Thelasie.] OXLVIII. ORCHIDEJ:. (J. D. Hooker.) 87 



KHASIA MTS., Loll. 



Pseudolulb f in. diam. Leaves 3 by 1 in., spreading, base contracted. 

 Spike 2 in. ; bracts broadly ovate, obtuse ; flowers i in. long ; sepals broad, obtuse ; 

 petals obovate-oblong, 1-nerved ; lip obscurely 5-nerved, broadest in the middle ; 

 rostellum very long, acuminate, entire. 



5. T. khasiana, HooJc.f. Ic. Plant, ined.; scape with spike 3-5 in. 

 about equalling the solitary petioled linear leaf, spike elongate lax-fld., lip 

 elliptic-ovate subacute. T. pygmsea, Lindl. in Journ. Linn. Soc. iii. 62 (in 

 part). 



KHASIA MTS., alt. 3-4000 ft., Loll, J. D. H. 8f T. T. 



Pseudolulls |-in., depressed-globose. Leaves 2-4 by f in. Scape and spike 

 rather stout ; bracts ovate-lanceolate ; sepals ovate-lanceolate, obtuse ; petals lanceolate, 

 obtuse ; lip 3-nerved, broadest rather nearer the base than tip ; rostellum large, acute. 

 Very like T. pygmtea, but a much larger plant, without keel or wing on the 

 sepals. 



6. T. longifolia, Hook. f. Ic. Plant, ined.;- scape stout with the 

 spike 6-9 in. about equalling the solitary leaf, spike elongate lax-fld., lip 

 elliptic-ovate acute. 



KHASIA MTS. J. D. S. 8r T. T. 



Differs from T. khasiana in being very much larger, and in the acute lip. 

 Pseudolulb f-l-j- in. diam., depressed-globose. Leaf sometimes falcate, -f-l-f in. 

 broad ; flowers i in. long. 



Sect. II. OXYANTHERA, Brongn. (Gen.). Pseudobulb 0; stem short, 

 clothed with the equitant sheaths of the linear leaves which are jointed 

 at the sheath. (Oxyanthera is a very natural group). 



7. T. el at a, Hook. f. Ic. Plant, ined. ; leaves 10-14 by 1-1 1 in. tip 



rounded, scape equalling or exceeding the leaves, raceme long slender 

 lax-fld. 



PERAK, on decayed wood, King's Collector. 



Rootstock as thick as the little finger. Leaves few, sheaths 2-2^ by in., com- 

 plicate, coriaceous. Scape very slender, flexuous ; sheaths 3-4, ^ in. long, 

 membranous, lanceolate ; bracts ovate, acuminate, spreading and reflexed ; flowers 

 in., narrow, shortly pedicelled ; sepals linear-oblong, acute, 1-nerved, venation dis- 

 tinct ; petals lanceolate, acute ; lip erect, claw short broad, limb linear subacute, 

 margins waved, base broadly 2-auricled, auricles revolute; rostellum 2-partite, seg- 

 ments obtuse ; pollinia 8, shortly obovoid. Near T. carinata, Bl. (of which I have 

 seen no flowers), but the leaves are very much longer, the scape very slender, raceme 

 longer, and bracts acuminate. 



8. T. decurva, HooJc.f. Ic. Plant, ined.; leaves 4-6 in., tip narrow 

 or rounded and obtusely notched or subacute, scape very slender, raceme 

 very short decurved, bracts reflexed, lip dagger-shaped from a concave 

 cnneate base terete and fleshy beyond the middle with the crisped margins 

 inflexed and close to the mesial line. 



SINGAPORE ; at Krangi, Ridley. PENANG-, or Government Hill, Maingay. 



Leaves 3 | in. bi-oad. Scape shorter than the leaves, filiform, flexuous, sheaths 

 1-2 lanceolate ; raceme \ in. ; pedicels i in., longer than the oblong bracts; flowers 

 | in. long, pale fawn colour; sepals ovate-lanceolate acute and narrowly oblong 

 obtuse petals 1-nerved. This much resembles the figure of O. micrantha Brong., 

 which is figured as having a stout broadly ovate obtuse lip narrowed into a broad 

 short claw, base concave. The leaves of some specimens are narrow at the tip, 

 others have 2 rounded lobes. 



