72 
VANDA? TRICHORHIZA. 
Hairy-rooted Vanda. 
GYNANDRIA MONANDRIA—Nat. Ord. ORCHIDEM. 
Div. Anthera termiiialis, mobilis, decidua. Masses poUinis demum cereacece.^Br. 
Gen. Char. — Labellum calcaratum, cum basi simplici (breviusve producta) 
cohcmnce apterae continuum, trifidum, lobo medio carnoso. Petala paten- 
tia, distincta. Masses poUinis 2, oblique bilobse. — Br. in Bot. Reg. t. 206. 
Vanda frichorhiza; labello ecalcarato, petalis lineari-lanceolatis subaequa- 
libus, foliis teretibus. 
Plant, as it would appear, parasitic upon the trunks of trees, and throwing 
out long simple fleshy roots, which are covered with numerous soft and 
somewhat silky hairs. Stem, in the present individual, eight or ten inches 
in length, erect, slightly flexuose, cylindrical, and producing rather dis- 
tantly placed cylindrical fleshy and obtuse alternate leaves, about four or 
five inches in length, sheathing at the base. 
Flowers small, collected into a cluster from the axil of one of the leaves, and 
inserted by the base of their long pedicelliform germens upon a small 
swelling or tubercle. 
Petals five, all of them nearly linear-lanceolate in form, and of a tawny color, 
obscurely streaked with red; the three superior ones curved over the sum- 
mit of the flower, but distinct, the intermediate one somewhat the short- 
est ; the two lowermost ones rather the broadest, united below, placed un- 
der the lip, and liaving their base united with it. Lip scarcely longer 
than the upper petals, in the lower part narrower, deeply grooved, and 
purple above, convex and green beneath, the rest of it deep purple, some- 
what cordate, recurved, obscurely 3-lobed, the middle lobe the smallest, 
and obtusely emarginate. Germen long, slender, tapering at the base, 
scarcely twisted. Cdiimn deep purple, rather short, subcylindrical, ha- 
ving in front the rhomboid, concave, viscid Stigma, and at its upper ex- 
tremity a whitish, soft process, protruding from beneath the Anther, the 
top of the column covered by the convex," subhemispherical, obscurely 
2-lobed and 2-celled deciduous Anther. 
On the removing of the Anther appear the two deep yellow broadly obovate 
pollen-masses, of a substance between waxy and corneous, and having on 
their posterior side a somewhat lunate and oblique groove or furrow ; 
their bases are inserted on a cuneiform, white, subpellucid gland, and 
VOL. I C 
