o 
47 
present time, we. have met with little or no success; the 
peculiarity of habit being accompanied with almost no differ- 
ences in the structure of the flowers. Indeed, it is not an easy 
matter to say how Bolbophyllum and Cirrhopetalum are to 
be strictly defined. 
- Under these circumstances, we think the most useful 
course to be taken will be to collect the species into groups, 
which shall be so limited as to bring together no species that 
do not quite correspond in habit; and then it is to be hoped 
that the arrangement will be but little disturbed, in case 
distinctions good enough for genera should be hereafter made 
out. In doing this I shall endeavour to observe as nearly as 
possible ‘the course already taken by Blume, whose plants, 
however, I have never had the advantage of examining. 
Among the crowd of species which constitute this genus, 
there is a large set, of which D. Pierardi may be taken as 
the example, all which have thin flat leaves, slender stems, 
and flowers growing uniformly in pairs from the sides of the 
stem opposite the leaves. They may be regarded as consti- 
tuting Dendrobium proper, and therefore the first step will 
be to place them in one group, of which the following is the 
enumeration. | ; 3 
Sect. 1. EUuDENDROBIUM. Stems slender; Leaves, thin 
and flat; Flowers in pairs, or threes, opposite the leaves. 
(Grastidium Blume.) 
A. Lip undivided. 
1. D. macrophyllum (Lindl. in Bot. Reg. 1839. p. 36. Sertum 
. . Orchidaceum, t. 35. Dendrobium macranthum, Bot. Mag. 
t. 3970); caulibus pendulis, foliis ovato-oblongis obtusis 
nervosis basi subeordatis, sepalis lanceolatis lateralibus 
parüm productis, petalis oblongis acutis, labello pubes- 
cente convoluto denticulato subunguiculato ovato callo 
baseos elevato transverso obsoleté trilobo. —— Manilla. 
This is one of the handsomest species. "The flowers 
are nine inches in circumference. ‘The sepals and petals 
are a clear and bright rose-colour, the lip is downy and 
deeply stained with two large broad blood-red blotches 
. . at its base. | 
2. D. moniliforme (Fu Ran, Kempf. amen. t. 865. Epi- 
dendrum moniliforme, Linn. sp. pl. 1352. Dendrobium 
moniliforme, Swartz act. Holm. 1800. p. 246. Willd. 
