AN ENUMERATION OF CULTIVATED TEENS. 205 



feet long. Veins reticulated, or the exterior venules free ; the 

 costal anastomoses transverse, elongated, and sporangiferous. 

 Receptacles elongated, medial, constituting a costal row of 

 oblong, linear, contiguous son. Sporangia immersed. Indu- 

 sium vaulted, revolute. 



1. W. radicans, 8m. ; Sclik. Fil. 1. 112 ; Hook. Gen.Fil. 1. 17 ; 



Lowe's Ferns, 4, t. 44. Blechnum radicans, Linn. 

 "Woodwardia stans, Sw. j3 confluens. Woodwardia 

 confluens, Hort. South Europe, North India, 

 Madeira, California. 



2. W. orientalis, Sw. W. 



Fortunei, Hort. Angl. 

 Japan and China. 



3. W. Japonica, Siv. Blech- 



num Japonicum, 

 Linn. ; Thunb. Fl 

 Jap. t. 35. Japan 

 and China. 



105. ANCHISTEA, Presl. 



Vernation uniserial ; sar 

 mentum hypogasous. Fronds 

 bipinnatifid, 1-2 feet high. 

 Veins flabellately forked, free 

 exteriorly ; the lower venules 

 transversely anastomosing and 

 sporangiferous. Receptacles 

 elongated, medial. Sori oblong, 

 contiguous, in a continuous 

 costal row. Indusium linear, 

 plane. 



1. A. Virginica, Presl. 

 Blechnum Yirgini- 

 cum, Linn. Wood- 

 wardiaVirginica, 8m.; 

 Metten. Fil. Hort. 

 Lips.t.6,f. 1,2-, Lowe's 

 Ferns, 4, t. 45. 

 North America."' T. 



Genus 105. Fertile pinna, under side. 

 No. 1. 



