104 



FERNS : BRITISH AND FOEEIGN. 



Division II. Desmobrya. 



Fronds in vernatioit termiEal, uniserial or fasciculate, their 

 bases adherent and continuous with the stem, which is either 

 a caudex or saimentunv 



Tkibb IV.— ACROSTICHE^. 



8ori undefined (amorphous), naked. FertUe fronds or seg- 

 ments always more or less contracted ; the under side (or rarely 

 both sides) densely sporangiferous. Acrostichum, Linn. 



§ 1. FlwphoglossecB. Fronds always simple. Veins free or 

 rarely comhined at tlie margin or reticulated. 



* Veins free. 



29. ELAPHOGLOSSUM, Sclotl.; J. Sm. 



Vernation uniserial and sarmeutose, or snbfasciculate aaid 

 decumbent, squamose. Stipes often pseudo-articulate, node 



Genus 29.— Portion of barren frond, 

 under side. No. 3. 



Genua 29. — Portion of ff rtl e 

 &ond, under side. No 3. 



