486 



THE DICTIONARY OF GARDENING, 



Oncidium continued. 



O. diodon (two-toothed), fl. brown ; lip emarginate, square, with 

 a light yellow callus. Pseudo-bulbs like those of 0. macran- 

 thum. 1880. 



O. divaricatum (spreading).* /. produced on long, branching 

 spikes; sepals and petals yellow, blotched and barred with 

 brown ; lip orange-yellow. Summer, h. lift. Brazil, 1826. An 

 easily-grown, free-flowering species. (B. B. 1054 ; L. B. C. 1212.) 



O. dubium (doubtful), fl., upper sepal brown, edged with white ; 

 lateral ones white, with obscure purple dots; lip pandurate, the 

 front lobe brown, margined with white, lateral lobes streaked 

 with violet 1. minute, carinate, 2in. to 2Hn. long. Plant bulb- 

 less, of dwarf habit. (I. H. 1873, 184.) 



O. elcgantissimum (very elegant), fl., sepals brown, with 

 narrow, yellow bands ; petals broad, with a few yellow spots ; 

 lip very bright yellow, the anterior limb beautifully marbled and 

 dotted with" light brown, and the calli of the base with black- 

 purplish borders; panicle large, many-flowered. Winter. 

 Brazil (?), 1877. [T.] 



O. endocharis (beautiful), fl. bright orange, about five ; sepals 

 and petals cuneate-oblong, acute ; lip ligulate, with a broader, 

 rhombic, emarginate blade, with two large lamellae and three 

 teeth at the base ; raceme slender. 1884. A small species. 



O. Euryclino (Eurycline). fl., sepals and petals light reddish- 

 ochre, with a few dark bars at their base ; lip yellow, with a 

 brown spot on the isthmus; basal auricles rounded, retrorse, 

 narrower than the front blade. I. blunt. 1884. 



O. euxanthinum (beautiful yellow).* /., sepals and petals small, 

 greenish-yellow, banded with brown ; lip large, rich yellow ; 

 spikes ample, many-flowered. Brazil, 1869. A very pretty 

 species, with the habit of 0. bifolium. (B. M. 6322.) 



O. exasperatum (rough), fl. chestnut colour, having asperities 

 on the outer side of the sepals and petals ; lip yellowish, with 

 brown bars and an orange callosity. Ecuador, 1871. 



O. excavatum (hollowed).* /., sepals and petals golden-yellow, 

 spotted and blotched at the base with rich bright brown ; lip 

 golden-yellow, very convex at the base, a little hollowed out in 



Oncidium continued. 



larger flowers, while that known as radiatum has beautiful, 

 radiating, purplish-brown lines on the disk. 



O. Forbesii (Forbes').* fl. large and very distinct; sepals, petals, 

 and lip, with pale yellow edges, broad, the centre reddish-brown, 

 except the eye or throat, which is white. November. Brazil, 

 1837. A beautiful species, nearly allied to O. crispum, but of 

 stronger habit, and with much handsomer flowers. (B. M. 



O. F. Borwickianum (Berwick's). A handsome variety, having 

 the whole lip bright yellow, with feathered blotches in lieu of a 

 wide, brown, one-coloured disk, and a yellow spotted margin. 

 1879. (G. C. n. s., xi. 524.) 



O. fuscatum (brown-stalked). A synonym of Miltonia Warsce- 

 vriczii. 



O. Gardner! (Gardner's). /. brown, with a yellow lip, moder- 

 ately large. " Very near O. crispum and Forbesii, from which 

 it differs in the form and tuberculation of the lip, and the very 

 small column-wings " (Lindley). Brazil. 



O. Gautieri (Gautier's). fl. small, disposed in few-flowered 

 racemes; sepals and petals dark brown, lanceolate; lip sub- 

 cordate, semi-orbicular, crenulato-undulate, broader than long, 

 yellow, with a deep blood-red spot, from which projects a long, 

 curved, yellow horn. I. linear-lanceolate, coriaceous. Pseudo- 

 bulbs oblong, sulcate, one-leaved. Brazil, 1869. (R. G. 611, 

 Fig. 2.) 



; up sagittate ; peduncles axillary, branched, long or si 

 1. ligulate, small. Pseudo-bulbs small, glaucous, oblong, 

 duced at long intervals on the slender, creeping, filiform rhizo: 

 Columbia. 

 O. g. costaricense (Costa Rica). This is considered to be only 



a local variety, with smaller flowers. Costa Rica, 1871. 

 O. glossomystax (bearded-tongued). fl. light yellow, with a 

 few brown blotches, rather large, almost sessile, having two 

 pairs of keels on the basilar disk of the lip, all of which are 

 covered with white hairs. New Grenada, 1880. A 

 minute plant, with Iris-like leaves. 

 O. graminifolium (grass-leaved), fl. disposed in a 

 sub-paniculate raceme ; lip yellow, wedge-shaped, 

 with rounded angles. L linear-ensiform, acute, 

 erect, shorter than the raceme. Mexico. [C.] 

 O. g. filipes (thready), /..sepals and petals brownish, 

 clouded; lip emarginate, somewhat lobed; raceme 

 nearly or quite as long as the scape. (B. R. 1841, 

 59, under name of Cyrtochilum filipes; L. S. O. 48, 

 under name of 0. filipes.) 



O. g. WraysB (Wray's). fl. panicled ; sepals and 

 petals bright yellow, with deep brown spots ; lip 

 emarginate, somewhat four-lobed. (B. M. 3854, under 

 name of O. Wrayce.) 



O. grandiflorum (large-flowered), fl. closely re- 

 sembling those of 0. macranthum, but the petals 

 are more acute, and both the petals and odd sepal 

 are more crisp, embellished by a yellow border; 

 lip with a spathulate lacinia, and a quite distinct, 

 flat callus, totally wanting the keel of the middle 

 line ; peduncle very large, many-flowered. Sum- 

 mer. Columbia, 1881. A very beautiful but rare 

 species. 



inflorescence 



panicled. Pseudo-bulbs oblong-pyrifo'rm, at length 

 becoming twisted. 1869. [C.] 



O. gyrobulbon (twisted-bulbed). fl. ye 

 dark spots at the base of the lip; ir 



O. hsematochilum (bloody-lipped), fl., sepals and 

 reenish-yellow, blotched with chestnut ; lip 

 mson and rose; spikes erect, with several 



FIG. 729. PORTION OF PANICLE OF ONCIDIUM EXCAVATUM. 



front, and excavated with a deep pit in the under side ; panicln 

 much branched, sometimes bearing upwards of a hundred 

 blossoms. I. long, pale green. Pseudo-bulbs large, pale green. 

 Peru, 1840. A robust-growing species. See Fig. 729. (B. M. 5293.) 

 In a variety _ sometimes known as 0. aurosum, the flowers are 

 dark brown in the centre, and somewhat larger in size than 

 those of O. excavatum. 

 O. flexuosum (zigzag).* /. yellow, spotted with brown, rather 



. uMiumuin ^zigzag;.- n. yellow, spotted with brown, rather 

 nail, produced in abundance on a branched panicle 3ft to 4ft 

 nigh. Pseudo-bulbs flat, borne at short intervals on a creeping I 

 _=, 10 , A free-flowering species, of easy ' 

 riety ' 



stem, two-leaved. Brazil, 1818. A free-flowering specii_ 



culture. (R M. 2203.) The variety known as mjiu has"mu7h I 



petals greenish-yellow, blotc 

 rich crimson and rose; spi , 



moderate-sized blossoms. Winter. I. short, thick, 

 fleshy, dark green. h. 6in. New Grenada, 1857. 

 A compact-growing species, similar in habit to 0. 

 Lanceanum. (L. & P. F. G. 6.) [T.] 

 O. Harrisonianum (Harrison's), fl. yellowish- 

 purple, spotted ; sepals and petals linear obtuse ; lip 

 three-lobed, middle segment emarginate ; crest five- 

 lobed, downy in the centre; panicle branched, 

 many-flowered. Autumn. I. fleshy, linear-oblong, 

 acute, recurved. Pseudo-bulb sub-globose, one- 

 leaved. h. 1ft Brazil, 1830. (B. R. 1569.) 

 O. hastatum (halbert-shaped). /., sepals and petals 

 yellowish, with many brown dots ; lip yellowish-white. 

 with a darker yellow callus ; inflorescence panicled. Mexico. 

 O. hebraicum (Hebrew), fl. yellow, with dark maroon blotches, 

 growing in long, slender, short-branched panicles ; lip having a 

 small blotch on each auricle, and a similarly coloured patch 

 around and before the crests. I. cuneate-ligulate. Pseudo-bulbs 

 oblong, compressed, wrinkled. New Grenada, 1875. 

 O. Hrubyanum (Hruby's). fl. brown, barred with yellow at the 

 bases of the sepals and petals, small, in a dense panicle. 1883. 

 A curious species. 



O. Huntianum (Hunt's). A synonym of 0. carthaginense san- 

 guineum. 



