Tap. 8452. 
DENDROBIUM Imruurnt. 
— 
New LHebrides. 
DeNpRoBIUM, Swartz; Benth. et Hook. f. Gen. Plant, vol. iii. p. 498. 
Dendrobium (Ceratobium) Imthurnii, Rolfe in Kew Bulletin, 1912, pp. 131, 
206; a D. untennato, Lindl., caule multo altiore et crassiore, foliis multo 
latioribus, labello longiore et petalis brevioribus differt. 
Herba epiphytica. Caules aggregati, 1-1°25 m. alti, basi 2°5-3 cm. lati, supra 
attenuati, pluriarticulati, foliosi. Folia disticha, elliptico-oblonga, obtusa 
vel apiculata, valde coriacea, 7-10 cm. longa, 3-5-5 em. lata. Racemt 
axillares, prope apicem ramorum producti, circiter 85 cm. longi, suberecti, 
multiflori.  Bracteae late triangulari-ovatae, acutae, 2-4 cm. longae. 
Pedicelli 4-5 em. longi. Flores mediocres, albi, labelli lobis lateralibus 
lilacino-lineatis.. Sepalum posticwm oblongo-lanceolatum, acutum, spiraliter 
semitortum, 2 cm. longum; sepala lateralia similia, basi obliqua, et in 
mentum triangulare acutum 1 em. longum extensa. Petala subpatentia, 
linearia, acuta, basi attenuata, supra paululo dilatata et torta, 3-3°5 cm. 
longa. Labellum trilobum, 2°5 cm. longum ; lobi laterales oblongi, obtusi, 
minute crenulati; lobus intermedius obovato-lanccolatus, acutus, minute 
crenulatus, 1°3 cm. longus, circiter 6 mm. latus; lamellae per discum 
parallelae 8, prope apicem dilatatae, truncatae et minute crenulatae. 
Columna oblonga, 6 mm. longa.—R. A. RoLFE. 
The striking Dendrobium—perhaps the most robust of © 
all the species in cultivation, for its pseudobulbs are over 
three feet and sometimes over four feet in height—which 
forms the subject of our illustration is one of the novelties 
for whose introduction horticulture is indebted to Sir 
Everard im Thurn. It was met with by Sir Everard, when 
Governor of Fiji and High Commissioner of the Western 
Pacific, in the island of Efate, one of the New Hebrides, 
and was presented by him to the national collection at Kew 
on his return to Europe. It is, as Mr. Rolfe points out, 
most nearly allied to D. antennatum, Lindl., but is a much 
taller plant, with broader, thick and rigid leaves, with 
stouter pseudobulbs as thick as the human thumb, and with 
relatively shorter petals. D. Lmthurnu 1s thus a very readily 
distinguishable species and one worthy to commemorate the 
services to science of its distinguished discoverer. At Kew 
the plant from which the material for our figure has been 
derived has thriven well in a tropical house ; 1t flowered for 
the first time in September, 1911. 
SepTeMBeER, 1912. 
