3 0 FLORA OF TASMANIA. {Orchideæ.
Fig. 1, column and labellum; 2 and 3, views of labellum; 4, column; 6, glands of labellum; 6, pollen:—all
11. Calad en ia c on g e sta (Br. Prodr. 324); pilosula, folio lineari, scapo l-3-úoro, floribus roséis,
sepalis petalisque snbiequilongis acumiuatis, sépalo dorsali fornicato columnam velante, labelli trilobi non
vittati glandulis atro-purpureis 4-seriatis depressis confertissimis, inñmis longioribus stipitatis, lobis laterali-
bus longioribus quam latís subacutis, intermedio atro-purpureo recurvo margine iutcgerrimo.—Lindl. Gen.
et Sp. Orchid. 421. (T a b . CXXIV. B.)
H a b . Tasmania, Paterson ; open forest land, Cheshunt and Port Sorrell, Archer.— (PI. Nov.)
D i s t r ib . New South Wales and South-western Australia.
Similar at first sight to Q. carnea, as indeed are aU the following species, but very distinct. It may be known
by the arched dorsal se]Dal, which more or less conceals the column, by tbe absence of red bands on the column and
labellum, by the long lateral lobes of the labellum, by its deep black-purple middle lobe, with entire margins, and
especially by the glands of the labellmn, which are black-puiqfie, crowded in four series, of which the basal ones
are longest, and by theii- glands being continued on to the surface of the middle lobe.—P la t e CXXIV. B. Fig. 1,
column and labcUnm; 2 and 3, labellum; 4, column;—all magnified.
12. Calad en ia alata (Br. Prodr. 324); pubescens, folio lineari, scapo elongato 3-5-flovo, periau-
thii foliolis acuminatis, sépalo dorsali fornicato columnam velante roseo-vittato, labelli trilobi vittati disco
glandulis 2- v. sub-4-seriatis, lobis lateralibus rotundatis integerrimis intermedio llavo plus minusve fim-
hm io .—-Lindl. I. c. 418 ; Smith, Ex. Bot. 104. {Gunn, 755.) (T a b . CXXV. A.)
H a b . Probably a common species: sandy soil near Hobarton, Guxm; open forest land, Cheshunt,
Archer.— {Yl. Nov.) {v. v.)
D is t r ib . New South Wales a n d Victoria.
I have refen'ed this plant to Brown’s C. alata with some hesitation; the glands on the disc of the labellum
are often in four rows, though each pair of these are irregularly disposed, and often i-un together, whilst in some
specimens there are decidedly only two rows; another important difference is in the middle lobe of the labeUum,
which is more or less crenate or fimbriate throughout its length, thus differing from Brown’s character of “ basi
utrinque unidentato;” but I find the fimbriation of the middle lobe to vary a good deal in aU the species. The
lateral lobes of the labeUum vary much in breadth.—This is a much taller plant than any other of this section,
10-18 inches high, with several (two to five) flowers (rarely one only) of a pale, dirty pink or whitish colour. The
leaflets of the perianth vary much iu size and relative shape, but aU are acuminate; the dorsal sepal arches, and is
about the same size as the petals; the lateral sepals are broader and longer. Labellum banded with piuk; midcUe
lobe yeUow. Column also banded with pink.—P la t e CXXV, A. Fig. 1 and 2, lahellum; 3 and 4, column:—
13. Caladenia an gustata (Liudl. 1. c. 420) ; pubescenti-pilosa, folio filiformi, scapo tenui 1-2-
fioro, floribus roseis, sepalis petalisque subaqualibus acuminatis dorsali fornicato columnam velante, labello
(columnaque) roseo-vittato, disco glandulis sparsis 4-seriatis, lobis lateralibus angustis integerrimis inter-
medio flavo fimbriato basi glanduloso.—C. gracilis, Br. ? Prodr. 324. {Gunn, 911.) (T a b , CXXV. B.)
H a b . Probably common; Circular Head, Cheshunt, Hobarton, etc., Paterson, Gunn, Archer.— (PI.
Oct.) {v. i;.)
D is t r ib . New South Wales and Victoria.
A. small, slender species, very siinikr indeed to C. carnea, but with an arched dorsal sepal.— Leaves veiy narrow.
Scape 4-8 inches high. Iloxoers generally solitary, pink. Sepals and petals acuminate. Labellum with
rather nan-ow, entire lateral lobes ; disc with four rows of small, scattered glands, that are produced on to the yellow
red middle lobe ; tbe latter is more or less crenate or fimbriate : in some of Mr. Archer’s specimens the toothing
is confined to the small process on each side, at the very base, and these T was inclined to refer to Brown’s C.
alata, but the glands are decidedly in foiu rows, and the middle lobe of the iabellura is also glandular,—P la t e
CXXV. B. Fig. I, column and lahellum ; 2, labellum ; 3, glands of ditto ; 4, column ; 5, pollen -.—all magnified.
Gen. XVI. GLOSSODIA, Br.
Perianthium patens ; sepalis petalisque subæ'qualibus. Labellum brevius, indivisum, eglandulosum,
basi appendice elongata instructum. Cohmna membranaceo-alata. Anlhoi-a terminalis. Pollinia^, compressa.—
lÌQxhsa terrestres, pilosoe ; radieibus tubere tunicato terminatis ; folio solitario, radicali, patente ;
scapo \-jloro, graciU, \-hracteato ; flore majusculo, caruleo, extus glanduloso ; pedicello basi bracteato;
appendice labelli linguam serpentis emulante.
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.—(?. major
is a slender plant, 5 -1 2 inches high, covered ivith 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, liuear-oblong, blunt.
1. G lo ssod ia major (Br. Prodr. 32 6 ); labello ovato aeuminato basi pubescente, appendice apice
hWoho.— Lindl. Gen. et Sp. Orchid. 423 ; Endl. Icon. t. 41. {Gunn, 608.) (T a b . CXX. B.)
Hab, Common in poor sandy soil throughout the Colony.— (Pi. Oct., Nov.) (v. v.)
D is t r ib . New South Wales, Victoria, and South Australia.
P la t e CXX. B. Fig. 1 and 2, labellum ; 3 and 4, column :— all magnified.
Tribe I I I . G a s t r o d ieæ .
Gen. XVII. GASTRODIA, Br.
Perianthii foliola in tubum apice 5-fidum basi ventricosum connata. Lahellum parvum, posticum, unguiculatum,
tubo inclusum. Columna basi antice stigmatifera. Anthera terminalis, decidua. Pollinia 4,
per paria cohærentia, e granulis magnis elastice cohærentibus.-Herbæ carnosa, erecta, aphylla, sordide
alba; 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. Tbe 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.—Aoo< an elongated tuber, full of starch and mucilage, eaten by the aborigines. Scape witb a few. remote,
scaiTous bracts. Flowers about f iiicli long. Ovaiij small. Perianlk 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 intenial smaller ones (petals). Lahellum included, posticous. unguiculate. contracted above and below the
middle, with crenulated and rather verrucose margins and mesial ridge ; claw concave from the base. Column elongated,
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 yarrrqp, a stomach; in allusion to the foim of the flower.)
1. Gastrodia sesam o id es (Br. Prodr. 35 0 ); radice tuberosa, perianthio breviter urceolato-eam-
panniate, columna elongata.—Lindl. Gen. et Sp. Orchid. 384; Endl. Icon. t. 5. {Gunn, 359, 613.)
(T a b . CXXVI.)
■ilfe