MONOCOTYLEDONS 
Orchidaceae 
DENDROBIUM 
Br. Prodr. 332 (1810) ; Benth. FV. Austral, vi. 279; Bailey, Queensland Flora, 1 525. 
UNDULATUM 
[PLatE 299.] 
Calyx nullus. Corolla pentapetala : petala subzequalia, lanceolato- 
oblonga, acutiuscula, patula, revoluta, unciam longa ; duo exteriora 
sordide flava, supra 
marginibus immaculatis, circa nectarium divaricata, margine remote 
undulata, basi subtus extra germen connata et producta in calcar e lata 
basi conicum, duplo brevius, apice supra 
Nectarium monopetalum, e 
calcare nectarii erectum, latere connivens, petalis + brevius, sordide 
e viridi flavicans, linea dorsali lata albida, intus subspongiosa, 
incrassata, carinis tribus acutis margine subviolaceis exarata, apice 
trilobum; obi  laterales rotundati, obtusissimi; intermedius duplo 
altior et duplo angustior, 
atomis obscure rubentibus dense irrorata, 
acutiusculum, _ petalis 
connivens, superius autem apertum, 
ovatus, acutus, patulo-reflexus, valde 
Columna fructification?: plana, 
duplo brevior, inferne basi floris adnata, ibique albida, dein supra 
germen erecta, pallide rubicunda, antice concava, apice excavata pro 
antheris recipiendis. Fidamentorum theca lata, concava, subbilocularis, 
supra plana, supra fossulam columne opercularis, flavicans, pedicellata ; 
pedicellus e lata basi subulatus, brevis, margini postico columna 
fulamenta duo, capillaria, brevissima, thece inserta. 
undulatus. crassiuscula nectario 
insertus. 
Anthere oblong, intense Germen inferum 
turbinatum, acute hexagonum. 
Stigma cavo column adnatum viscidum, virescens. 
glabra. Cautis sepe quadripedalis, crassitie pollicis, erectus, vaginis 
foliorum tectus, anceps, angulis acutis, inferne sulcatus, porcis magnis, 
obtusis, fotia alterna, _ sessilia, 
subpatula, ovata, emarginata, integerrima, parum concava, inferne 
carinata, carnosa, crassa, rigida, late viridia, quatuor ungias longa, 
basi coarctata in vaginas integras, caulum arcte vestientes, seepe 
Racemi pyramidales, 
flavze, glabrata. 
Stylus nullus vel column adnatus. 
Tota planta 
superne obsoletis acutiusculis. 
unciales, persistentes post lapsum foliorum. 
multiflori, erecti, simplices, pedales et ultra, pedunculati. Pedunculi 
oppositifolii, solitarii, teretes, sordide purpurascentes, crassitie penne 
anserine, per spatium spithamale infra flores nudi, vaginis tantum- 
modo membranaceis Pedicelli horizontales, 
teretes, flavicantes, uniflori, inferiores biunciales, superiores sensim 
oblonga, acuta, sub singulo 
remotiusculis — cincti. 
breviores. | Bractea membranacea, 
pedicello, illoque triplo brevior. 
Bustard Bay, Bay of Inlets, Cape Grafton, Endeavour’s River. 
DENDROBIUM CANALICULATUM 
Br. Prodr. 333 (1810); Benth. Fl. Austral. vi. 282 ; Bailey, Queensland Flora, 1530. 
[PLaTE 300.] _ 
Scapus ex axillis foliorum erectus, strictus, teres, rubicundus, 
glaber, crassitie penne passerine, unica alterave vagina mem- 
branacea tenuissima integra pellucida in medio et prope basin cinctus. 
Racemus terminalis, ovato-conicus, circiter vigintiflorus. Pedunculi 
horizontales, teretes, laeves, albidi, inferiores sub  florescentia 
semunciales, superiores sensim breviores. Bractea subulata bilinearis 
sub singulo pedunculo. Cadyx nullus. Petada quinque, subzequalia, 
lineari-oblonga, obtusa, patula, flexuoso-contorta, infra medium alba, 
supra. medium  sordide lutea, paulo longiora; duo 
extertora paulo breviora, a se invicem pro nectario divaricata, basi 
subtus extra germen connata et in calcar obtusum trilineare apice 
virescens extensa; petala duo lateralia reliquis paulo angustiora. 
Nectarium monopetalum, e sinu calcaris petalorum  exteriorum 
erectum, versus columnam fructificationis inclinans, apice divergens, 
petalis 4 brevius, marginibus laterum inflexis, trilobum ; lobi laterales 
semuncia 
DENDROBIUM 
oblongi, obtusi, subconniventes, paulo supra medium exserti, breves, 
purpurei striis albidis picti; lobus terminalis subrotundus, acutus, 
intus carinis tribus acutis crenulatis, longitudinalibus instructus, versus 
apicem saturate e purpureo violaceus. Ons. Reliqua partes nectarii 
albe. Columna fructificationis omnino uti in [Dendrobio] rigido 
apice laterum purpurea. S/amina et Pistillum ex loco citato. Bulbi 
oblongi, sursum angustati, sesquiunciales, longitudinaliter sulcati, 
porcis obtusis. adices infra bulbos exserti, numerosi, filiformes, 
intra lamellas corticis precipue Welaleuce angustifolie reptantes, 
flexuose. Sola pauca, ex apicibus bulborum erecta, stricta, carnosa, 
rigidiuscula, lanceolato-subulata, semicylindracea, acuta, intus profunde 
canaliculata, basi dilatata, vaginantia, quatuor uncias longa, crassitie 
penne anserinz, e cinereo viridia. 
Endeavour’s River (on draw:ng; there are no specimens). 
RIGIDUM 
Br. Prodr. 333 (1810); Benth. Fl. Austral. vi. 284; Bailey, Queensland Flora, 1533. 
[PiaTEe 301.] 
Calyx nullus. Corolla pentapetala, 
Parasitica in arboribus habitat. 
Petata duo exteriora que 
ovata, intus patula, e carneo sordide albida. ; 
aperture proxima ovato-oblonga, acutiuscula, plana, erecta, pro nectario 
divaricata, inferne oblique rotundata, basique sub nectario extra germen 
connata; duo lateralia receptaculo intra reliqua inserta, lanceolata, 
acuta, erecta, apice patula; extimum oblongum, acutiusculum, planius- 
culum; omnia circiter 4 lineas longa. Mectartum basi petalorum, 
exteriorum ad illorum sinus insertum, oblongum, obtusum, longitudine 
petalorum, parum inflexum, extus convexum, rubrum, linea dorsali lata 
flavicanti, utrinque infra medium lobulo parvo erecto acutiusculo 
auctum. Columna fructificationis oblonga, basi petalorum exteriorum 
adnata, dein nectario opposita adscendens, petalis triplo brevior, intus 
valde concava, apice excavata. Filamentum unicum, subulatum, 
gl 
columnee fructificationis apice insertum, antrorsum inclinans, terminatum 
theca magna, subrotunda, truncata, excavata, bilocularis. Anthere 
bine, oblong, loculis theca affixe; cfr. [D. undulatum)]. Germen 
inferum, turbinatum. Stylus columnee fructificationis adnatus. Stigma 
cavo columna adnatum infra thecam antherarum. Casula obovata, 
glabra, fere semunciam longa, subcarnosa, unilocularis, trivalvis. 
Semina numerosa. Caudes numerosi, vix spithamei, expansi, Radices 
numerosissime, filiformes, flexuosze, planiuscula. Fodia alterna, 
oblongo-lanceolata, acuta, carnosa, crassa, rigida, non nitida, unciam 
longa, parum incurva, sordide virentia. Panicude axillares, pauciflore, 
patulz, longitudine foliorum. 
Endeavour’s River (on drawing; there are no specimens). Bentham knew the 
plant only from this plate; but it has since been met with (see Bailey, 1. c.) 
