 
universalis, inprimis basi et medio, valida, subflexuosa, viridis, sub- 
tus conrexa, supra plana, sulcata, paleacea, paleis in basi biformibus, 
frequentissimis, fulvo- ferrugineis, in varietate fuscescentibus, versus 
medium et apicem rhachis uniforinibus, piliformibus, sensim rarescen- 
tibus. Rhäaches partiales planae. latiusculae, marginatae, paleis pili- 
fornibus pallidis sparsim obsessae s. subglabrae. 
Rhizoma horizontale, grandipaleaceum, radiculis flexuosis, apice 
ramulosis, castaneo-fuseis, bie illie fulvo - hirtis. 
2. Aspidium (Polystichum) aculeatum Sw. Fronde ob- 
longo-lanceolata, longe acuminata, basi parum altenuata, sub- 
membranacea, bipinnata; pinnis numerosis, approximatis, patentibus, 
inferioribus remotioribus divergenti- divaricatis, omnibus e bass sur- 
sum leviter uuriculata lineari- oblongis, acuminatis, rectiusculis; 
pinnalis (15 — 20) paleaceo - breri- petiolatis divergentibus patulisve, 
e basi integerrima, sursum subtruneata, repandulu, deorsum brevi- 
ter obliqua trapezio- ovatis, subfaleatis, sursum distincte aurieulatis, 
reflexo- cartilagineo - marginatis, aristatis, mueronatfo - serratis, inci- 
sisve, ad costae basin rufo-puleaceis, ima superiore reliquis sub- 
aequali s. panllo majore, rerwsra, profundius serrata (5. inciso-pin- 
natifida in var.); soris minimis, converiuseulis, ferrugineis, distine- 
tis, demum subeoutiguis , indusüs maynis, membranaceis, rubellis, 
stipite breviusculo, ad basin purpurascente, grandipaleaceo, paleis pili- 
formibus maximis oblongis immixtis; rbachi universali dimidio inferiere 
valida, pallida, fusco- et ferrugineo - dimorpho -paleacea, partialibus 
teneris, feretiusculis, petiolisque paleis minutis adpressis dense obteectis. 
Aspilium aculeatum Smith fl. Brit. III. p. 1120. 
Engl. bot. 1562. 
” > 
„ , Engl. Fl. IV. p. 278. (t. Koch.) 
» „ Swartz Synops. Sl. p. 53. 
Aiton hort. Kew. ed. II. V. p. 509. 
