1552 CXXVII. ORCHIDE^. [SarcocMlus.. 



4. S. falcatus (falcate), B. Br. Prod. 382 ; Bc'7ith. l<l. Austr. vi. 293. 

 Stems rarely above 2 or Sin. high, rather stout, covered by the rigid loosely 

 imbricate sheathing bases o£ the leaves. Leaves oblong, often falcate, 2 to 4in. 

 long and J to |in. broad. Peduncles in the lower axils scarcely exceeding thfr 

 leaves and sometimes shorter. Flowers usually 3 or 4, distant, white. Bracts 

 ovate, about 2 lines long. Pedicels and ovary about |in. Sepals and petals 

 nearly equal, oblong, obtuse, 6 to 7 lines long, the lateral sepals adnate to the 

 base only of the basal projection of the column which forms a canaliculate claw 

 to the labellum of about 1| lines. Labellum ascending from the end of it, the 

 lateral lobes large, ovate, the middle lobe v€ry short broad and almost scale-hke- 

 or scarely prominent, with a thick fleshy dorsal protubera,nce or solid spur ; the 

 disk with a transverse 2-lobed scale or callus between the lateral lobes. Columtt 

 short, with 2 very prominent acuminate angles. Capsules linear, sometimes Sin. 

 long.— Lindl. Gen. and Sp. Orch. 142 ; Bot. Eeg. t. 1882 ; F. Muell. Fragm. 

 vii. 97 ; Thri.vspermum falcatum, Eeichb. f. Beitr. 46 ; Fitzg. Austr. Orch. i. Pt. 5. 



Hab. : On trees of the southern ranges. 



Var. montamts. Stem very short and covered by the bases of old leaves. Leaves about 2 or 

 Sin. long, slightly falcate. Kacemes drooping, bearing a few rather large nearly white flowers ; 

 segments ovate, deeply marked in the bud by a purple line, incurved so as to form in the 

 expanded flower a cup. Labellum striped and spotted with red, this differs from S. falcatus: 

 in its shorter and thicker protuberance, broader and shorter wings, not meeting and overlapping, 

 and its shorter and broader middle lobe. Capsule 3 or 4in. long and rather thick.— S. 

 montamis, Fitzg. Austr, Orch. i. Pt. 5. 



Hab.: Main Bange, C. JS. Hartmann and others. 



6. S. Fitzgerald! (after E. D. Fitzgerald), F, Mnell. Jfraym. vii. 115 ; 

 Benth. Fl. Austr. vi. 298. Stem foliage and general aspect of S. falcatus, the 

 leaves from 8 to 6in. long. Eacemes with the peduncle 6in. to 1ft. long, the- 

 flowers of the size of those of <S'. falcatus, "snowy white spotted with rich lake or 

 maroon." Bracts small, pedicels |in. long or rather more. Sepals and petals 

 nearly equal, contracted at the base, 5 to 6 lines long, the lateral sepals adnate ta 

 the whole of the basal projection of the column as m S, oUvaceus,\)ui the 

 projection shorter and broader than in that species. Labellum not half the 

 length of the sepals, the lateral lobes ovate, falcate, scarcely IJ lines long, the- 

 middle lobe scarcely prominent, the solid dorsal protuberance short and obtuse ; 

 disk with a large very promiaent callus between the lateral lobes and a smaller 

 one just within the small middle lobe. — Fitzg. Austr. Orch. i. Pt. 8. 



Hab.: Southern localities, rare. 



G. S. olivaceus (colour of flower), Lindl. Bot. Bee/. 1839 ; Misc. 32 ; Benth.. 

 Fl. Austr. vi. 293. Stems covered with the prominent bases of the leaves as in 

 S. falcatus, but generally shorter, under lin. long. Leaves oblong, often falcate^ 

 2 to Sin. long, apparently thinner than in S. falcatus. Eacemes loose, of 2 or 3- 

 fiowers, the rhachis fiexuose, not exceeding the leaves. Bracts very small. Sepals- 

 and petals of a dull pale purple or yellowish brown, 5 to 6 lines long linear- 

 oblong, much contracted below the middle, the lateral sepals dilated at the base- 

 and adnate to the whole of the basal projection of the column. Labellum white 

 streaked with red, almost sessile, about half as long as the sepals, the lateral lobes 

 oblong-falcate, the middle lobe very short and orbicular, the dorsal solid 

 protuberance ovoid-conical, obtuse ; the disk with several very prominent irregular 

 calli between the lateral lobes. Column short with a long basal projection. 

 Capsule narrow. — F. v. Muell. Fragm. vii. 97 ; 8. dilatatus, F. v. Muell. Fragm. 

 i. 191 ; Thri.cspermwn oliveaccnm and T, dilatation, Eeighb. f. Xen. Orchid, ii. 122 ; 

 Fitzg. Austr. Orch_. i., Pt. 5. 



Hab.: 'Rockingham Ba.y, DaUacliT/ ; Moreton Bay, V. Hill. Common on the stems of trees 

 bordering the southern scrubs. 



