128 



FEENS : BEITISH AND FOEEIGN. 



1-2^. feet long, Bmooth, contracted and fertile above, sterile 

 below; Sterile pinnules oblong, elliptical, oblique sub-cordate, 

 Berrnlate, 1-1 J inches in length. Vems forked ; venules free. 

 Fertile pinnules linear, 2-3 inches long, revolute, margin con- 

 niving and forming an universal indusimn. Sporangia occu- 

 pying nearly the whole length of the contracted venules, 

 forming Uuear forked confluent sori. 



1. L. cordifolia, Lag. ; Hook. Bot. Mag. t. 5159. Cerato- 

 daotyUs osmundioides, J. Sm. in Hook, et Baiter, Gen. 

 Fil. t.' 36 ; Lowe's New Ferns, t. 30. Botryogramma 

 Karwinskii, Fee, Oen. Fil. <. 15 C. AUosorus Kar- 

 winskii, Eume, Fil. t. 4 ; Hook. Ic. PI. t. 387-8. — 

 Mexico. Tr. 



** Veins anastomosing. 



§ 3. HemioniieoB. Fronds simple, pinnate or rarely bipirmate. 

 Sori more or less complete retimlated. 



53. DICTYOGBAMMA, Fee. 



Vernation uniserial, contiguous ; sar- 

 ment^m short. Fronds pinnate orbipinnate, 

 1-3 feet high, smooth; pinnse elliptical- 

 lanceolate, 6-10 inches long. Venation sub- 

 uniform, reticulated; areoles unequal, gene- 

 rally elongated, oblique. Receptacles super- 

 ficial. Sori linear, reticulated, naked. 



1. D. Japonica, Fee, Gen. Fil. t. 15 A. 



Hemionitis Japonica, Thimb. Gym- 



nogramma Japonica, Hook. Sp. Fil. — 

 Genus 53 —Portion ot Tqt^o^ TP^^^^uo 



fertile frond. No. 1. Japan, JJormosa. 



54. HEMIONITIS, Urm. 



Vernation fasciculate, erect, short. Fronds simple, cordate, 

 palmate orpinnate, smooth or villose. Veins uniform reticulated. 



