Orchidee. | FLORA OF TASMANIA. 31 
ing is confined to the small process on each side, at the very base, and these I was inclined to refer to Brown's C. 
alata, but the glands are decidedly in four rows, and the middle lobe of the labellum is also glandular.— PrATE 
CXXV. B. Fig. 1, column and labellum ; 2, labellum ; 3, glands of ditto; 4, column; 5, pollen :—all magnified. 
Gen. XVI. GLOSSODIA, Br. 
Perianthium patens; sepalis petalisque subegualibus. Labellum brevius, indivisum, eglandulosum, 
basi appendice elongata instructum. Columna membranaceo-alata. Anthera terminalis. Pollinia 4, com- 
pressa.— Herb terrestres, pilose; radicibus tubere tunicato terminatis ; folio solitario, radicali, patente ; 
scapo l-floro, gracili, l-bracteato ; flore majusculo, ceruleo, extus glanduloso ; pedicello basi bracteato ; 
appendice Zabelli linguam serpentis amulante. 
The few known species of this genus are all of them Australian, and extremely nearly allied to Caladenia, of 
which indeed they may be considered a section, with no glands on the disc of the labellum, and a solitary, bifid, 
long appendix at the base of that organ, resembling somewhat a serpent's tongue, whence the name.—G. major 
is a slender plant, 5-12 inches high, covered with patent hairs; it has a linear-oblong, horizontal, radical leaf, one- 
or two-flowered scape, with a bract at the middle, and another beneath the flower. Flower about 1 inch across, 
pale blue. Sepals and petals pale blue, linear-oblong, blunt. 
1. Glossodia major (Br. Prodr. 326); labello ovato acuminato basi pubescente, appendice apice 
bilobo.—Lindl. Gen. et Sp. Orchid. 423; Endl. Icon. t. 41. (Gunn, 608.) (Tas. CXX. B.) 
Has. Common in poor sandy soil throughout the Colony.—(Fl. Oct., Nov.) (v. v.) 
DisrarB. New South Wales, Victoria, and South Australia. 
Dap CXX. B. Fig. 1 and 2, labellum; 3 and 4, column :—all magnified. 
Tribe III. GAsTRODIEZ. 
Gen. XVII. GASTRODIA, Zr. 
Perianthii foliola in tubum apice 5-fidum basi ventricosum connata. Labellum parvum, posticum, un- 
guiculatum, tubo inclusum. Columna basi antice stigmatifera. Anthera terminalis, decidua. Pollinia 4, 
per paria cohzrentia, e granulis magnis elastice coherentibus.—Herbe carnose, erecta, aphylle, sordide 
albe ; radice tuberosa v. elongata, torta, tereti ; scapo squamis distantibus vaginato ; floribus racemosis, pen- 
dulis, albis v. ochroleucis. 
A remarkable genus, confined, as far as is-at present known, to Australia and New Zealand, though probably 
some Malay Island and Indian plants will prove congeners. The G. sesamoides is a tall, robust, pale whity-brown, 
erect, leafless herb, 10-24 inches high, bearing a many-flowered, nodding raceme of pedicelled, tubular, pendulous 
flowers. —Root an elongated tuber, full of starch and mucilage, eaten by the aborigines. Scape with a few, remote, 
scarious bracts. Flowers about 2 inch long. Ovary small. Perianth gibbous at the base. Sepals and petals 
united into a subcampanulate, oblique tube. Mouth with three somewhat reflexed large lobes (apices of sepals), 
and two internal smaller ones (petals). Zabellum included, posticous, unguiculate, contracted above and below the 
middle, with crenulated and rather verrucose margins and mesial ridge; claw concave from the base. Column elon- 
gated, hollow on the anterior face, scarcely winged. Anther short, terminal. Pollen-masses four, united in pairs. 
Stigma a viscid depression at the base of the column ; from its base a canal leads to the cavity of the ovary. (Name 
from yaornp, a stomach; in allusion to the form of the flower.) 
l. Gastrodia sesamoides (Dr. Prodr. 350); radice tuberosa, perianthio breviter urceolato-cam- 
panulato, columna elongata.—Lindl. Gen. et Sp. Orchid. 384; Endl. Icon. t. 5. (Gunn, 359, 613.) 
(Tas. CXXVI.) 
