32 FLORA OF TASMANIA. [ Orchidee. 
Has. Dense humid forests, probably not uncommon, as at Circular Head, Table Cape, Georgetown, 
etc., Lawrence, Gunn, Archer.—(Fl. Nov., Dec.) 
Disrris. New South Wales. 
Pirate CXXVI. Fig. 1 and 2, ovary, column, and labellum; 3, front view of column; 4 and 5, pollen; 6, 
grain of ditto; 7, seed; 8, nucleus of ditto in water :—all magnified. 
Tribe IV. VANDEA. 
Gen. XVIII. DIPODIUM, Br. 
Perianthium subregulare, patens. Sepala et petala subsequalia. Labellum unguieulatum ; ungue 
magno, canaliculato, excavato ; marginibus callosis, e columne basi productis; lamina cum ungue articulata, 
oblonga, integra; disco apicem versus barbato v. glanduloso. Columna semiteres, ungue labelli zequilonga. 
Anthera terminalis, decidua. Pollinia 2, globosa, cereacea, biloba, caudiculis distinctis glandule stigmatis 
affixa.—Herbe glabra, terrestres, aphylle ; radice e fibris crassis carnosis articulatis 3 scapo robusto, vagi- 
nato ; racemo multifloro ; floribus sublonge pedicellatis, patentibus, roseis. 
This remarkable genus is, so far as is at present known, confined to Australia and New Caledonia; it is one 
of the few terrestrial Vandee of the southern hemisphere. D. punctatum is a stout, erect, leafless, glabrous herb, 
1-2 feet high.— Roots of many spreading, stout, articulate, terete fibres. Scape strict, erect, with a few ap- 
pressed, short, sheathing, acuminate scales, which are more numerous and i abricating at the base of the scape. 
Raceme erect, 3-6 inches long. Flowers deep pink or purplish, on long, 
Perianth spreading. Sepals and petals nearly equal, linear-oblong, 
spotted with darker colour. Zabellum about as long as the petals, of t 
claw, with which the rather longer, oblong, thick, straight lamina is 
lumn straight, semiterete, as long as the claw of the labellum, te 
celled anther, below which is a small stigma. Pollen-masses two, globose, two-lobed, waxy, attached to the stig- 
matic gland by short caudicles. (Name from dis, two, and mous, a foot; in allusion to the caudicled pollen.) 
l. Dipodium punctatum (Br. Prodr. 331); squamis radicalibus late ovatis acutis ecarinatis, 
rioribus ad basin fissis, bracteis lanceolatis, labello recto 
Feot. Bot. i. 21. t. 12; Lindl. Gen. et Sp. Orchid. 186 
CXXVII.) 
Has. Forests: Circular Head, Gunn; Port Sorrell 
growing near Fucalypti, Archer.— (El. March ?) 
DisrRis. New South Wales and Victoria. 
Piare CXXVII. Fig. 1 and 2, labellum ; 3 and 4, column :—all magnified. 
slender, spreading pedicels, 3 inch long. 
obtuse, with recurved margins, rose-coloured, 
wo parts, a broad, subconcave, thick, margined 
jointed; lamina glandular in the middle. Co- 
rminated by a small, convex, deciduous, two- 
supe- 
disco glanduloso.—Dendrobium punctatum, Smith, 
; Bot. Reg. xxiii. t. 1980. (Gunn, 197.) (Tan, 
and Cheshunt, in stony and moist places, generally 
Perianthium ringens. Sepala lanceolato-oblonga ; dorsale erectum; lateralià subfalcata, ungui elongato 
! abellum longe unguiculatum, porrectum ; lamina 3-loba, 
disco tuberculato, mucrone inflexo, lobis lateralibus late oblongis, obtusis, ascendentibus, conniventibus, 
Columna brevis, semiteres, aptera, rostello bifido. Anthera 2-locularis. Pollinia 4, cereacea, per paria 
globosa, arcte connata, caudiculm late lineari adnata.— Herba epiphytica ; radicibus tortis, filiformibus, 
elongatis; caule brevissimo ; foliis 3-5, distichis, Jalcatis, lineari-lanceolatis, acuminatis, basi articulatis ` 
scapo breviusculo ; floribus flavis, racemosis, patentibus, longiuscule pedicellatis. 
Gunnia is one of the most southern of the Epiphytie Orchidee, and is unknown in Australia, where epiphytes 
have hitherto been found only to the northward of Port Jackson or Illawarra. It is closely allied to the genus 
