ADDISONIA 31 
(Plate 16) 
NOTYLIA SAGITTIFERA 
Arrow-head Notylia 
Native of Panama and northern South America 
Family ORCHIDACEAE ORCHID Family 
Pleurothallis sagittifera H.B.K. Nov. Gen. & Sp. 1: 364. pl. 91. 1816. 
Notylia multiflora Lindl. Bot. Reg. 11: under pi, 930. 1823. 
Notylia sagittifera Link, KI. & Otto, Ic. Pl. Rar. 43. 1840. 
Notylia pentachne Reichb. f. Bonplandia 2: 90. 1854. 
An epiphytic orchid with pseudobulbs up to an inch long, each 
earing one leaf. The elliptic- rage sagt up to six inches long 
and an in hy and a quarter wide, ather dark green; they are 
somewhat varrawed toward the pos and folded shee. and are 
abruptly narrowed to an obtuse or somewhat acute apex. The 
numerous flowers, about a half inch in diameter and on reflexed 
pedicels about a half inch long, arise from the axils of awl-shaped 
short bracts, and form a somewhat drooping raceme about six 
inches long; the raceme is on a stalk about half its length, provided 
with afewscales. The oe sepals are apple-green, about three 
eighths of an inch long, the dorsal sepal somewhat arched and 
meat, acute, the lateral sae united into a somewhat arched 
concave body, the tips free and recurved. he petals, acute and 
nearly erect, are about five sixteenths of an inch long, and a little 
ore than a sixteenth of an inch wide, pale yellowish green with 
two large yellow. spots on the lower half, curved, flat. The lip is 
about a quarter of an inch long, ascending, half it is length a rather 
stout claw; the blade is triangular-hastate, ebORE’ an eighth of an 
inch wide, fleshy, acute, white. The column, which a little 
shorter than the lip, is minutely oo with the acute beak 
recurved. There are two pollinia on a slender stalk which is 
broadened toward the apex. 
Related to Notylia incurva Lindl., a native of Trinidad, in the 
abruptly incurved beak of the column, but differing in the shape of 
the lip and in the recurved, not straight, free tips of the lateral sepals. 
Notylia sagittifera was first collected by Humboldt and Bonpland 
at Turbaco, Colombia, near the mouth of the Magdalena River, 
where it was found growing on trees at an elevation of about one 
thousand feet. By its discoverers it was placed in the genus 
Pleurothallis. Lindley, recognizing that it was not congeneric with 
Pleurothallis, in 1823 established the genus Notylia, basing it upon 
Pleurothallis punciata Ker, a native of Trinidad, and Pleurothallis 
