Tas. 7238. 
ERIA MaArGINATA. 
Native of Burma. 
Nat. Ord. Oncuipes. Tribe EprpENDREA. 
Genus Erta, Lindl.; (Benth. & Hook. f. Gen. Plant., vol. iii. p. 509.) 
if 
Erta (Hymeneria) marginata; caulibus coespitosis e basi tenui clavati i- 
bus striatis, foliis 3-5 subterminalibus Tueati-coleags indsenlalieve asa 
natis emarginatisve, pedunculis brevibus 2-floris albo-tomentosis, bracteis 
magnis ovato- v. oblongo-cordatis flavis patenti-recurvis, sepalis lateralibus 
lanceolatis falcatis acutis 5-nerviis petalisque lineari-oblongis obtusis 
7-nerviis albis, mento rotundato, labelli recurvi pubescentis flavi rubro- 
marginati lobis lateralibus rotundatis, terminale longiore rotundato, disco 
tomentoso costa crassa ad basin lobi medii tumida percurso, et callis 2 inter 
lobos lateralis instructo. 
R. marginata, Rolfe in Gard. Chron. 1889, vol. i. p. 200; Hook, f. Fl. Brit. 
Ind. vol. v. p. 800. 
A little known plant, described originally from a solitary 
specimen, believed to have been introduced from Burma. 
Ag in almost every case of a species of Orchid, founded on 
a single individual, subsequently procured specimens are sure 
to present differences in character from what the original 
ossessed. In the present case the petals are not flushed 
with pink; the stem is fully eight inches high, instead of 
three ; the leaves lanceolate and not linear-oblong, acumi- 
nate and not obtuse, the lateral sepals are not oblong or 
triangular-lanceolate, but simply lanceolate, nor are the 
lateral lobes of the lip uncinate, though a little incurved. 
In other respects the plant here figured agrees well with 
Mr. Rolfe’s characters. 
E. marginata belongs to a small group of the section 
Hymenolena, with a cylindric or clavate stem, few sub- 
terminal leaves, short peduncles, and large coloured bracts. 
It is perhaps most nearly allied to the Khasian H. clavi- 
caulis, Wall., which has a small rounded midlobe of the 
lip, margined with purple ; and to the Ceylon LH. Lindley, 
of which the lateral lobes of the lip reach almost the same 
length as the terminal. 
JuNE lst, 1892. 
