ONCIDIUM 131 



2. 0. triquetrum B. Br. in Ait. Hort. Keiv. ed. 2, v. 216 

 (1813); leaves 3-edged, keeled, linear-ligulate ; no pseudobulb ; 

 lateral sepals connate nearly to apex; lip 3-lobed, lateral lobes 

 rounded, median lobe much larger, somewhat deltoid, with an 

 apiculate apex, callus at base in front smooth, rounded, behind 

 united with column. Lincll. Gen. & Sp. Orch. 205 & Fol. Orch. 

 Oncid. 11 ; Hook, in Bot. Mag. t. 3393 ; Griseb. op. cit 631. 

 Epidendrum triquetrum Sid. Prodr. 122 (1788). Cymbidium 

 triquetrum Sw. in Nov. Act. TJpsal. ri. 74 (1799) & Fl. Ind. Occ. 

 1475. (PI. 29, f. 12-17.) Type in Herb. Mus. Brit. 



On trees ; in fi. Jan., Feb., June, in fr. Jan. ; Sivartz ! Bligli ; Mac- 

 fadyen ! Iron River, Golden Spring, J. P. 2286, Syme ! near Castleton, 

 Campbell ! Spaldings, Sullivan ! near Browns Town, 1000 ft. ; Belvedere, 

 Hanover, 500 ft. ; Harris ! Fl. Jam. 7647. 



Plant 4-8 in. high. Leaves 3-19 cni. 1., 5-10 mm. br. Peduncle erect, 

 simple or slightly branched above, shorter or longer than the leaves, with 

 a few distant triangular acute keeled sheaths below (4 -5-6 mrn. 1.), 

 few-flowered above, 7-18 cm. 1. Pedicel with ovary 11-15 mm. 1., of fruit 

 8 mm. 1. Bracts triangular, acuminate, much shorter than ovary, 2-4 

 mm. 1., sterile longer. Floivers variable in colour, white and densely 

 purple-spotted, or rose bordered with white and deeply stained and 

 spotted with crimson, lip nearly J in. 1. Sepals slightly concave, oblan- 

 ceolate, apex acute, 9-10 mm. 1., 4 mm. br. Petals triangular-ovate, 

 clawed, apiculate, as long as sepals, 5*5-6 mm. br. Lip a little over 

 10 mm. 1. and nearly as broad. Column very short, 3-4 mm. 1., wings 

 somewhat triangular with an acute apex. 



3. 0. pulehellum Hook, in Bot. Mag. t. 2773 (1827); leaves 

 3-edged, keeled, linear-ligulate ; no pseudobulbs ; lateral sepals 

 connate nearly to apex ; lip, median lobe 2-lobed, broader than 

 long, lateral lobes large, rounded, varying from considerably 

 smaller to almost the size of half the median lobe, crest at base 

 of disk consisting of three narrow calli free at apex. Lindl. 

 Gen. & Sp. Orch. 206, Fol. Orch. Oncid. 12 & in Bot. Beg. t. 1787 ; 

 Griseb. op. cit. 631 ; Coc/n. in Fl. Bras. Hi. pt. 6, 434. (PI. 29, 

 f. 4-8.) 



On trees ; in fl. April-July; Bancroft ! Macfadyen ; Blue Mts., 2000- 

 3000 ft., J.P. 2385, Morris ! Mt. Moses, 3500-4000 ft., J.P. 2385, Syme ! 

 Browns Town, Levy ! Trelawnev, Woollett ! Moy Hall, Clark ! near Trov, 

 1400 ft. ; Mabess River, 3000 ft. ; Harris ! Fl. Jam. 7362, 8656. Cuba, 

 B. Guiana. 



Plant 1-2 ft. high. Leaves 7-20 cm. 1., 7-15 mm. br. Peduncle erect, 

 simple or occasionally branched, much longer than the leaves, with a very 

 few distant short acute sheaths below (7-12 mm. 1.), many-flowered above, 

 3-6 dm. 1. Pedicels with ovary 1-5-2 cm. 1. Brads triangular, acute, 

 much shorter than ovary, 3-5 mm. 1. Floivers white with rosy tinge, not 

 large, but varying very much in size ; lip J-l in. 1. Sepals boat-shaped, 

 lateral, 2-nerved, oblong or oblong-elliptical, tapering to base, 6-10 mm. 1., 

 3 5-4 mm. br. ; median 3-nerved, concave, obovate-cuneate, acute, 5 5-9 nim. 

 1., 2-5-3 mm. br. Petals 6-10 mm. 1.. 4-5-7 mm. br., roundish-elliptical or 

 obovate, tapering to base, 3-nerved, apex rounded or apiculate, margin 

 undulate. Lip 1-3-2-5 cm. 1., median lobe 12-3 cm. br. Column very 



K 2 



