TI. Hawkeri, Bull, figured at t. 8247 of this work, which is 
also a native of New Guinea. They may in most cases be 
readily distinguished by the fact that Z Hawkeri is partially 
hairy and has dark red flowers, whereas J. Herzogii is per- 
fectly glabrous and has vermilion-coloured flowers. But 
while it is thus easy and, from the horticultural standpoint, 
convenient to keep them apart, Sir Joseph Hooker points 
out that, having regard to the conformity of the two in all 
essential respects and to the circumstance that they are 
natives of the same country, there is little room for doubt 
that they are forms of the same species. This conclusion 1s 
supported by the fact that in the Kew Herbarium there are 
two authentically named specimens of J. Herzogii received 
from the Berlin Herbarium, one collected in Kaiser 
Wilhelmsland by Mr. Hollrung, the other obtained in New 
Guinea by Mr. Lauterbach, in both of which the branches 
are glandular pubescent. 
Derscriprion.—fHerb ; stout, branching, branches and 
twigs 4-angled, quite glabrous, spreading. Leaves 24-5 
in. long, opposite low down, in whorls of 5-7 higher up, 
petioled, firm, ovate or ovate-oblong or ovate-lanceolate, 
acuminate, narrowed to the base, serrulate and often long 
ciliate towards the base, bright green above, pale beneath, 
with 8-10 nerves on each side: petiole 3-2 in. long; 
glands at the base of the petiole subulate, herbaceous, 
green. Inflorescence simply pedicelled ; pedicels solitary or 
clustered, 13-24 in. long, slender, erect. Flowers showy, 
15-2} in. across. Sepals 2, ovate-lanceolate, acuminate, 
3-% In. long, pale green. Vezxillum 3-1} in. wide, ovate- 
rotund or cuneate, upper edge truncate, somewhat inturned 
in the middle, apiculate in the sinus, the midrib with a 
prominent green dorsal wing or ridge. Wings sessile, one- 
third longer than the vexillum ; lobes free at the base, the 
basal 3-1 in. long, obovate-oblong, 2-lobed, acute at the 
base ; the distal 1-11 in, long, obcordate, the base long and 
narrowly stipitate, without any dorsal auricle. Labellum 
with a cymbiform acuminate limb, about 4 in. long; spur 
2-23 in. long, very slender, incurved, red. /ilaments short, 
wide subulate ; anthers orbicular, reddish purple. 
Fig. 1, stamens; 2, pistil:—both enlarged. 
