ONCIDIUM. y 



sometimes exceed 1^ inches in diameter, but are frequently much 

 less. The largest form^ known in gardens as ampliatum majus, is a 

 very handsome one on account of the singular purity of the yellow 

 of its labellum. The usual flowering season of this species is April 

 and May. 



On. anthocrene. 



Pseudo-bulbs oblong, 4 — 6 inches long, compressed, furrowed on the 

 flattened sides, diphyllous. Leaves ligulate-oblong, acute, 9 — 12 inches 

 long, 1| — 2 inches broad. Peduncles arching, 2 — 4 feet long, racemed 

 or panicled, many flowered. Flowers 1| — 2| inches in diameter ; 

 sepals and petals similar and sub-equal, oblong-lanceolate, much undulated, 

 chestnut-brown, barred and margined with yellow, the petals brighter 

 in colour than the sepals, the lateral sepals free and divergent ; lip 

 three-lobed, the side lobes small, oblong, yellow spotted with brown, 

 the front lobe with a broad claw and obovate, cuspidate much undulated 

 blade, light yellow with a broad red-brown band in front of the 

 crest. 



Oncidium anthocrene, Echb. in Linnrea, XLI. p. 102 (1877). Williams' Orch. Alb. 



IX. t. 392. 



A handsome species^ not often seen in European collections, that 

 was originally discovered by Gustav Wallis while collecting for us 

 in New Granada in 1872 — 3, and subsequently by Chesterton, neither 

 of whom divulged the locality in which it occurs. The above 

 description was taken from one of Chesterton^s plants that flowered 

 in our houses several years ago. The specific name is a fanciful 

 one, meaning " fountain of flowers/' from avBoq, a flower, and icpr)vr], 

 a fountain. 



On. aureum. 



Pseudo-bidbs ovoid, elongated, 1 — H inches long, mono-diphyllous. 

 Leaves linear-lanceolate, 4 — 5 inches long. Scapes 15 — 21 inches long, 

 erect, pale green, terminating in a 5 — 7 flowered raceme with a zig-zag 

 rachis ; bracts minute, glumaceous Flowers 1^ inches across vertically; 

 sepals and petals pale greenish yellow with a faint purplish tinge near 

 the base, the dorsal sepal and petals oblong, acute, the lateral sepals 

 longer, narrower and connate to the middle ; lip bright golden yellow, 

 the claw short and fleshy, the blade first quadrate then expanded, 

 broadly oblong, retuse, apiculate, undulate, the upjier surface finely 

 corrugated ; crest a cluster of small upright teeth with a small vertical 

 cleft plate on each side. Column wings small, toothed. 



Oncidium aureum, Lindl. Sert. Orch. sub. t. 25 (1839). Id. Fol. Orch. Oncid. No. 



67 (1855). Rchb. in Walp. Ann. VI. p. 732 (1863). Odontoglossum festatum, Rchb. 



in Bonpl. II. (1854), Apr. 1. Od. hemichrysum, Rchb. in Bonpl. II. (1854), Apr. 15. 



