Myriopteris x parishii (Davenp.) Grusz & Windham

• Region

  North America

• Country

  United States of America

• State/Province

  California

• County/Municipio

  San Diego Co.

• Coordinates

  33.0282, -116.77

• Coordinate Uncertainty (m)

  99830

• Georeferencing Method

  GEOLocate Web Application. Used GEOLocate Web Application (batch client) to georeference locality with high precision.

• Geodetic Datum

  WGS84

• Distribution

  Map all specimens of this taxon

BulLTorr-BotClub
pi.m
§ 57. A New American Fern.
By Geo. E. Davenport.
(Plate viii.)
Cheilanthes Parishii, n. sp.-—Rootstock creeping, short, clothed
with deep-brown linear-lanceolate scales, with darker, nearly black
mid-nerves; fronds stalked, 5' to 7' tall; stipes approximate, 2' to 3'
1., varying from light to dark-brown, clothed at the base with scales
similar to those on the rootstock, passing gradually into broader pale-
brown, or nearly white nerveless scales, above with more Or less de- ;
ciduous, slender pale scales and chaff ; laminae 3' to V 1., i' to i£' b.,
oblong-lanceolate, 3-4-pinnate, both surfaces scantily clothed with a
coarse, entangled, woolly pubescence composed of long, jointed, color-.
less hairs ; rachises beneath covéred with narrow, jagged or toothed !
pale-brown, or nearly colorless reticulated scales, intermixed with
hairs; pinnae alternate, unequally ovate, or oblong-ovate, obtuse,
lowermost somewhat distant; pinnules oblong-ovate, obtuse, pin-
nately divided into deeply pinnatifid, or, in the lowermost pinnae,
pinnate divisions ; segments roundish, ultimate segments largest and
3-lobed; involucres very narrow, only partially enclosing thè sori;
and formed of the slightly recurved, unchanged herbaceous margins
of the segments ; sori scanty (in the specijnens), consisting of a few
light-colored sporangia at the ends of the forked veins.
Habitat.—Crevices of rocks, desert hill, San Diego County, east
of San Bernardino, California, with Notholaena Parryi. Discovered
by Mr. W. F. Parish, of the well-known firm of Parish Bros., Sari
Bernardino, March, 1881.
Nothing definite is known of its abundance, but Mr. S. B. Parish,
who sends it, writes me that it is probably scarce, as his brother, who
dicovered it, could find only a few plants (about three) in the neigh-
borhood, after a careful search.
From the Myriophylla-Fendleri group it may be readily distin-
guished by the character of the distinct woolly tomentum ; and, more-
over, the slenderer scales on the under surface are not imbricated as
in the group, and are wholly confined to the rachises. It very much
resembles C. lanuginosa in the grayish woolly appearance of the face,
the shape Of the segments, and the narrow involucres; but differs
from that species in the character of the rootstock and the scaly
rachises beneath.
My thanks are due to Mr. Faxon for the pains he has taken with
the drawing, and more especially for the microscopical analysis, which
I was unable to make myself on account of the present condition of
my eyes.
Explanation of the Plate.—Fig. 1. Plant, natural size. Fig.
2. Lower pinna. Fig. 3. Enlarged pinnule-r-ordinary form. Fig. 4. ,
Magnified segment, showing veins and sori. Fig. 5. Sporangium.
Fig, 6. Spore. Fig. 7. a, scale from rootstock ¡È scale from lower
part of stipe i m. scalé frèmi rachis. Fig, 8. Magnified tomentum,
showing jointed hairs.
Medford, Mass., May, 1881.
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THE NEW YORK BOTANICAL GARDEN
HERBARIUM OF LUCIEN M. UNDERWOOD
PURCHASED 1903
03494595