NEW OR NOTEWORTHY ORCHIDS 
Epidendrum volutum Lindl. in Paxt. Flow. Gard. 
2 (1851-52) 151, fig. 215. 
Epidendrum Radlkoferianum Schltr. in Fedde Repert. 
17 (1921) 142. 
I have been unable to separate Epidendrum Radlko¬ 
ferianum Schltr. from E. volutum Lindl. In facies and floral 
structure they are so similar that attempts at specific dif¬ 
ferentiation are unwise. 
Epidendrum volutum was originally localized in Central 
Am.erica. Recent collections made by C. W. Powell (no. 
89) in Panama (Veraguas, Chiriqui) indicate a more definite 
geographical position. The type of E. Radlkoferianum was 
also collected in Panama. 
Zygopetalum trinitatis Ames sp. nov. Radices 
fibratae, albidae, glabrae. Folia oblongo-oblanceolata, acumi¬ 
nata, acuta, membranacea. Scapus gracilis, erectus vel 
ascendens, ut videtur uniflorus. Bracteae inflorescentiae 
duae, pedicellum florae subtendentes. Sepala patentia; 
lateralia undulata, lanceolata, acuta. Sepalum dorsale 
oblongum, obtusum. Petala oblonga acuta. Labellum 
simplex, unguiculatum, in laminam ellipticam expansum. 
Crista prope basim disci in laminas septem divisa. Columna 
simplex. Pollinia duo. 
Roots whitish, smooth, densely clustered. Stems ab¬ 
breviated, 1 cm. long more or less, at first concealed by the 
sheathing bases of the leaves, thickened, attenuated up¬ 
wards. Leaf jointed to a conduplicate base; lamina 7.5-13 
cm. long, up to 1.5 cm. wide, oblong-oblanceolate, many- 
nerved, acuminate, acute, pliable, longer than the scape. 
Scape erect or ascending, about 5 cm. long, 1-flowered, 
paucibracteate, slender. Pedicellate ovary up to 8 mm. 
long, slender, subtended by two bracts, the outer bract 
surrounding the base of the pedicel nearly 5 mm. long, the 
inner one oblong and acute. Lateral sepals spreading, 9-11 
mm. long, up to 4 mm. wide, somewhat undulate on the 
margin, lanceolate, tapering gradually to an acute tip, 
forming a short nientum at base. Dorsal sepal similar, 
obtuse, about 1 cm. long. Petals 9 mm. long, 3 mm. wide. 
21 
