TAB. LXIV. A.
P T E R IS . Presl.
P t e r i d i s s p . Aioet. P t e r i d i s Sect. C a i . o p h y l l o p t e r i d e æ . Gaudich.
Sorus marginalis, linearis, continuus. Indusium marginarium, scariosum, interius
dehiscens.— Filices plerumque intratropicoe. Rhizoma subglobosum. F ro n d es
fasciculatoe, coriaceæ aut herbaceoe, lobatæ, sæpissime pinnatim divisæ. Venæ pin-
natoe, crebræ, simplices, soepius uni-Ufurcatoe, tenues, venulisque apice obtuso libero
terminatæ, internoe aut elavatiusculæ, venulis parallelis rarissime divergentibus.— Pr.
P teris nemoralis. Willd.—P r .—A g .— ( T a b . L X IV . A.)
Our specimen is from Lappas Island, near Macao, gatl.ered hy the Rev. G. H. Vachell.
The species of this Genus, even as restricted by Presl, are numerous and mostly tropical.
Presl well observes that they scarcely differ from Lormria, except in the broad and leafy
pinnæ, pinnules, and segments, in the sori being remote from the costa, and more slender;
in the narrower i n d u s i u m a n d the fertile fronds not being different from the sterile ones.
In our P t. nemoralis, and in the example we have selected to Illustrate Lomaría
( T ad. LX IV. B. ) , the indusium seems rather to be a little intramarginal than to be formed
by the revolute margin of the frond itself. And this appearance has not escaped the
notice of Presl, who attributes it to a plica formed in drying.
T a b . LX IV . A. Fig. 1. Portion of the upper side of a fertile frond : nai. size ¡ f . 2. Smaller
portion of do. seen from beneath ; / . 3. Portion of the sorus ; / L S, Sporangia ; / . 0. Sporules
magnijied,
T A B . L X IV . B.
L O M A R IA . WiUd.
ONOCI.EA L . S t e s a n i a . B r . B l e c h n i s p . Ju c t.
Sorus marginalis, linearis, continuus. Indusium marginarium, lineare, scariosum,
continuum, a u t crenis dentibusve frondis in te rru p tum versus costam deliiscens.—
Filices tropicæ et extratropicæ. Rhizoma subglobosum aut ohliquum, rarissime
caudex arboreus quadripedalis. Frondes fasciculaiæ, herbaceæ aut coriaceoe, difformes,
simplices, pinnatifidoe, pinnatæ bipinnatoeque, fru ctiferoe angustiares. Venæ
pinnatæ, creberrimoe, internoe, uni-bifurcatoe, tenuissimæ, horizontales aut angido
obtuso exorientes.—P r .
L . Chilensis, Kaulf.— ( T ab . L X IV . B.)
Our plant was gathered in Chili by Mr Cruckshanks. The species of the Genus are
numerous ; Presl and other authors refer to it the Onoclea Spicant, h., which I rather
place in Blechnum.
Tab . LX IV . B. Fig . 1. Under-side of a sterile, a n d / . 2. of a fertile p in n a: nat. size ; f . 3,
Portion o f / . 1. to show the venation ; / 4, 5. Portions with sori ; / 6, Sporangium ; / . 7. Sporules :
—magnified.