23 
rhizomate moniliformi, foliis brevis lanceolatis subundu- 
latis acutis, floribus solitariis, sepalis petalisque linearibus 
acuminatis incurvis, labello trilobo columnæ adnato laci- 
niis lateralibus rotundatis erectis intermedia triangulari 
acuminatä, sepalis lateralibus labello suppositis eique 
adnatis.— — Brazil——Flowers small, yellowish green. 
I presume that Brazil is really the native country of this, 
and that it was a mistake to assign it to Mexico. 
2. E. miserum (Lindl. in Bot. Reg. 1841, misc. 62.) ; caulibus 
ovalibus exuviatis compressis aggregatis, foliis . . ... ; 
scapo brevissimo subbifloro, spathà bivalvi pedunculis 
subæquali membranaceâ, sepalis ovatis acutis, petalis 
linearibus, labelli trilobi lobis lateralibus rotundatis in- 
conspicuis intermedio truncato emarginato, callis nullis. 
—-—Mexico.——Pseudobulbs about half an inch high. 
The scape, peduncles, and ovaries, taken together, are 
about the same length. The flowers are a dull, dingy, 
greenish-brown, not unlike those of E. musciferum. 
3. E. cespitosum (Pöppig & Endl. n. g. & sp. pl. 2. t. 101.); 
caule repente, pseudobulbis cylindricis diphyllis, foliis 
ovali-lanceolatis acutis, floribus in sinu folii paucis bre- 
vissime spicatis aut sessilibus, sepalis subæqualibus 
lanceolatis, labello integro transverso reniformi late- 
ribus rotundato antice retuso ac breviter apiculato nudo. 
— —Peru.——This appears to differ from E. pygmæum 
in little, except having a very short middle lobe to the lip. 
4. E. serpens (Lindl. in Benth. pl. Hartweg, p. 149.) ; pseudo- 
bulbis oblongis 2-3-phyllis, foliis ovato-lanceolatis acutis- 
simis, labello cochleato serrulato levi, capsula ovali 
triquetra.— — Peru.—-——This must be a pretty plant. 
The flowers are rather large, and deep violet, and the 
pseudobulbs so crowded together that they must form a 
carpet when growing as in their wild state. It is re- 
markable that no straps appear to be connected with the 
pollen-masses in this species, but some powdery matter 
is formed in its stead. It is a mountain plant, creeping 
among Lichens. 
$ DIACRIUM. 
Diacrium, Lindl. l. c. 
This section may at first sight seem to merge in Ency- 
clium ; for the chief difference previously pointed out by me, 
