Tas. 7428. 
SACCOLABIUM Moorzanvm. 
Native of New Guinea. 
Nat. Ord. OncH1pEZE.—Tribe VanpEx, 
Genus SacconaBium, Bl. (Benth. & Hook. f. Gen. Plant. vol. iii. p. 578. 
Saccotanrum (Genuine) Mooreanwm ; caule brevi crasso, foliis oblongis 
lineari-oblongisve apice 2-lobis crasse coriaceis, pedunculis robustis 
decurvis viridibus purpureisve, vaginis remotis brevibus obtusis pedunculo 
arcte appressis brunneis, spicis densifloris oblongis, bracteis lineari-lan- 
ceolatis, floribus subglobosis pallide viridibus v. roseis, sepalis conniven- 
tibus lineari-oblongis obtusis concavis, petalis obovatis obtusis, labelli 
carnosi 3-lobi lobis lateralibus semi-orbicularibus erectis terminale parvo 
cymbiforme, calcare sepalis duplo longiore dependente clavato obtuso, 
columna brevi antice in brachia 2 truncata producta, anthera galeeforme 
vertice lobulato. 
S. Mooreanum, Rolfe in Kew Bulletin, 1893, p. 64. 
Mr. Rolfe describes 8S. Mooreanum as allied to S. minus, 
Reichb. f., and to “two or three other Polynesian species, 
having a peculiar decurved appendage in front of the 
column, looking down as it were into the spur.” This 
appendage, which is well shown in fig. 2 of the plate, 
seems to be a prolongation of the sides of the column or 
its clinandrium, upon the truncate face of which the very 
large gland of the pollinia rests, and may hence be com- 
pared with a rostellum. 
Mr. Rolfe further points out the similarity of this 
“appendage ”’ to what occurs in Unctfera, Lindl., a genus 
I have reduced (Fl. Brit. Ind. vi. 65) to Saccolabsum; m 
which it is seen to be a prolongation of the column itself 
into two parallel arms. This is shown in my drawings of 
both species of Uncifera (Hook. Ic. Pl. t. 2184, 21385), in 
one of which, S. acuminatum, the arms are truncate with 
the gland of the pollinia placed exactly as in S. Mooreanum, 
whilst in the other, S. obtusifolium, they are more acute, 
or rather, more obliquely truncate. In short, except for 
the beaked anther and incurved spur of the former 
the flowers of S. Mooreanum and acuminatum are 
Aveust Ist, 1895. 
