132 Nasu: Costa RICAN ORCHIDS 
As indicated above in the synonymy, the first name applied to 
this plant is a nomen nudum ; the origin of the plant was attrib- 
uted to Trinidad. The first adequately published name seems to 
have been Pleurothallis Valenzuelana, described from Vuelta de 
Abajo, western Cuba, Reichenbach, /. c., states that his plant 
came from Cuhobas, Cuba, and indicates that it was collected 
by Poppig. Péppig employed his time as a botanical collector 
and physician, his botanical activities being principally confined to 
Matanzas and S. Elena, near Cahoba and the territory to the south 
and the southwest (Urban, Symb. Ant. 1: 130). The type 
locality of this plant is, therefore, whether one adopt the name of 
Richard or that of Reichenbach, western Cuba. 
Zygostates costaricensis sp. nov. (PLATE 8) 
Plant grayish-green. Stem very short: leaves grayish-green ; 
lower ones widely spreading, the upper ones ascending to erect ; 
sheaths equitant, 1-2 cm. long, their margins hyaline; blades 
articulated to the sheath, inequilaterally lanceolate or oblong-lance- 
olate, sometimes slightly falcate, acute, laterally compressed, 1.5-4 
cm. long, 4-10 mm. wide: inflorescence axillary, racemose, the 
rachis densely hispid with spreading hairs of variable length, the 
spreading bracts, both those at the base of the rachis and those 
subtending flowers, broadly ovate to orbicular, acute, about 2 
mm. long, partly clasping the rachis, ciliate on the margin with 
glandular hairs: flowers not crowded, on hispid pedicels which 
are shorter than the bracts: sepals free, orbicular, wing-keeled on 
the back, about 2 mm. in diameter, obtuse, the keel ciliate with a 
few teeth, the body of the sepals on the back sparingly hispid: 
petals orbicular, about 2 mm. long including the short claw, keeled 
and sparingly hispid on the back : lip papillose, incurved and arch- 
ing over the flower, concave, 4-5 mm. long when straightened 
out, green at the base, slightly dilated above where it is about I 
mm. wide when spread out, acute at the apex: the 2 appendages 
about 1 mm. long, spreading like a ram’s horns, white, papillose, — 
flattened, somewhat dilated toward the obtuse apex: column very 
slender and weak, bent back, geniculate, the rostellum with a long 
crooked beak which is recurved into a semicircle about the middle : 
anther of the general shape of the rostellum and somewhat exceed- 
ing it in length, and with a recurved tip: pollinia 4, on a long 
slender stipe which is bent back upon itself toward the apex. 
On tree-trunk in forest, Finca Navarro, vo. 680. The most 
interesting plant revealed thus far in Mr. Maxon’s collections. 
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