ONClDltTM. 91 



On. Warscewiczii. 



Pseudo-bulbs ovate-oblong, compressed witli acute edges, mono-diphyllous. 

 Leaves ligulate-cuneate, complicate at base, 7 — 10 inches long. Scapes 

 15—21 inclies long, rendered ancipitous by opposite and alternate 

 sheathing bracts, 10 — 15 or more flowered, the floral bracts triangular, 

 acute, keeled, as long as the stalked ovaries. FloAvers 1^ inches across 

 vertically, of a uniform golden yellow ; dorsal sepal and petals oval- 

 oblong with undulate margin ; lateral sepals connate almost to the 

 apex, concave above, two-keeled beneath ; lip with a long and narrow 

 claw, at the base of which are two small auricles, the blade sub- 

 orbicular, bilobed Avith an apiculus in the sinus between the lobes ; 

 crest five-toothed. Column Avings narrow. 



Oncidiura Warscewiczii, Echb. ia Bot. Zeit. 1852, p. 693. Id. in Card. Chiou. 

 1871, p. 560, and I. (1874), p. 48. Lindl. Fol. Orcli. Oncid. No. 56. Lindenia, II. 

 t. 88. On. bifrons, Lindl. in Card. Chron, 1857, p. 84, fide Rchb. in. Gard. Chron. 

 1871, p. 675. 



Originally discovered by Warscewicz on Chiriqui^ in Veragua, 



growing upon oaks at 8^000 — 10,000 feet elevation, where the 



temperature often sinks to 5° C. (41*^ F.). It was imported by us 



from Costa Rica in 1870. It is one of the most distinct Oiicids 



ever introduced, for although somewhat resembling in its large 



spathacoous bracts Oncidium hracteatum from the same region, the 



flowers are very different in shape and colour. 



On. Warneri. 



Pseudo-bulbs ovoid-conical, 1|- inches long, green spotted Avith dull 

 purple, diphyllous. Leaves linear, grass-like, 5 — 6 or more inches long. 

 Scapes slender, erect, racemose, 8 — 12 flowered. FloAvers small but 

 showy, about an inch across vertically ; sepals and petals variable in 

 colour, sometimes pale brown, sometimes j^elloAV stained and streaked 

 with purple towards their base ; the sepals narrowly elliptic-oblong, 

 the lateral two free ; the petals similar but a little shorter and broader, 

 also apiculate ; lip bright yelloAV, four-lobed, the basal lobes rotund, 

 the anterior lobes smaller, oblong, divergent ; crest oblong thickened at 

 the posterior end and with a shallow sunk line. Colunui wingless. 



Oncidium Warneri, Lindl. Fol. Orch. Oncid. No. 125 (1855). Odontoglossum 

 Warneri, Lindl. in Bot. Reg. 1845, misc. p. 54. Id. 1847, t. 20. 



A remarkable Oncidiura, more interesting perhaps in a botanical 



than in a horticultural sense. The labellum of the flower affords a 



striking instance of the polymorphism of that organ in Oncidium, 



but its simple crest is more that of an Odontoglossum ; the absence 



of the " ears " or column wings would also bring it within that 



genus or even Miltonia; the protuberance at the base of the column 



