the labellum, which is longer, narrower and more pointed than is the case with 
D. superbiens. It is hypothesized, that is, D. Goldiei is a natural hybrid between 
D. bigibbum and D. undulatum, while D. superbiens is a natural hybrid between 
D. Phalaenopsis and D. undulatum. The results of artificial cross fertilisation 
between the above species seem to confirm the theory. Stems erect and up to 
about 3 feet in height, and cylindrical in form. The leaves are lanceolate and 
rich reddish purple in colour, often netted with darker veins. The petals are wider 
than the sepals, oblong in shape, and uniform in colour. Labellum shortish with 
semi-rounded side lobes. Front lobe pointed. Same colour as petals. Flowers 
Spring, Summer, or early Winter. Al. B1. Cl. D1. El. (eb) F1. 
DENDROBIUM GRACILICAULE. Native of South Queensland and N.S.W. 
A very common species round Brisbane, and found in most of the low hilly forest 
country along the coastal areas of Queensland. It is of little value from the 
horticultural point of view, the flowers being small and often very dingy in 
appearance, but when grown in masses it is quite charming. Being so easily 
obtained it is particularly useful to beginners in orchid culture as a medium for 
their experiments in potting, etc. The stems are slender and greyish, and attain 
a length of about 2 feet. They carry 3 or 4 lanceolate leaves up to about 3 
inches in length and nearly an inch across at the widest part. The racemes are 
short and are produced from the apex of the stem, two or three racemes often 
being produced at the same time. Flowers, usually from 6-8 on a stem, are small 
(about 4 an inch across) and have pale to deep yellow petals and sepals spotted 
with reddish-brown. The labellum is lighter than the other segments, and is 
generally free from spots. Flowers are rather sweetly scented and appear in late 
Spring. Az. B3. C3. Di. El. or ES. (ea) #15: 
Syn. Dend. Brisbanense, Dend. elongatum. 
DENDROBIUM GRACILLIMUM. Native of South Queensland and N.S.W. 
Usually regarded as a natural cross between D. speciosum and D. gracilicaule. 
Stems and foliage somewhat like those of gracilicaule, but longer and stouter. 
Flowers produced on 8 inch racemes from tops of stems and sometimes laterally 
from the upper nodes. They are nearly twice the size of those of gracilicaule, 
and are wholly deep cream in colour. They are strongly scented. Al. B3. C3. 
D1. El. (ea) F7. 
DENDROBIUM GRATIOSISSIMUM. Native of Burma. 
A very pretty species with slender, rather drooping stems which reach a length 
of from 12 to 36 inches. The leaves are deciduous and sheath the stems with 
their bases. They are somewhat reddish in colour and broadly lanceolate in shape. 
Flowers are produced in twos or three in a cluster, each flower being on a pedicel 
about 14 inches long. They grow from the lateral nodes towards the end of the 
stems. Flowers are 24 to 3 inches in diameter, the sepals being lanceolate and 
very acutely pointed, while the petals are oblong and less acute at the apex. The 
labellum is broad and somewhat heart-shaped, and slightly pointed at the tip. 
136°. 
