Orchidee. FLORA OF TASMANIA. 15 
the labellum, two inner petals similar to the sepals, and a long, pendulous, crinite lip. Column short, hooded, 
enclosing an erect, acute anther.—The C. campestris has a four- to eight-flowered spike; the flowers about half an 
inch across; labellum longer than the sepals, terminating in a ligulate point of very variable length. I find such 
great differences in the length of the labellum and its ligulate apex, in the relative length of the bracts and ovaries, 
and in the size and colour of the flowers of the different forms of Calochilus, that 1 much doubt there being more 
than one species of the genus. (Name from xaos, beautiful, and xedos, a lip.) 
1. Calochilus campestris (Br. Prodr. 320); caule 3-8-floro, sepalis lateralibus petalisgue oblique 
ovatis acuminatis, labello sepalis subduplo longiore apice appendice ligulata brevi basi biglandulosa.— 
Bot. Mag. t. 3187. C. campestris ef C. herbaceus, Lindl. Gen. et Sp. Orchid. 459. (Gunn, 919, 920.) 
(Tas. CVI. A.) 
Has. Not uncommon in moist ground, as also in poor, sandy soil: Rocky Cape and Woolnorth, Gunn ; 
Port Sorrell, Archer ; Huon River, O/dfield.—(Fl. Dec.) 
DisrarB. Tropical Australia, Brown; New South Wales, Victoria, and South Australia. 
Prats CVI. 4. Fig. 1, labellum ; 2, side, and 3, front view of column ; 4, pollen :—all magnified. 
Gen. IV. SPIRANTHES, Rich. 
Sepala lateralia labello supposita, basi brevissime saccata ; supremum cum petalis in galeam connivens. 
Labellum anticum, breviter unguiculatum, imberbe, columnam brevem amplectens. Anthera dorsalis, stig- 
mate parallela, rostello lamellato apice bifido incumbens. Pollinia 2, glandule communi affixa.— Herb 
foliose, radice e fibris crassis indivisis ; foliis angustis; scapo vaginato; floribus im spicam sepe tortam 
dispositis. 
A large and widely-diffused genus, the only Tasmanian, or indeed Australian, species of which is found in 
many parts of the globe, a very rare instance of wide distribution in the Order. The New Zealand species, which 
I distinguished in the Flora of that country as S. Nove-Zelandie, appears, according to Dr. Lindley, to be a variety 
of the Australian, differing in the narrower labellum, but not constantly.—The S. Australis is a small, herbaceous 
plant, 4 inches to a span high, with a root of thick, unbranched fibres, several linear, radical leaves, and a vaginate 
scape, terminated by a twisted spike of small, reddish, crowded flowers. Scape and spike glandular. Bracts broadly 
ovate-acuminate, as long as the ovary. Flowers 4 inch long, horizontal. Sepals and petals ovate-lanceolate, sub- 
acute; dorsal sepal and petals forming together a galea; lateral sepals rather saccate at the base. Lip hardly 
longer than the sepals, white, shortly clawed, linear-oblong or obovate-oblong, with crumpled and crenate margins. 
Column short. Anther dorsal. (Name from cepa, a spire, and avdos, a flower.) 
1. Spiranthes Australis (Lindl. in Bot. Reg. 823) ; foliis anguste lineari-lanceolatis, spica glan- 
duloso-pubescente tortili, labello oblgngo obtuso marginibus crispatis basi biligulato, columne lobulis 
lateralibus stigmate longioribus.—S. Novæ-Zelandiæ, Nod. in Fl. N. Zeal. i. 243. Neottia Australis, Br. 
Prodr. 319. (Gunn, 402, 754.) 
Has. Moist places: Circular Head, Gunn; Cheshunt, Archer.— (Fl. Nov.) 
DrsrarB. New South Wales and Victoria, New Zealand, China, India, and Siberia. 
Tribe II. ARETHUSEZ. 
Gen. V. CORYSANTHES, Br. 
Perianthium ringens. Sepalum supremum maximum, galeatum ; lateralia basi connata, una cum petalis 
 angustissimis labello occultata. ` Laien magnum, cucullatum v. tubulosum. Columna brevis, solida. 
