36 
DENDROBIUM chrysotoxum. 
The Golden-arch Dendrobe. 
GYNANDRIA MONANDRIA. 
Nat. ord. ORCHIDACEÆ. $ MALAXIDÆ—DENDROBEÆ. (ORCHIDS, 
Vegetable Kingdom, p. 173.) 
DENDROBIUM.— Supra passim. 
$ DENDROCORYNE. 
D. chrysotorum (Lindl. in Bot. Reg. 1847. sub t. 19) ; pseudobulbis clavatis 
angustis multicostatis 2-4-folus, foliis oblongis horizontalibus coriaceis, 
racemis lateralibus laxis gracilibus arcuatim decurvis pseudobulbis zequa- 
libus, bracte& basilari parvà spathaceä floralibus minimis herbaceis, 
sepalis petalisque explanatis oblongis obtusissimis planis his duplo 
latioribus, labello indiviso cucullato rotundato pubescente margine fninu- 
tissime pectinato et fimbriato. 
The Dendrocorynes, or Club Dendrobes, form a peculiar 
group in the large genus to which they belong, best perhaps 
characterized by their having a fleshy, angular stem, with 
two or more manifest articulations, one or more leaves at the 
upper end, and a lip not broken up into a tuft of hairs or 
fringes. They are as it were Bolbophylis passing into 
Dendrobes. In the group thus limited are included D. densi- 
florum, Griffithii, aggregatum, tetragonum, Veitchianum, 
speciosum, and some others formerly placed in Desmotrichum, 
a section which it seems better to limit to the species whose 
lip is broken up into a brush. 
The present species, which was imported from the East 
Indies by Messrs. Henderson, is extremely handsome. It 
differs from D. densiflorum in its many-angled pseudobulbs, 
small bracts, and curiously fringed pubescent, not shaggy, 
lip; from D. Griffithianum in its round emarginate fringed 
lip; and from D. aggregatum in the same respects, as well as 
in its great club-shaped many-leaved pseudobulbs. 
Our drawing was made in Messrs. Henderson's Nursery 
in March last. Fig. 1. represents a portion of the edge of 
the lip much magnified. 
July, 1847. o 
