i t
" N T ' . - ï
o. jT.oCoulsri, Hook. & G re v . Frond very thick and coriaceous, cartilagitious-
•o-iiied. 2 to 12 inches long, broadly ovate, pinnatifid into broad linear-oblong obtuse
mpiiis- areoles revularlv formed; sori very large.— Vol. I ., t.segments; areoles regularly formed; x.xvi., p. 19 3 .— British
Columbia to California.
* * Fronds scurfy beneath with appressed scales.
p . in o anum, Swartz. Fronds evergreen, contracted when dry, scurfy beneath
with'ronndish or ovate peltate scales, nearly, s'mootii above, i to 6 inches lo n p pinnatifid
into oblong obtuse entire segments; areoles rare in the plant of the U. S. Vo l. I., t. xxvi.,
p. iQj.—InclIana and Virginia to Florida and Texas.
S 2 PiiLEBODiUM Veins forming narrow empty areoles along the midveins, and outside
o f these'larger ones commonly enclosing Uvo veinlets which bear a sorus at their united tips;
outside o f these are numerous empty areoles.
p. aureum. L . Fronds subcoriaceous, smooth, usually glaucous beneath, i to 3
feet lo’n-'ovatT.^pinUtifid'into'very large oblong-lanceolate somewhat wavy-margined segments
;'sori large, forming one or two rows each side the raidveins.—Vol. I., t. xvi.. p. 1 1 5 .
—Florida.
§ 4 Campyloneuron. Frimary veins running straight from the midrib to the margin,
connected by several rows o f arched transverse veinlets, the areoles w tlh fr e e often sonferous
veinlets extending from the inner sides o f the areoles.
o p . P h y lli t i is , L . Frond chavtaceous, smooth, i to 3 feet long, linear-lanceolate,
entire ; areoles in from 6 to 12 rows, sori in a double row between the primary veins.—
Vol. I ., t. X
GYMNOGRAMME, D e s v .
I. G. t r ian g uU a r is Kaulf. Fronds deltoid or pentagonal, 2 to 5 inches long and
nearly as wide, pinnate with once or twice pinnatifid pinnte,the lowest pair much the largest;
lower surface covered with yellow or white powder.— Vol. I I . . t. xlviii., p. 1 5 .— Bnti.sh
Columbia to California.
2 G- h isp da. Mett. Fronds pentagonal, i to 3 inches broad and long, pinnate with
once or twice pinnatifid pinrae, the lower pair much the largest; upper surface hispid; lower
surface tomentose.—Vol. II., t. xlviii., p. 19.—Western Texas to Arizona.
NOTHOLÆNA, R. B rown.
* F ro n d s scaly beneath.
I N s in u a ta Kaulf. Fronds coriaceous, 6 to 24 inches high, narrowly oblong-linear,
pinnate, pinnaj numerous, roundish or ovate, obtuse, often sinuate or sinuately lobedHpw^er
surface covered with ovate ciliated scales; upper s
uface more or less scaly also.—Vol. I.,
t. XX.XÌX., p. 293. — Texas to Arizona.
*Fronds tomentose beneath.
•K- Fronds pinnate with pinnately lobed pinnce.
N - fe r ru g in e a . Hook. Fronds linear-lanceolate, 4 to i 3 inches long, subcoriaceous
grayish-villous above, heavily tomentose beneath ; pinnte numerous, ofalong-ovate,
half an indi long, pinnatifid into little oblong lobes.—, Vo l. I . , t. xxxix., p. 297.— Western
Texas to Arizona.
- Fronds 3 or 4 Urn es pinnate with mi7iuie roundish crowded ultimate segments.
3. N -P a r r y i, Eaton. Fronds 2 to 4 inches long, oblong-lanceolate, tripinnate;
ultimate segments one line long, above covered with entangled whitish hairs, beneath with a
fine and heavy pale-brown tomeiitum. — Vol. II., t. Ixxiv., p. 209. Southern California,
Arizona and Southern Utah.
4. N . N ew b e r ry i, Eaton. Fronds. 3 to 6 inches long, oblong-lanceolate, tri-
quadripinnate ; ultimate segments 1-2 to 3-4 of a line long, covered, most densely beneath,
with a web of very fine wh.cish hairs. — Vol. I., t. xxxix., p. 3 0 1.— Southern ¿alifornia.
* Fronds covered beneath with a ivlnie or yellow powder.
-t— Fronds once pinnate, the pinnce with sessile segments; inferior basal segments o f the
lowest pmnce elongated and pinnatifid, the other segments entire or nearly so.
5. N . Candida, Hook. Frond 2 to 4 inches long, deltoid-ovate, second pair of pinna;
larger than the third pair; color of powder mostly white with us, yellow farther south.— Vol.
II., t. xlix., p. 2 1 .—Western Texas to southern California. (See end of conspectus.)
6. N . Ho ok e ri, Eaton. Frond 2 to 2 1-2 inches long and broad, pentagonal, lowest
e nearly as large as the rest of the frond ; the second pair smaller than
5 to Arizona.
pair of primary pinnae p
the third; po;Ucr mostly yellowish.—Vol. IE., t. xlix., p. 25.—Western Te
-f- Fronds 3 5 times pinnate; primary and secondary piiince disiinclly stalked; ultimate
pinnules very small, oval or 2--¡-lobed.
7. N . F en d le r i, Kunze. Frond 2 to 5 inches long, broadly deltoid-ovate, 4 to 5
times pinnate; rachis and all its branches flexuous and zigzag, the pinnae alternate; ulli-
inate pinnules i to 2 lines long.—V o l. I., t. ix., p. 65. — Colorado to Arizona.
8. N. d e a lb a ta , Kunze. Frond i to 3 inches long, triangular-ovate, 3 to 4 times pinnate
; rachis and branches straight, the pinnae mostly opposite; ultimate pinnules scarcely a
line long.—Vol. I., t. ix., p. 69.—Missouri to Arizona.
* Frond naked beneath, pinnately compound.
9. N . ten e ra , Gillies. Frond i to 4 inches long, oblong or pyramidal-ovate, 1 - 3 -
pinnate ; ultimate segments i to 2 lines long, ovate or sub-cordate, obtuse, smooth and green
on both surfaces.—Vol. I ., t. xliii., p. 335.—Southern Utah.
5 . V IT TA R IA , S m it h .
I. V . lin e a ta , Swartz. Fronds commonly pendent, narrowly linear, i 10 3 feet
long, scarcely twolines wide, smooth, sub-coriaceous ; sori sunken in two deepintramargina!
furrows ; sproangiamixed with twisted ribbon-like paraphyses.—Vol. I .,t . xxxviii., p. 289.—
Florida.
6. CH E ILA N TH E S , S w a r t z .
§ I. AdtantopSTS. Involucres separate, one to each fertile veinlet.
I. C- C a lifo rn ic a , Mett. Frond 2 to 4 inches long, deltoid-ovate, smooth, delicately
quadripinnatifid ; ultimate pinnules lanceolate, very acute, incised or serrate; involucres
crescent-shaped, placed in the sinuses between the teeth.— Vol I., t. vi., p. 45.—
California.
§ 2. E u ch e ie an th e s . Fwolucres more or less confiuent, usually extending over the apices
o f several veinlets, but scarcelv continuous a ll round the segment; segments not bead-like.