Tan. 8116. 
RENANTHERA annamensts. 
Annam. 
OrcHIDACEAE. Tribe VANDEAR. 
RenantTuHERA, Lour.: Benth. et Hook. f. Gen. Plant. vol. iii. p. 577. 
Renanthera annamensis, Rolfe, a R. Imschootiana, Rolfe, floribus duplo 
minoribus et sepalis maculatis distincta. 
Herba epiphytica, erecta vel subscandens, radicans, 20-30 cm. alta. Radices 
crassae. Folia disticha, patentia, circa 2 cm. distantia, oblonga, obtusa et 
inaequaliter biloba, crasse coriacea, 5-7 cm. longa, 1°5-1'8 cm. lata. 
Racemi interdum ramosi, cirea 20-25 cm. longi, multiflori. Bracteae ovato- 
oblongae, obtusae, 2mm. longae. Pedicellil cm.longi. Sepalum posticam 
anguste oblongum, obtusum, concavum, circa 1‘°3 cm. longum, 3°5 mm. 
latum; sepala lateralia spathulata, subobtusa, 1°8 cm. longa, 6 mm. lata. 
Petala anguste oblonga, obtusa, subconcava, 7 mm. longa, 2 mm. lata, 
Labellum trilobum, 6 mm. longum; lobi laterales erecti, triangulares, 
acuti, carnosi, 2 mm. longi; lobus intermedius patens, cordato-orbicularis, 
obtusus, 3°5 mm. latus, basi quinque-callosus ; calear saccatum, oblongum, 
obtusum, 4 mm. longum. Columna lata, 3 mm. longa. 
Renanthera is a small Malayan genus of about ten or 
twelve known species, closely allied to Vanda, and re- 
markable for the brilliancy of their flowers. It was estab- 
lished in 1790, by Loureiro, the original species being the 
handsome f&. coccinea, a tall climber, bearing panicles of 
brilliant scarlet flowers, which is a great favourite with the 
natives of Southern China, where it has been cultivated 
from time immemorial. It first flowered in England in 
1827, at Claremont, after having been in cultivation for 
ten years or more, and three years later it was figured in 
the Magazine (t. 2997-8). Two other species have also 
been figured here, namely, &. Storiei, Reichb. f. (t. 7537), 
a native of the Philippines, less scandent in habit, and 
having larger crimson flowers, blotched with purple on the 
lateral sepals, and R&. Imschootiana, Rolfe (t. 7711), a 
dwarf Burmese species, which has the merit of flowering 
when about a foot high. 
R. annamensis, Rolfe, is much like the last-named 
species in habit, and indeed was taken for it until it 
bloomed, when the marked differences in the size and 
colour of the flowers at once proved that it is distinct. 
It was discovered in Annam by Mr. W. Micholitz, a 
JANUARY Ist, 1907, 
