48 CONSPECTUS TABULARUM. 
Fig. 1, specimen; natural size. Fig. 2, back sepal and the two petals; 3, label- 
lum ; 4, lateral sepals ; 5, anther and column; 6, rostellum, with the processes of the 
column ; 7, pollen masses; magnified. 
174, MYSTACIDIUM GRACILE, Harv. ( Orchidea.) 
M. gracile: foliis . . .; sepalis petalisque ovato-lanceolatis obtusis, 
labelli limbo ovato-lanceolato undulato calcare unciali filiformi. 
Has.—Klaklazale Berg, Beaufort, 7. Cooper, 271. Dargle Farm, Natal, Mrs. 
G. Fannin, 95. (Herb. T.C. D.) 
Descr.—A stemless epiphyte. Roots asthick as packthread. Leaves 
unknown. Racemes many-flowered. Pedune. 2-3 inches long, filiform. 
Bracts obliquely cup-shaped. Sepals and petals ovato-lanceolate, ob- 
tuse, flat. Zabellwm with a slender spur, about an inch or 1} inch long, 
the limb spreading, resembling the petals. 
This species is almost intermediate in size between M. pusillum and 
M. filicorne. The roots are very much more slender than those of M. 
filicorne, and more robust than those of M. pusillum. The leaves, at 
present unknown, may afford additional characters. 
Fig. 1, a specimen; the natural size. Fig. 2, perianth; 3 sepal; 4, petal; 5, label- 
lum; 6, apex of rostellum and processes; 7, pollen masses; magnified. 
175. MYSTACIDIUM FILICORNE, Lindl. ( Orchidee.) 
M. filicorne : foliis lingulatis falcatis apice oblique emarginatis, 
sepalis petalisque lanceolatis acuminatis, labelli limbo conformi calcare 
sesqui-bi-unciali. Lindl. in Hook. Comp. Bot. Mag., 2, p. 206. Limo- 
dorum longicornu, Sw. Epidendrum Capense, Linn. Angrecum Capense, 
Lindl. Orchid., 248. 
Has.—On trees in Uitenhage, Albany, Caffraria, and Natal. (Herb. T. C. D.) 
Descr.—A nearly stemless epiphyte. Roots 1-14 lines diameter. 
Leaves 4-6 inches long, 4-inch wide, rigid, more or less falcate, disti- 
chous, obliquely and deeply emarginate at the apex. Racemes curved 
or pendulous, many-fiowered, secund. Pedune. often flexuous. Petals, 
sepals, and the limb of labellum lanceolate or linear-lanceolate, acumi- 
nate, undulate. Spur of labellum 14-2 inches long. 
This very pretty species, on which Lindley founded his genus MMys- 
tacidium, is distributed throughout the forests of the Eastern Districts, 
Caffraria, and Natal. I have received it from most of my kind cor- 
respondents on and beyond the frontier, and specimens from widely sun- 
dered stations agree in size, form of petals, &c.; so that I have more 
confidence in founding the two additional species here figured, on cha- 
racters derived partly from comparative size; though such characters 
are commonly unsatisfactory. Other minute differences may be seen in 
the rostellum and its processes, as well as in the lobes of the perianth. 
Fig. 1, a specimen; the natural size. Fig. 2, sepal; 3, labellum; 4, petal; 5, 
anther, on the column; 6, apex of rostellum and processes; magnified. 
Se ee 
