J . I
P H L E B O D IU M . B r . J . Sm .
P o l y po d ium A u c t. P l e o p e l t i s Ilum h . P r e s l. S y n am m iæ sp. P re sl.
S o r i rotundati, ovales, vel ra rius oblongo-lineares, transversim uniseriales v. multi-
seriales..—-Yenss p in n a tæ seu v a rie ramosæ; venulæ a rcuatæ v . a n g u la tim anastomosantes,
externe venulas seeutidarias duas, ra ro p lu re s , transv e rsim conniventes,
apice soriferas, efficientes. Frondes simplices, in teg ræ,p in n a tifidoe v .p in n a tæ ,
membranaceæ seu coriaceæ, nudoe v . sq uamuliferæ . Sori nuno se ria tim d isp
o s iti in te r duas venas p r im a r ia s . J . Sm .
Phlebodium aureum. ( T a b . C X I I .) Polypodium. L in n .
Mr Brown first distinguished this Genus “ from Drymaria; and, from those species of
it, especially, in which the principal vein of tlie sorus is distinctly marked, the transition
is easy to Polypodium aureum, decumanum, and a few other species having anastomosing
veins, and in wiiich the sori are placed on the apices of two, or more, rarely 3, connivent
ultimate vaniuli, included in an area formed by the anastomosing secondary veins. But
these species from the identity of liabit, may be included in or appended to a more extensive
group, whose anastomosing veins form areolæ or meshes, in each of which only one
sorus exists, and that terminating a single branch. This section, wiiich may be named
Phlebodium, and whose species have either pinnate, deeply pinnatifid, or more rarely simple
fronds, appears to me to be strictly natural, though it includes several species having the
spurious indusium of Pleopeltis, and at least one with an oval, or at least oblong sorus,"
( I presume Synammia elongata, P r . T a b . CX. A.)
It is the first group, or Euphlehodium, which is here represented. The 2d, (Pleopeltis
of authors) is given at T a b . XVIII. A.
F iy . 1. Fertile segment of Phlebodinm aureum ; nat. s iz e : f. 2, 3. Portions of the same : / . 4, 5, 6.
Sporangia; / . 7. S p o r u l e sm o r e or less magnified.