CHAKACTEES OF TRIBES AND GBNEKA. 311 



Illust. Metten. Kl. Hort. Lips., t. 6, f. 6, 7 ; J. Sm. 

 Perns, Brit, and For., fig. 107 ; Hook. Syn. Fil., t. 4, 

 fig. 36 b. 



Obs. — The single species constituting this genns is placed 

 by most authors in Woodwardia, but its sarmentose, hy- 

 pogeous vernation and contracted fertile fronds have in- 

 duced me to follow Presl, and adopt it as a distinct genus. 



Sp. L. areolata, Presl (v v.) ; L. Harlandii {Hooh. Fil. 

 Exot., t. 7). 



The first is a native of North America and the second of 

 Hong-Kong. 



177.— Anchistea, Presl. (18-19). 

 Woodtvardia Sm. Hook. Sp. Fil. 



Vernation uniserial ; sarmentum hypogeous. Fronds 

 bipinnatifid, 1 to 2 feet high. Veiits flabellately forked ; 

 the lower venules transversely anastomosing and sporangi- 

 ferous. Sori oblong, contiguous, in a continuous costal 

 row. Indusimn linear plane. 



Type. BlecJmum virginicum, Linn. 



Illust. Metten. Fil. Hort. Lips., t. 6, f. 1, 2 ; J. Sm. Ferns, 

 Brit, and For., fig. 105. 



Obs — The reasons assigned for retaining the last genus 

 are applicable to this, which also consists of one species, a 

 native of North America. 



Sp. A. virginica, Presl. (v v.). 



178. — Onoclba, Linn., in part (1751). 

 Hook. Sp. F'il., in part. 

 Vernation uniserial, distant ; sarmentum hypogeous. 

 Sterile fronds sub-bipinnatifid. Veins reticulated. Fertile 



