240 FLORA OF NEW ZEALAND. [ Orchidee. 
A shorter, more robust plant than Æ. mucronata. Stems li foot high, slightly compressed. Leaves 25-33 
inches long, 4 broad, rigid, nerved and striated, sharp or acuminate. Paniclerigid, rarely simple, usually with many 
diverging many-flowered distichous branches. Bracts crowded, imbricated. Flowers white, speckled. Sepals broadly 
oblong. Petals ovate. Labellum broad, obscurely three-lobed, retuse. 
Gen. II. DENDROBIUM, 7. 
Perianthii foliola membranacea, patentia. Sepala lateralia majora, obliqua, cum pede columne con- 
nata. Labellum pede columne articulatum v. connatum, sessile. Columna semiteres, basi longe producta. 
Anthera 2-locularis. Pollinia 4, per paria collateralia.—Herbx epiphytica, caulescentes. 
A very large Tropical Asiatic genus, of which several species are found in Australia and Polynesia, and one in 
New Zealand. D. Ounninghamii is a tufted epiphyte, with masses of cylindrical white roots on trunks of trees, etc., 
and numerous, pendulous, slender, wiry, polished, branching stems, 1-2 feet long. Leaves numerous, distichous, 
1-13 inch long, + broad, linear, acuminate, striated, pale green, three-nerved. Flowers 3 inch broad, in axillary, 
slender, branched, two- or more-flowered racemes, which are shorter than the leaves. Pedicels slender, bracteolate. 
Leaflets of the perianth nearly equal in length. Sepals acute, upper narrower, lower broad, united at the base to- 
gether, and with the base of the lip, into a blunt prominent spur. Petals oblong, blunt. Zip continuous with the 
base of the column ; claw long, connate with the lower sepals ; lamina three-lobed ; outer lobes small, middle broad, 
retuse, or truncate, broader than long, undulated; disc with five lamelle.—This species is allied to the Polynesian 
D. biflorum, Sw., of Otaheite. (Name from devöpov, a tree, and Bus, life; in allusion to the epiphytical habit.) 
1. Dendrobium Cunningham, Lindl.; caulibus pendulis fasciculatis ramosis gracilibus teretibus 
foliosis, foliis distichis linearibus acuminatis striatis 3-nerviis, pedunculis gracilibus 2-4-floris folio breviori- 
bus, sepalis ovatis acutis, petalis oblongis subacutis, labello 3-lobo, lobis lateralibus parvis obtusis, inter- 
medio amplo undulato retuso, disco 5-lamellato. Lindl. in Bot. Reg. sub 1756. A. Cunn. Prodr. D. bi- 
florum, 4. Rich. Flor. non Swartz. Epidendrum biflorum, Forst. Prodr. E.ramosum, Banks et Sol. MSS. 
et le. 
Has. Throughout the Islands, as far south as Stewart’s Island, Banks and Solander, ete. 
Gen. III. BOLBOPHYLLUM, Thouars. 
Sepala subæqualia; lateralia obliqua, pede columnæ connata; petala plerumque minora. Zabellum 
pede columns articulatum, unguiculatum, sepius integrum et posticum. Columna nana, antice 2-cornis. 
Anthera 1-2-locularis. Pollinia 4, valde ineequalia.—Herbee epiphytice; rhizomate repente, pseudo- 
hulbifero. 
This genus abounds throughout the Tropics, but few species have been found south of those limits. The New 
Zealand B. pygmeum is one of the smallest, and forms flat mossy masses of interwoven creeping rhizomata and long 
fibrous roots on the limbs of trees. Pseudo-bulbs rounded, the size of a pepper-corn. Leaf solitary, sessile, 
linear-oblong, coriaceous, i inch long, grooved down the middle. Flowers very minute, solitary, on a bracteate 
pedicel rising from the base of the pseudo-bulb. Ovary short, turgid, gibbous, hairy. Upper sepal hooded, sub- 
acute; lateral very broadly ovate, acute, united with the claw.of the labellum into a blunt prominent spur. Petals 
linear-oblong, blunt, shorter than the sepals. Zip with an articulate, ovate, blunt lamina; disc with thickened lines 
down the centre. Column very short, with two prominent teeth in front. (Name from BoXBos, a bulb, and pudov, 
a leaf.) 
1. Bolbophyllum pygmaum, Lindl. ; rhizomate intertexto repente, pseudobulbis depressis, folio lineari- 
oblongo subacuto, pedunculo 1-floro bracteato folio equilongo, ovario turgido perianthiogue minimo pilosis, 
