Notes on AMERICAN Frrns—XIV 69 
W. Chamissoi 
Tronds stiffly ascending from 
an oblique or erect rhizome, 
the stipes short and stout (up 
to 1.5 em. in diameter). 
Blades oblanceolate to linear- 
istant 
basal pinnae often only half as 
long as the middle ones. 
Pinnae (the basal ones ex- 
cepted) close, often imbricate, 
rigidly ascending, numerous, 
nder side of segments nearly 
naked, except at an early stage; 
veins bearing numerous large, 
pale yellow, transparent resin 
glands. 
Veins arising from fertile 
costal areoles oblique, once or 
twice forked, the branches 
mostly free (at least in upper 
half of segments). 
Indusia nearly homogeneous 
rous, = resinous-slandutes at 
the bas 
Ne, DEALBATA ( 
W. spinulosa 
Fronds laxly ascending from 
decumbent 
Blades broadly ovate, not 
narrowed downward, the basal 
pinnae large, nearly or quite as 
long as the middle ones, never 
distant and reduced. 
Pinnae adjacent or all slightly 
apart, ee or laxly as- 
cénding, 
Under mi of segments brown- 
ish-fibrillose along the veins, the 
minute scales filiform or fila- 
mentous, ior eaten large resin 
glands wanting. 
Veins feo costal areoles less 
sometimes two incomplete addi- 
tional rows of areoles. 
Indusia abruptly membranous 
in the outer part, never resinous- 
glandular, a few minute capitate 
hairs often borne upon the 
margin 
rsh) Kunze.—This spe- 
Pu 
cies, described by Pursh? as Cheilanthes dealbata upon 
specimens from the ‘banks of the Missouri,” was trans- 
ferred to Notholaena by Kunze in 1848,* who properly 
regarded his own Notholaena pulchella, founded on 
Missouri material a few years earlier,’ as the same, 
and commented upon N. deaibata as “nearly related 
to N. nivea, though essentially distinct.” Subsequently, 
true V. dealbata was found to extend from Missouri and 
Nebraska southward to central Texas; but there were 
7 Fl. Amer, Sept. 2: 671. 1814. 
8 Amer. Journ. Sci. “= sds 82. 1848, 
® Bot. Zeit. 1: 633. 
