Tas. 8252. 
DENDROBIUM Bronekarru. 
Indo-China. 
ORCHIDACEAE. Tribe EPIDENDREAE. 
DENDROBIUM, Swartz; Benth. et Hook. f. Gen. Plant. vol. iii. p. 498. 
Dendrobium Bronckartii, Wildem. in Gard. Chron. 1906, vol. xxxix. p. 380; 
Rev. Hort. Belge, 1907, p. 369, fig. 67 et ic. col.; a D. thyrsifloro, Reichb. f., 
racemis amplioribus et laxis, bracteis pedicellisque fere duplo longioribus, 
et floribus roseis differt. 
Herba epiphytica, elata. Caules elongati, teretes, sulcati, foliosi, circa 60-90 cm. 
longi, vaginis membranaceis vestiti. Folia ovato-oblonga, subacuta, 
coriacea, 10-12 cm. longa, circa 4-7 em. lata. Racemi axillares, penduli, 
circa 30 cm. longi, laxiflori, multiflori, basi vaginis tubulosis imbricatis 
vestiti; bracteae lineari-oblongae, obtusae, submembranaceae, 1°5-3 cm. 
longae; pedicelli graciles, 4-5 em. longi. Flores speciosi, dilute rosel, 
labelli disco macula aurantiaca magna ornato. Sepala patentia, late 
elliptico-oblonga, obtusa, circa 2°5 em. longa. Petala elliptico-ovata, 
obtusa, 2°5 cm. longa. JLabellum breviter unguiculatum, suborbiculare, 
obtusissimum, 2°3 em. longum, margine minute denticulato, disco velutino, 
lobis Jateralibus involutis. Colwmna oblonga, lata—R. A. RonrE. 
A recent addition to the genus, D. Bronckartii is most 
closely allied to the familiar D.-thyrsiflorum, Reichb. f., but 
is readily distinguished by its larger size, its ampler and 
laxer inflorescence and its light rose-coloured flowers. The 
species was introduced from the mountains of Annam in 
Indo-China by the collector whose name it bears, and the 
plant from which the drawing now given has been made 
was purchased in 1906 from Mr. Verdonck of Ghent. 
_ Its general resemblance and evident aflinity to D. thyrsi- 
Jlorum had led to its cultivation under the conditions suitable 
for that species; abundance of heat and moisture, with very 
little shade during summer when the plants were in growth, 
an intermediate temperature with very little moisture from 
October until the flower-buds showed signs of activity, when 
a good soaking at the root and tropical conditions were 
again afforded. Like D. thyrsiflorum, D. densiflorum, D. 
Farmeri and the other members of the same group, this 
species is remarkable for its large, handsome flowers disposed 
May, 1909. 
