Caec. et Ed. Seler 2604(Herb. Ames); Chiapas, E. of Comitdn, on old 
oak trees above Sta. Maria de los Arcos, in forest, 1500 meters alt., 
April 1, 19386, Otto Nagel 5654 (Tyre in Herb. Ames No. 52257). 
GuaTeMaALA: Chimaltenango, pine forest, Cerro de Tecpam, region 
of Santa Elena, 2400-2700 meters alt., December 26, 1988, P. C. 
Standley 60925 (Herb. Field Museum); Quezaltenango, on trees along 
forested ravine, leaves stiff, firmly subcoriaceous, grass-green above, 
paler beneath, Volean Santa Maria, between Santa Maria de Jests, 
Los Mojadas, and summit of voleano, 1500-3000 meters alt., January 
12, 1940, J. A. Steyermark 33962 (Herb. Field Museum); Sacatepe- 
quez, origin near San Juan, about 1700 meters alt., 1983, Margaret 
W. Lewis 85 (Herb. Ames). 
2. Ponera juncifolia Lindley Gen. & Sp. Orch. PI. 
(1881) 114. 
Nemaconia graminifolia Knowles & Westcott Flor. 
Cab. 2 (1838) 127. 
Ponera graminifolia Lindley in Bot. Reg. 25 (1839) 
Mise. p. 17. 
This species is outwardly distinguishable from all other 
species of Ponera by its weak, slender stem, its narrowly 
linear, grass-like leaves and its distinctly 3-lobed lip. 
Lindley, in comparing P. graminifolia with P. junei- 
folia, wrote: ‘‘ Having received flowers of it from Mr. 
Barker, I find that it agrees in every essential particular 
with the structure of P. juncifolia; so nearly indeed that, 
if the leaves of the two were not very different, some 
doubt might be entertained of their being specifically 
different.” 
Lindley evidently did not see the leaves of P. gram- 
inifolia since he said that only the flowers were sent to 
him by Barker. He probably relied on the description of 
the species for his reference to the leaves. We have not 
found this supposed leaf difference to be of specific value. 
The leaves of P. juncifolia were described as subulate, 
canaliculate and secund, whereas those of P. graminifolia 
were described as linear. The leaf-sheaths of both have 
been described by Reichenbach, Lindley and others as 
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