Campbells Islands.'] FLORA ANTARCTICA. G9 



XXVI. ORCHIDE^E, Juss. 



1. Chiloglottis cornuta, Hook. fil. ; perianthio ringente, foliolis inferioribus linearibus obtusis 

 canaliculars, interioribus erectis ovato-lanceolatis acutis dorsali ovato-lanceolato acuminate, labello 

 trulliformi versus apicem attenuate disco 6-glanduloso, glandula intermedia basali (appendix labelli) 

 porrecta subrecurva. 



Hab. Campbell's Island ; on the decaying roots of trees in shaded places, rare : D. Lyall, Esq. 



Radix tuberosa ; tuberibus 2, pisiformibus, remotis, caudice elongato, radiciformi, descendente connexis. 

 Folia 2, petiolata, patentia v. subrecurva, ovata, v. ovato-lanceolata, subacuta, 1-1^ unc. longa, l-i unc. lata, 

 nervis parallelis, venisque transversalibus reticulata, planiuscula. Petioli erecti, §-f unc. longi, basi vaginantes, 

 vagina scariosa, integra. Scopus erectus, gracilis, brevis, i uncialis, medio bracteatus, uniflorus. Bractea spa- 

 thacea, ovata, acuminata, membranacea, florem immaturum amplectens. Flos una cum ovario | unc. longus, 

 erectus. Perianthium obliquum, foliola omnia erecta ; exteriora v. sepala subaequalia, superius v. dorsale paulo 

 majus, concavum, vix cucullatum, ovato-lanceolatum, longe acuminatum, apice subulatum, sub 5-nerve ; infe- 

 riora labello supposita, ima basi lata, deinde linearia, obtusa, curvata, marginibus involutis, superiore aequilonga ; 

 foliola interiora sive petala erecta, ovato-lanceolata ; exteriora breviora, submembranacea, trinervia, versus 

 apices subserrulata v. undulata. Labellum erectum, unguiculatum, petalis paulo brevius ; lamina planiuscula 

 trulliformis, vel triangulari-cordata, attenuata, basi truncato-biloba, breviter petiolata, disco 6-glanduloso ; 

 glandula v. tubercula valde prominentes, 4 laterales subquadratae, compressae, squamseformes, duae prope basin, 

 aliaeque altius sitae ; intermediarum basali (v. appendicula) supra discum elata, porrecta, cornu referens, et re- 

 curva, antice canaliculata ; quinta trilobata. Columna erecta, modice arcuata, valida, superne bifida, bialata, alis 

 angustis. Anthera apice recurva. 



An glandula? laterales labelli vere clavats, siccitate tantum compressae et quasi squamaeformes ? 



This is a very interesting plant, belonging to an Australian genus of which only two species were previously 

 known. I have never seen it alive, and am therefore unable to give a coloured figure of the plant. In Tasma- 

 nia two species grow at the foot of Mount Wellington, in a latitude however much below that of Campbell's 

 Island and in a widely different climate. The flower is smaller than that of C. Gunnii, Lindl., to which, of the 

 two other species, the present is, on account of the erect petals, most nearly allied. I am inclined to think that 

 the glands on the disc of the labellum will be found to prove a variable character. In one Tasmanian species 

 they bear the most striking resemblance in form and colour to an ant. 



2. Thelymitra stenopetala, Hook. fil. ; foliis petiolatis lineari-lanceolatis gradatim acuminatis, 

 scapo 1-2-floro, perianthii foliolis lanceolatis acuminatis, cuculli lobulis lateralibus plumosis, capsulis 

 inclinatis paulo curvatis lineari-oblongis. 



Hab. Lord Auckland's group ; in woods and on the bare ground in exposed places, not un- 

 common. 



The leaves of this plant are dark green, very coriaceous, about 4 inches long and 3-4 lines in breadth, gra- 

 dually attenuated below into a narrow sheathing petiole. The scapes of the former year, bearing the fruit and 

 crowned with the withered, persistent perianth, were found along with the young leaves. The capsules are 

 shortly pedunculate, pale brown, i-| of an inch long ; the column considerably curved, the lateral lobes each 

 with a tuft of hairs. 



I have closely compared my very indifferent specimens of this plant with the several species of New Zea- 

 land and Tasmania, and have no hesitation in describing it as new. 



