284 XX. ORCHIDER. [ Dendrobium. 
Sect. 3. Rurzoprum, Lindl.—Stems or rhizomes creeping, with 
scarious sheathing scales. Leaves solitary in the axils of the scales, 
: icó 
r 
(a rudimentary stem or pseudobulb). Racemes few-flowered, also from 
the rhizome. 
row to above the middle, then expanded into a broadly ovate-triangular 
acute recurved lamina, very much undulate but scarcely 3-lobed ; the 
disk with 3 raised lines or plates, even on the claw, much undulate on 
the lamina.—D. pungentifolium, F. Muell. Fragm. i. 189. 
Queensland. Brisbane river, Moreton bay, F. Mueller; Mount Lindsay, W. Hill. 
N. S. Wales. Blue Mountains, Woolls, Miss Atkinson; Hastings river, Bechler; 
New England, C. Stuart ; southward to Illawarra, A. Cunningham, Shepherd. 
9. D. rigidum, R. Br. Prod. 333. Stems or rhizomes shortly 
creeping, the young shoots covered by the membranous scarious sheath- 
i b 
in D. pugionif Raceme about as long as the leaves, the one figured 
bearing 3 flowers about 5 lines long including the broad obtuse pouch. 
Sepals * nish white tin with red,” the dorsal one broadly 
avour river, Banks and Solander.—Only known from a s 
ing the young shoots. aves articulate on broad circular scars 
or scarcely raised disks at the axils of the sheaths, ovate or oblong, 
mostly under 1 in. long, but very thick and fleshy. Ra 
rhizomes 2 or 3 in. long, with a slender rhachis, bearing from 6 or even 
fewer to above 20 flowers on filiform pedicels of 3 to 5 lines.  Bracts 
