301 



longe ciliato diversum. Plantara spontaneam non vidi, modo 

 cultam. 



11. Aspidium {Lastrea) leucosticton Kze. : fronde sub- 

 coriacca, puberula, discolore, subtns glaucescente, supra, 

 inprimis ad nervös venasque, parce hirta, in apice venarura 

 albo-squamosa, ovato- elliptica, acuminata, pinnato- pinnati- 

 fida; piunis articulatim insertis, subsessilibus, divergentibns, 

 superioribus patulis, approximatis, infimis subrninoribus, Omni- 

 bus e basi truncato -euneata, partim latiore oblougis, obtusis, 

 tenniter costatis; laciniis oblougis, rottmdatis, repaudulis, ve- 

 nis adsceudeutibus, piunatis, venulis ante marginem apice 

 clavato desinentibus; soris margini approximatis, in lacinia 

 subdenis, fuscis; indusiis reniformibus, subcoriaeeis, pallidis, 

 planis ; rhachi valida, depressa slipiteque brevi puberulis, 

 sparsim paleaceis, livide piirpurasceutibus; rhizomatc repente, 

 ramoso, tenui, adpresse castaneo-paleaceo. 



Speeies proxitna Aspid. (Lastreae Pr.) albo-punctato 

 Bory! Willd., quod vero differt: fronde lanceoJata, magis gla- 

 bra, pinnis leviter pinnatifidis, basi distinete auriculato-dila- 

 tatis, rhachi stipiteque glabro distinete angulatis , fusco-mar- 

 ginatis. Sori, forsan ex errore , a Willdenowio sparsi di- 

 euntur. 



12. Aspidium (Polystichum) Ludovicianuin Kze. Fu- 

 sius descripsi speciem distiuetissimam in „uotes on some Ferns 

 of the United States" Silliman Amer. Journ. new. sor. VI. 

 (1848) p. 84. 



13. Aspidium [Lastrea) obscuruin Fisch, mss. : fronde 

 coriacea, firma, glabra, ad costas hispidula discolori, brevi- 

 ter orata, acuminata, basi longe attenuata; pinnato -pinnati- 

 fida; pinnis brevi-petiolatis, petiolo decurrente articulatim in- 

 serto, approximatis, patentibus , e basi euneata, siibinaequali 

 lanceolatis, acurainatis, superioribus sessilibus adnalisve, sum- 



