316 FERNS : BRITISH AND FOREIGN. 



114. ANTIGRAMMA (p. 226). 



3. A. plant aginea, Presl. Scolopendrium Donglasii, Hook. 

 Sp. Fil. 4, p. 3. Asplenium Douglasii, Hook, et Grcv. 

 t. 150, Brazil. K. 



115a, ALLANTODIA, E. Br. (in part). 



Vernation fasciculate, corm decumbent. Fronds pinnate, 

 2-3 feet long, sub-erect; pinnae linear, membranaceous, 4-6 

 inches long, 1 inch broad. Veins forked near the midrib, anasto- 

 mosing towards the margin, forming two rows of hexagonoid 

 ar- o'oe bounded by a continuous marginal vein. Sporangi- 

 ferous receptacles unilateral on the lower part of the veins. 

 Indusium vaulted, cylindrical, forming linear sori. 



OBS. This genus is now restricted to a single species ; it 

 originally contained a group of species, which now form the 

 section Athyrium of the genus Asplenium (p. 219) : they differ 

 in having large decompound fronds and free venation, agreeing 

 only with the present genus in having turgid indusia, which is 

 not uncommon to other species of Asplenium. 



The name Allantodia is derived from the Greek allantos, a 

 sausage, the indusium before bursting resembling a miniature 

 sausage in shape and colour. 



Genus 115a. Portion of fertUe frond, natural size, and ditto magnified. 



1. A. Brunoniana, Wall. PI Asiat. Ear. i. 44, t. 52 ; Hook, 

 et Bauer, Gen. Fil. t. 120 A ; Hook. Sp. Fil. 3, p. 

 275. Himalayas, Ceylon, Java, Tahiti. K. 



