AN EIJlTMEltAriON OF CULTIVATED lEifNS. 263 



plicate, each bearing on its inner side four rows of sessile, oval 

 sporangia, attached by their base ajid opening vertically. 



Genus 147.— Portion of fertUe frond, natural size j epikeiet 

 enlarged. No. 1, 



L A. digitata, Wall. Schizsea digitata, Sw.; Hook. Gard. 

 Ferns, ■ t. 49. — East Indies ; Malayan, Philippine, 

 and Kji Islands. 



Time II.-0SMUNDE^. 



Sporangia globose, reticulated, short-pedicellate, oblique and 

 gibbous at the apex, opening by a vertical slit, sub-bivalved. 

 Hing incomplete or obsolete. 



.148. OSMUNDA, Lirm, 



Vernation fasciculate, erect, subarboreous. Fronds pinnate 

 or bipinnate, 3-10 feet high ; pinnae articulated with the rachis. 

 Veins forked ; venules free. Fertile fronds wholly, or the upper 

 or middle portion, contracted, forming simple or compound 

 sporangiferpus panicles. 



