402 BENEDICT: REVISION OF THE GENUS VITTARIA 
wv 
3. VITTARIA REMOTA Fée, Mém. Foug. 7: 26. pl. 20, f. 1. 1857 
Rhizomes erect, often associated in clumps of 5 or 6, 0.5-2 cm. 
long, about 2mm. thick in section, radially symmetrical, the scales 
lanceolate, brown, 7—I11I-costate at the base, the median costae 
considerably thickened; leaves 2-10, cespitose, 15-42 cm. long, 
the petioles purplish-brown, sparsely verrucose, solid, I-5 cm. 
long, about 2 mm. thick, nearly terete at first but soon flattened and 
angled, the laminae linear-lanceolate, broadest (6-18 mm.), about 
the middle, somewhat acuminate, below very gradually narrowed 
and marked with a dark brown stripe both ventrally and dorsally, 
the margin plane, thin and sharp, the leaf-trace single, branching 
in the base of the petiole, the midrib marked ventrally by a distinct 
angled ridge, whitish on the dorsal surface, veinlets 4-9 per cm., 
Fics. 6 and 7. Vittaria remota Fée. F1G. 6. Well-developed collenchyma 
from the stem. (Material collected by P. Wilson 81, Porto Rico. Enlarged about 
300 times.) Fic. 7. Showing spores, paraphyses, and a sporangium. (Enlarged 
about 60 times.) Two of the paraphyses, the lower two, are shown partly collapsed, 
their usual condition when dry. (From material collected by R. S. Williams 889, 
Panama.) 
intersecting 0.5-1.5 cm. apart along the margin, the areolae linear, 
with the long axes usually divergent from the midrib; soral lines 
slightly crenate, 0.5~1 mm. from the margin, in an open shallow 
groove. (PLATE 16 and TEXT FIGs. 6, %.) 
Type from Cotomsta: province of Ocaifia, altit. 2,400 m., on 
trees in forest, L. Schlim 611, 1846-52. 
