AN EinJMEEATION 01' CULTIVATED FERNS. 153 



or deoumbeBt. Fronds varying from pinnatifid, bipinnatifid, to 

 decompound-multifid, 1-6 feet high. Veins simple, or once or 

 seyeral times forked, or oostseform and pinnate ; venules free. 

 BeceptacZes punctiform, terminal or medial. Sori round. In- 

 dAisimm reniform or subrotund (as in figure), attached by its 

 sinus on the interior side. 



* Vernation vmisenal, sarmentose. (Thely-pteris.) 

 ■f Fronds lanceolate, bipimiatifid. 



1. L. palustris, /. 8m. Thelypteris palustris, Sehoit. Lastrea 



Thelypteris, Presl ; lAndl. and Moore's Brit. Ferns, 

 . t 29 ; Hooh. Gen. Fil. i. 45 J. 2 ; Sowerby's Ferns, 

 t. 7. Polypodium Thelypteris, Lvrm. Aspidinm 

 Thelypteris, Sw.; Sclik. Fil. t. .62 ; Fng. Bot. t. 1018. 

 Nephrodium Thelypteris, Desv.; HooJc. Brit. Ferns, 

 t. 13.— Europe. 



2. L. Noveboracensis, Fresl. Polypodium Noveboracense, 



Linn.; Bolik. Fil. t. 46. Aspidium Thelypteroides, 

 8w. — North America. 



3. L. invisa, Presl. Aspidium invisnm, 8w. ; SchTe. Fil. 1. 18. — 



West Indies. 



4. L. augesoens, /. 8m. Aspidium augescens, lArik ; Kwnze, 



Fil. t. 59; Lowe's Ferns, 6, t. 10. Nephrodium 

 Ottonianum, Kwnm. — Tropical America. 



ft Fronds deltoid, decompoimd. 



5. Ii. decomposita, /. 8m. Nephrodium decompositum, 



R. Br. ; SooTt. Fil. Fl. Nov. Zel. t. 79 (exclus. name, 

 glabeUum). Aspidium decompositum, Spreng. ; 

 Lowe's Ferns, 6, t. 33. — Australia, Tasmania, and 

 New Zealand. 



6. L. velutina, /. 8m. Nephrodium (Lastrea) velutinum, 



BooTc. 8p. Fil. 4, p. 145 ; Eooh. Fil. Nov. Zel. t. 80. 

 Aspidium velutinum, A. Bdth — ^New Zealand. 



7. L. putaeseens, Presl. Polypodium pubescens, Linn. Ne- 



phrodium pubescens, SooJe. et Grev. Ic. Fil. t. 62. — 

 Jamaica. 



8. L. quinquangtilaris, J. 8m. Aspidium quinquangulare, 



Kwnze. Aspidium pubescens, Lowe's Ferns, 6, t. 25. — 

 Native country unknown. 



