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12 FIELDIANA: BOTANY, VOLUME 28
valde pilosa, pills rectis, patentibus, simplicibus, unicellularibus,
1-2 mm. longis; laminae herbaceae, lanceolatae, 15-23 cm. longae,
4.5-6 cm. latae, basi gradatim reductae, apicem versus acuminatae,
apice ipso obtuso, pinnato-pinnatifidae, rhachi valde pilosa, fere
epaleacea; pinna 20-25-jugae, mediales oblongae, 2-3-2 cm. longae,
9-13 mm. latae, basales (4-vel 5-jugae) gradatim minores, infimae
subdeltoideae, ca. 12 mm. longae, 10 mm. latae, omnes sessiles,
obtusae, altae pinnatifidae, ala costali ca. 1.5 mm. lata, segmentis
5-8-jugis, 4-6.5 ram. longis, 3-5-4.5 mm. latis, obtusis, integris,
epaleaceis, basalibus alteris aequalibus, utrinque in mesophyllo et
venis longe pilosa, pilis hyalinis, simplicibus, unicellularibus,
patentibus, 1-2 mm. longis; venae 3-jugae, simplices, marginem attingentes;
sori dorsales, l-vel-2-jugae, inframediales, rotundi; indusium
persistens, subreniforme, minutum, membranaceum, raargine
longissime ciliatum; sporangia stipitata, non setosa, annulo 14-
articulato; sporae brunneae, bilaterales, ca. 40 p longae et 25 u
latae, tuberculatae.
Type in the U.S. Nat. Herb., no. 1,915,091, collected on ascent of
ledge along southwest-facing side, from beginning of sandstone
bluffs to summit, Mt. Roraima, alt. 2255-2620 m., Sept. 27, 1944,
Julian A. Steyermark 58772; isotype in herb. Chi. Nat. Hist. Mus.
In Posthumus' Ferns of Surinam this species will key to T opposite,
which it in no way resembles, differing in the few reduced
lower pinnae, few veins, obtuse pinnae and segments, and longpilose
indument on both surfaces of the frond. In the indument the
present species suggests the little-known Dryopteris longipilosa
(Sodiro) C. Chr.
Thelypteris reptans (Gmel.) Morton, comb. nov.
Poly podium reptans Gmel. Syst. Nat. 22: 1309. 1791.
Monagas: in crevices within cave entrance, Guacharo Cave, 6 kms.
northwest of Guacharo, alt. 950 m., Steyermark 62305.
Ctenitis catocarpa (Kunze) Morton, comb. nov.
Aspidium catocarpum Kunze, Linnaea 9: ,95. 1834.
ANZOA'TEGU!: along Rib Zumbador and tributary, near base of
Piedra Blanca, northeast of Bergantin, alt. 800-1000 m., 61279.
Kunze described two species, Aspidium catocarpum and A . nemophilum,
at the same time and place. Mettenius regarded these as
synonyms, doubtless correctly, and adopted the name A. catocarpum.
Christensen had a similar viewpoint, but adopted the name Dryopteris
nemophila, because this species was a larger, better developed
form and because it had page priority. These considerations, however,
have nothing to do with the choice of name. Since Mettenius
was the first to unite the two species, his choice of the epithet
catocarpum must stand.