331. orchid-grower's manual. 



D. DALHOUSIEANUM LUTEUM, O'Brieti.— This distinct variety was imported 

 by Major-General B. S. Berkeley, and the stock of it was acquired by us from 

 him. The flowers are clear straw-yellow in colour, and the lip is furnished with 

 two bright mauve-purple blotches as in the type ; it is also thicker in the 

 substance of the sepals and petals. — India. 



D. DEAREI, Rchh.f. — rThis handsome and desirable species is one of the best 

 white-flowered Bendrohes in cultivation. It has stoutish terete stems 2 to 3 feet 

 high, bearing at the top a few close-set oblong-ligulate emarginate leaves, and 

 produces both terminal and lateral flower racemes both from the old and neAV 

 stems in the same way as D. superliens ; the flowers, which last several weeks in 

 perfection, are nearly 3 inches across, and produced in bold racemes of from 

 ten to fifteen together ; they are pure white, having a slight tinge of green in 

 the throat. We saw a plant of this recently in Sir Trevor Lawrence's collec- 

 tion with three spikes on one bulb, and the effect of the butterfly-like flowers 

 produced in such quantities was most charming. This plant is well grown by 

 Mr. Whillans, gardener to the Duke of Marlboro', Blenheim. — Philippine Islands : 

 Mindanao. 



Fig. — Orchid Album,, iii. t. 120 ; Vc-itch's Man. Orclt. PI., iii. p. 37. 



D. DENSIFLORUM, Wallinh. — A magnificent compact-growing free-flowering 

 evergreen Orchid. The stems are clavate, pendulous, leafy at the apex, a foot or 

 more high, the leaves oblong acute nervose, and the racemes lateral, pendent 

 from the upper joints of the stem, many-flowered. It blooms in March, April, 

 or May, and lasts from four to six days in perfection if kept in a cool house ; 

 the ovate spreading sepals and petals are rich bright yellow, and the broad 

 rhomboid serrulate retuse lip is of a deep orange colour. This is one of the 

 showiest Orchids in cultivation, and one of the choicest plants we have for 

 exhibition on account of its colour. It should be potted in peat. We have seen 

 this species bearing nearly one hundred flower spikes at one tixae.^India : Nepaul 



FjG.—'Bot. Beg., 1. 1828 ; Flore des Sitrres, t. 1397 ; Paxtim, J/aff. Dot., v. p. 121, with 

 tab. ; Wall. PL As. Bar., t. 40 ; Hook. First Cent. Orch. PL. t. 9 ; £ot. Mag., t. 2418 ; 

 Lindenia, iv. t. 187 ; Orchid Album, vii. t. 303 ; Gard. Chrvn., 3rd ser., 1893, xiv. 

 p. 123, f. 30. 



D. DENSIFLORUM ALBO-LUTEUM.— See D. thyrsi iloeum. 



D. DENSIFLORUM SCHRODERI.— See D. Schrodeei. 



D. DENSIFLORUM WALKERIANUM.— See D. thyrsiflohum Walkeria.num. 



D. DEVONIANUM, Taxt. — This is one of the most delicate and lovely species 

 of the genus. The stems are pendulous, slender, elongate, terete, proliferous, with 

 a few linear-lanceolate leaves, which fall away before the flowers are developed ; 

 the flowers are produced from the nodes, for fully three parts of the entire length 

 of the stems, w:hich sometimes attain the extent of 4 feet, they are 2 inches across ; 

 the sepals cream-coloured, faintly shaded with pinkish-purple ; the petals broader 

 than the sepals, beautifully ciliated, yellowish with a deep magenta-purple tip, 

 and the lip broadly heart-shaped, cucuUate, white with a spot of rich orange on 

 each side of the disk, the emarginate apex with a well-defined blotch of purple; 



