; ' FLORA OF TILE ISTIDIUS OF PAXA^A. 229 
1052- Pteropsis angusiifotia^ Desv-, Presl, I c. p. 225, — J. Sm. L c. p. 67. — T^enitis angustifoUa^ 
Sprcng. Sjst. vol iv, p. 42. Near the city of Panama; growing on trees. 
St, Vincent (Caley)^ British Guiana (Schomburgl<). 
1053. Drvomexis (Fee's Gen. Pih) /jlantaf/hiea^ J. Sm. — Dry)}aria jjJautaj/tm'a^ J, Sm. Gen. 
Fil. 1. c. p. Gl. — Polypodium plant agmeumy Jacq, Collect, ii. p. lOi. t, 3. f. 1. — WilM. 1, c. p. 161, 
(Plum. Fil. t- 128.) — Hook. Ex. Fil. t. 114. — Phymatodes pfantaginea^ Prcsl, Island of Chirambira, 
Southern Darion, 
St. Vincent (Caley), Guadaloupe ex herb- Mus. Paris. 
In my * Genera Filicnm' this species 13 placed under Drynaria ; but, on reviewing that genuSj I find 
that both J), plantaginea and -D. menisocarpon differ frmn true Drynaria in having adherent vernation 
which renders it necessary to separate them from their former allies. In my herbarium they have long 
stood as a distinct group ; and now that M, Fee has characterized 7>- menisocarpon as a genus uuder the 
name of Dryomenis, I adopt it, and add to it the present species, and also a magnificent undescribed 
species from New Granada {D. Purdiei). /In natural afEnity this genus ranks with Dictyopteris^ and with 
As^ndimn and Uypoderris^ differing from the former in its more compound venation, and from the two 
latter by its naked sori ; but, according to Fee, Polypodium planlagincum of Jac^uin is an indusiate 
species, and therefore belongs to Aspidiem. He is ^^uite right so far, as regards specunens from Guiana and 
the Amazon, which he refers to that species ; these specimens being furnished with a large peltate indu- 
slum, and in aspect slightly differing from the present, as also from the West Indian specimens oiP. plan^ 
tagineum, in which, after careful examination, I can find no trace of an indusium even in the early stage of 
the sorij and the structure of the sorus is such as to warrant me in believing it to be a gymnosorous species. 
^ This is another instance of species having the same habit and general appearance, but differing, in some 
having indusiate sori and others naked sori. Under such circumstances, I am induced to consider the 
presence and absence of an indusium to be of much less importance as a technical chai^acter than It 
has hitherto been viewed. In Aspidie<s there are many species which, after the indusium haa fallen, can 
scarcely be recognized as specifically distinct from species oi Polypodieds^ whieli normally have no indusium; 
and as that organ is very fugacious, soon coming to maturity and disappearing, the consequence is that 
many specimens of indusiate species, when collected fully matured, arc referred to Pohypodiem, while 
younger fronds of the same species, before the loss of the indusium, are placed in Aspidic^, of which 
there are many examples ia Herbaria. Therefore, in a natural arrangement of species, these two tribes 
must necessarily be amalgamated. 
** EREMOBRYA. 
Fronds in vernaiion lateral, solitary, md ultimately separating from the axis by a special articulation. 
1054. LoPHOLEPis piloselloides, J. Sm. 1. c. p. m.—PohjpoUluin jnloselloides, Linn., WilW, 1. c 
p. 174. Paiiamaj on trees. 
Jamaica (Heward, Wilson, Purdie), St. Vincent (Caley).— v. v. Hort. Kew. 
1055. Lepicystis incana, J. Sm. 1. c. p. oQ.— Polypodium incanum, Linn. ^Villd. 1. c. p. 174.— 
Nomcn vernacul. " Doradilla dc palo." Common in woods, groi^dng on trees. 
Jamaica (Heward, Pui-die), Brazil (Miers), United States (Herb. Hooker), Ecuador (Seemann).- 
V. V. llort. Kew. . u t> « 
" The whole plant is used for preparing cooling draughts by the mhabitants. —B, >b. 
