Allantodia
(from allantos, a sausage; in reference to the cylindrical form of the indusium). ORD. Filices. A greenhouse monotypic genus, differing from Asplenium in the dehiscence of the involucre, and it may receive similar treatment to the Spleenworts. Sori dorsal, linearoblong, attached to the primary veins. Involucre the same shape as the sorus and quite inclosing it, bursting in an irregular line down to the centre.
A. Brunoniana (Brown's).* fronds often 1ft. to 2ft. long, 1/2ft. to 1ft. broad; pinnae 3in. to 6in. long, 1in. broad, entire. sori confined to the anterior vein of the first fork. Himalayas, up to 6000ft., &c. SYN. Asplenium javanicum.