360 MR. HENRY RIDLEY ON ORCHIDEX AND 
A straggling, stiff plant with very short racemes of small and 
inconspicuous flowers of a yellow colour, with a pinkish tint at 
the mouth of the spur. 
SaccoLaBIuM TENUICAULE, Hook. f., Fl. Brit. Ind., vi. p. 64. 
Hab. Penang: Government Hill, West Hill, Curtis ! 
Perak: Scortechint. 
S. (§ Micrayrua) tuistronium, Ridl., sp. nova. Caulis 15 ped. 
longus; radices elongate, crass, teretes, grisee. Folia 12 poll. 
longa, ferme } poll. crassa, plurima, subteretia, canaliculata, 
atroviridia. Racemus 6 poll. longus, gracilis, ramis 2. Bractew 
remote, minute, ovate, acute. Flores plures, parvi; pedicelli 
$ poll. longi, rubri. Sepala oblongo-ovata, obtusa, rosea obscure 
maculata. Petala sepalis minora, oblongo-obtusa, rosea obscure 
maculata. Labellum cum sepalis subeequilongum, albo-hyalinum ; 
lobi laterales majusculi rotundati, medius cymbiformis acutus 
in utroque latere a lacinif parva lineari auctus. Calcar sigmoi- 
deum, obtusum, cum pedicello wquilongum. Colwmna alta, 
alba. Anthera ovata; rostrum longum; pollinia parva, globosa, 
canaliculata; caudiculus longus, tenuis, apice spathulatus ; 
discus rotundatus, minutus; rostellum longum, basi latum, 
apice gracillimum. Stigma longum, latum, profundum. 
Hab. Siam: Pungah, C. Curtis ! 
A slender plant with something of the habit of a Luisa and 
very small flowers in few-branched slender panicles. The 
rostellum, which is very long, appears to arise very far down 
the column. The leaves are nearly terete. 
S. (§ Micrantam) ruaveoium, Ridl., sp. nova. Caulis 1 ped. 
longus, vix } poll. crassus; radices longe, teretes. Folia 
3 poll. longa, } poll. lata, coriacea; vagine } poll. longe. 
Racemi 2-3 poll. longi, basi nudi teretes; rhachis incrassata, 
sursum flexa. Bractew parvee, ovate, acute, persistentes. 
Flores plures, singulatim expansi; pedicelli } poll. longi. 
Sepala oblonga, obtusa, flavescentia in dorso rubro-carinata. 
Petala minima, oblonga, acuta, obliqua. Labelli lobi laterales 
lati quadrato-rotundati, medius brevissimus triangularis ; callus 
linguiformis; calcar 3 poll. longum, calceiforme, obtusum. 
Columna crassa, brevis, subquadrangularis; clinandrium pro- 
fundum. fRostellum longum, sursum curvum, integrum, canali- 
culatum. Anthera tenuis, ovata, rostrata; pcllinia 2, globosa ; 
caudiculus tenuis, linearis. 
