B. hedgosmum flowers in the spring, and its blossoms, after 

 undergoing the change described above, continue in beauty for 

 many weeks. It requires no particular treatment. Botanically, 

 it is allied, though not very closely, to the plant already figured 

 in this work {supra, Tab. 5454) under the name of B. margi- 

 natum, respecting which I fell into an error that I am glad to 

 take this opportunity of correcting. As the circumstances that 

 led to the mistake were somewhat peculiar, I may perhaps be 

 allowed to relate them ; they were as follows : — Messrs. Low 

 had received, in 1863, from Mr. Parish several new Bendrobia, 

 among which was one that came to them under the name of 

 D. xanthophlebium, and on which several flowers were speedily 

 produced. When collating these by the aid of Dr. Lindley's 

 admirable paper (in the Linnean Transactions) on the Orchid- 

 ology of India, I passed over altogether the species ranged 

 under his " nigro-hirsute " section, because not a trace of black 

 or any other hair was to be found on the smooth slender stems 

 of our plant. Then, as I altogether failed to find it among the 

 other sections of the genus, I naturally concluded that it must 

 be new, and gave it accordingly the name of B. marginatum, in 

 allusion to the white edges of its lip. When, however, after the 

 lapse of a few months the fresh growth commenced, I found to 

 my surprise that the young stems were abundantly clothed with 

 black hairs, & circumstance that led me to turn once more to 

 Dr. Lindley's paper, and here, in the " nigro-hirsute " section 

 that I had previously passed by, I instantly recognized the plant 

 under its true designation of B. xantliophlebium. The latter 

 name must therefore be restored, and my name of B. margi- 

 natum cancelled. 



Descr. Stems erect, clustered together, about a span long, 

 when young clothed with small black hairs, which speedily fall 

 off. Leaves narrow, short, and leathery, unequally emarginate 

 at their points. Flowers in pairs, opposite the joints of the 

 leaves, and freely produced over the whole of the upper half of 

 the stems, exuding a delicious fragrance resembling Wallflower. 

 Sepals and petals nearly equal, scarcely an inch long, ovate- lan- 

 ceolate, acute, turned slightly backwards, presenting a polished 

 surface resembling ivory, and of the purest white. Lip about 

 the same length as the petals, three-lobed, its lower portions 

 erect, stretching forwards, acute, of a greenish tint, its central 

 lobe oval, pointed, recurved, yellow, with rich orange furrows 

 along its disk; the mentum very small. Column about the 

 length of the lower lobes of the lip.—/. B. 



*ig. 1. Front view of lip and column. 2. Pollen-masses :— magnified. 



