110 CHARACTERS OF TRIBES AND GENERA. 
forming nearly equal quadrangular areoles. Fertile pinne 
contracted linear, sinuously moniliform, 8 to 10 inches 
long. Receptacles compital, solitary on each lobule, forming 
a row of punctiform sori on each side of the mid.rib. 
Type. A. Meyeniana, Schott. 
Illust. Schott. Gen. Fil. t. 19; Hook. and Bauer, Gen. 
Fil., t. 91 ; Moore, Ind., p. 63, B. 
Oss.—This genus is founded on a remarkable and very 
splendid Fern, possessing the general habit of Drynaria 
coronans, but differing in the upper half of the frond being 
contracted into narrow sinuose pinnæ, and bearing a round 
sorus on each lobule, which latter character distinguishes 
it from Dryostachyum. It is also a native of Luzon. 
Species. À. Meyeniana, Schott, 
Since the publication of “Ferns, British and Foreign,” 
this rare and remarkable Fern has been introduced in a 
living state to the gardens of this country. 
25. AnrHROMERIS, J. Sm. 
Pleopletis, sect. Arthromeris, Moore's Index ; ; Polypodium sp., 
auct, and Hook. sp. Fil. ; Pleuridium sp., J. Sm. Ferns, Brit. 
and, For. 
“Surculum short and thick. Fronds pinnate, stipitate, 
2 to 3 feet long. Pinne elliptical, lanceolate, 6 to 8 inches 
long, 1 to 24 inches wide; opposite petiole short, articulated 
with the rachis; margin entire, with a narrow membra- 
neous border. Primary veins evident, costeform, straight ; 
. venules compound anastomosing. Receptacles punctiform, — 
.  eompital Sori transverse, 1 or 3 to 5 serial. | 
—.. "Type. Polypodium juglandifolium, Don. 
.. OBs.—In my Catalogue of Cultivated Ferns, and also in | 
“Ferns British and Foreign," I placed the two known ` 
species that constitute this genus under Pluridium, but | 
