Tas. 7042, 
DENDROBIUM eracicicavte. 
Native of Eastern Australia. 
Nat. Ord. Oncu1pEx.—Tribe EPpIpENDREZ. 
Genus Denprosium, Sw. ; (Benth. et Hook.f. Gen. Pl. vol. iii.) 
Denvrosium (Stachyobium) gracilicaule: caulibus fastigiatis 3-6 pollicaribus 
teretibus simplicibus plurivaginatis basi vix tumidis apice 3-5-foliatis, foliis 
oblongo-lanceolatis apice 2-fidis, scapis caulibus aphyllis subterminalibus foliis 
brevioribus gracilibus nutantibus laxifloris, racemis 8-10 floris, bracteis 
minutis, floribus flavis, sepalis. purpureo-maculatis dorsali lineari-oblongo 
obtuso, lateralibus oblongo-lanceolatis falcatis obtuso, mento rotundato, petalis 
lineari-oblongis obtusis faleatis labello sepalis breviore, lobis lateralibus 
rotundatis erectis, terminali reniformi nudo disco inter lobos laterales 
3-lamellato. 
D. gracilicaule, F. Muell. Fragm. Phyt. Austral. vol. i. p. 179; Benth. Fl. 
Austral, vol. vi. p. 281. 
D. brisbanense, Reichb. f. in Walp. Ann. vi. 299. 
D. elongatum, Cunn. in Bot. Reg. xxv. (1839), Misc. 33; Lindl. 1. c. xxvii. (1841 
p- 21 (non Lindl. Gen. & Sp. Orchid.). 
D. gracilicaule so closely resembles D. Kingianum, also 
a Queensland plant, that by Herbarium specimens it is 
not easy to distinguish them ; when growing, however, they 
look widely different, as may be seen by comparing 
Plate 4527 of this work with that here given. In D. 
Kingianum the stems form elongated cones, the sheaths of 
which are deciduous and the internodes are much longer, 
the leaves are shorter, of a darker green, the flowers appear 
along with the leaves, though this is probably an inconstant 
character, the racemes are longer than the leaves, the 
flowers are larger, longer, and pedicelled, the sepals and 
petals purple, and the mentum longer and incurved. On 
the other hand, Mr. Watson, the Assistant-Curator of Kew, 
informs me that D. Kingianum is a very variable species, 
wherefore the above differential character must be received 
with caution. Though placed by Lindley and Bentham 
in the Flora Australiensis in the section Dendrocoryne, Dz 
elongatwm cannot be regarded as related to the Indian 
Frpruary Ist, 1889. d 
